* [PATCH 25/39] drbd: switch to proc_create_single
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
And stop messing with try_module_get on THIS_MODULE, which doesn't make
any sense here.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/drbd/drbd_int.h | 2 +-
drivers/block/drbd/drbd_main.c | 3 ++-
drivers/block/drbd/drbd_proc.c | 34 +---------------------------------
3 files changed, 4 insertions(+), 35 deletions(-)
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 06ecee1b528e..461ddec04e7c 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1643,7 +1643,7 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin
/* drbd_proc.c */
extern struct proc_dir_entry *drbd_proc;
-extern const struct file_operations drbd_proc_fops;
+int drbd_seq_show(struct seq_file *seq, void *v);
/* drbd_actlog.c */
extern bool drbd_al_begin_io_prepare(struct drbd_device *device, struct drbd_interval *i);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 185f1ef00a7c..c2d154faac02 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -3010,7 +3010,8 @@ static int __init drbd_init(void)
goto fail;
err = -ENOMEM;
- drbd_proc = proc_create_data("drbd", S_IFREG | S_IRUGO , NULL, &drbd_proc_fops, NULL);
+ drbd_proc = proc_create_single("drbd", S_IFREG | S_IRUGO , NULL,
+ drbd_seq_show);
if (!drbd_proc) {
pr_err("unable to register proc file\n");
goto fail;
diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c
index 582caeb0de86..74ef29247bb5 100644
--- a/drivers/block/drbd/drbd_proc.c
+++ b/drivers/block/drbd/drbd_proc.c
@@ -33,18 +33,7 @@
#include <linux/drbd.h>
#include "drbd_int.h"
-static int drbd_proc_open(struct inode *inode, struct file *file);
-static int drbd_proc_release(struct inode *inode, struct file *file);
-
-
struct proc_dir_entry *drbd_proc;
-const struct file_operations drbd_proc_fops = {
- .owner = THIS_MODULE,
- .open = drbd_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = drbd_proc_release,
-};
static void seq_printf_with_thousands_grouping(struct seq_file *seq, long v)
{
@@ -235,7 +224,7 @@ static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *se
}
}
-static int drbd_seq_show(struct seq_file *seq, void *v)
+int drbd_seq_show(struct seq_file *seq, void *v)
{
int i, prev_i = -1;
const char *sn;
@@ -345,24 +334,3 @@ static int drbd_seq_show(struct seq_file *seq, void *v)
return 0;
}
-
-static int drbd_proc_open(struct inode *inode, struct file *file)
-{
- int err;
-
- if (try_module_get(THIS_MODULE)) {
- err = single_open(file, drbd_seq_show, NULL);
- if (err)
- module_put(THIS_MODULE);
- return err;
- }
- return -ENODEV;
-}
-
-static int drbd_proc_release(struct inode *inode, struct file *file)
-{
- module_put(THIS_MODULE);
- return single_release(inode, file);
-}
-
-/* PROC FS stuff end */
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 24/39] resource: switch to proc_create_seq_data
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
And use the root resource directly from the proc private data.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
kernel/resource.c | 43 +++++--------------------------------------
1 file changed, 5 insertions(+), 38 deletions(-)
diff --git a/kernel/resource.c b/kernel/resource.c
index 2af6c03858b9..b589dda910b3 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -87,7 +87,7 @@ enum { MAX_IORES_LEVEL = 5 };
static void *r_start(struct seq_file *m, loff_t *pos)
__acquires(resource_lock)
{
- struct resource *p = m->private;
+ struct resource *p = PDE_DATA(file_inode(m->file));
loff_t l = 0;
read_lock(&resource_lock);
for (p = p->child; p && l < *pos; p = r_next(m, p, &l))
@@ -103,7 +103,7 @@ static void r_stop(struct seq_file *m, void *v)
static int r_show(struct seq_file *m, void *v)
{
- struct resource *root = m->private;
+ struct resource *root = PDE_DATA(file_inode(m->file));
struct resource *r = v, *p;
unsigned long long start, end;
int width = root->end < 0x10000 ? 4 : 8;
@@ -135,44 +135,11 @@ static const struct seq_operations resource_op = {
.show = r_show,
};
-static int ioports_open(struct inode *inode, struct file *file)
-{
- int res = seq_open(file, &resource_op);
- if (!res) {
- struct seq_file *m = file->private_data;
- m->private = &ioport_resource;
- }
- return res;
-}
-
-static int iomem_open(struct inode *inode, struct file *file)
-{
- int res = seq_open(file, &resource_op);
- if (!res) {
- struct seq_file *m = file->private_data;
- m->private = &iomem_resource;
- }
- return res;
-}
-
-static const struct file_operations proc_ioports_operations = {
- .open = ioports_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static const struct file_operations proc_iomem_operations = {
- .open = iomem_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
static int __init ioresources_init(void)
{
- proc_create("ioports", 0, NULL, &proc_ioports_operations);
- proc_create("iomem", 0, NULL, &proc_iomem_operations);
+ proc_create_seq_data("ioports", 0, NULL, &resource_op,
+ &ioport_resource);
+ proc_create_seq_data("iomem", 0, NULL, &resource_op, &iomem_resource);
return 0;
}
__initcall(ioresources_init);
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 23/39] staging/rtl8192u: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: Alexey Dobriyan, Greg Kroah-Hartman, Jiri Slaby, Corey Minyard,
Alessandro Zummo, Alexandre Belloni, linux-acpi, drbd-dev,
linux-ide, netdev, linux-rtc, megaraidlinux.pdl, linux-scsi,
devel, linux-afs, linux-ext4, jfs-discussion, netfilter-devel,
linux-kernel
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Unwind the registration loop into individual calls. Switch to use
proc_create_single where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/staging/rtl8192u/r8192U_core.c | 67 ++++++--------------------
1 file changed, 14 insertions(+), 53 deletions(-)
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index d607c59761cf..7a0dbc0fa18e 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -646,64 +646,25 @@ static void rtl8192_proc_module_init(void)
rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
}
-/*
- * seq_file wrappers for procfile show routines.
- */
-static int rtl8192_proc_open(struct inode *inode, struct file *file)
-{
- struct net_device *dev = proc_get_parent_data(inode);
- int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
-
- return single_open(file, show, dev);
-}
-
-static const struct file_operations rtl8192_proc_fops = {
- .open = rtl8192_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * Table of proc files we need to create.
- */
-struct rtl8192_proc_file {
- char name[12];
- int (*show)(struct seq_file *, void *);
-};
-
-static const struct rtl8192_proc_file rtl8192_proc_files[] = {
- { "stats-rx", &proc_get_stats_rx },
- { "stats-tx", &proc_get_stats_tx },
- { "stats-ap", &proc_get_stats_ap },
- { "registers", &proc_get_registers },
- { "" }
-};
-
static void rtl8192_proc_init_one(struct net_device *dev)
{
- const struct rtl8192_proc_file *f;
struct proc_dir_entry *dir;
- if (rtl8192_proc) {
- dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
- if (!dir) {
- RT_TRACE(COMP_ERR,
- "Unable to initialize /proc/net/rtl8192/%s\n",
- dev->name);
- return;
- }
+ if (!rtl8192_proc)
+ return;
- for (f = rtl8192_proc_files; f->name[0]; f++) {
- if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir,
- &rtl8192_proc_fops, f->show)) {
- RT_TRACE(COMP_ERR,
- "Unable to initialize /proc/net/rtl8192/%s/%s\n",
- dev->name, f->name);
- return;
- }
- }
- }
+ dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev);
+ if (!dir)
+ return;
+
+ proc_create_single("stats-rx", S_IFREG | S_IRUGO, dir,
+ proc_get_stats_rx);
+ proc_create_single("stats-tx", S_IFREG | S_IRUGO, dir,
+ proc_get_stats_tx);
+ proc_create_single("stats-ap", S_IFREG | S_IRUGO, dir,
+ proc_get_stats_ap);
+ proc_create_single("registers", S_IFREG | S_IRUGO, dir,
+ proc_get_registers);
}
static void rtl8192_proc_remove_one(struct net_device *dev)
--
2.17.0
^ permalink raw reply related
* [PATCH 22/39] jfs: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: Alexey Dobriyan, Greg Kroah-Hartman, Jiri Slaby, Corey Minyard,
Alessandro Zummo, Alexandre Belloni, linux-acpi, drbd-dev,
linux-ide, netdev, linux-rtc, megaraidlinux.pdl, linux-scsi,
devel, linux-afs, linux-ext4, jfs-discussion, netfilter-devel,
linux-kernel
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/jfs/jfs_debug.c | 43 ++++++++++++++-----------------------------
fs/jfs/jfs_debug.h | 10 +++++-----
fs/jfs/jfs_logmgr.c | 14 +-------------
fs/jfs/jfs_metapage.c | 14 +-------------
fs/jfs/jfs_txnmgr.c | 28 ++--------------------------
fs/jfs/jfs_xtree.c | 14 +-------------
6 files changed, 24 insertions(+), 99 deletions(-)
diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c
index a70907606025..35a5b2a81ae0 100644
--- a/fs/jfs/jfs_debug.c
+++ b/fs/jfs/jfs_debug.c
@@ -29,7 +29,6 @@
#ifdef PROC_FS_JFS /* see jfs_debug.h */
-static struct proc_dir_entry *base;
#ifdef CONFIG_JFS_DEBUG
static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
{
@@ -66,43 +65,29 @@ static const struct file_operations jfs_loglevel_proc_fops = {
};
#endif
-static struct {
- const char *name;
- const struct file_operations *proc_fops;
-} Entries[] = {
-#ifdef CONFIG_JFS_STATISTICS
- { "lmstats", &jfs_lmstats_proc_fops, },
- { "txstats", &jfs_txstats_proc_fops, },
- { "xtstat", &jfs_xtstat_proc_fops, },
- { "mpstat", &jfs_mpstat_proc_fops, },
-#endif
-#ifdef CONFIG_JFS_DEBUG
- { "TxAnchor", &jfs_txanchor_proc_fops, },
- { "loglevel", &jfs_loglevel_proc_fops }
-#endif
-};
-#define NPROCENT ARRAY_SIZE(Entries)
-
void jfs_proc_init(void)
{
- int i;
+ struct proc_dir_entry *base;
- if (!(base = proc_mkdir("fs/jfs", NULL)))
+ base = proc_mkdir("fs/jfs", NULL);
+ if (!base)
return;
- for (i = 0; i < NPROCENT; i++)
- proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
+#ifdef CONFIG_JFS_STATISTICS
+ proc_create_single("lmstats", 0, base, jfs_lmstats_proc_show);
+ proc_create_single("txstats", 0, base, jfs_txstats_proc_show);
+ proc_create_single("xtstat", 0, base, jfs_xtstat_proc_show);
+ proc_create_single("mpstat", 0, base, jfs_mpstat_proc_show);
+#endif
+#ifdef CONFIG_JFS_DEBUG
+ proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show);
+ proc_create("loglevel", 0, base, &jfs_loglevel_proc_fops);
+#endif
}
void jfs_proc_clean(void)
{
- int i;
-
- if (base) {
- for (i = 0; i < NPROCENT; i++)
- remove_proc_entry(Entries[i].name, base);
- remove_proc_entry("fs/jfs", NULL);
- }
+ remove_proc_subtree("fs/jfs", NULL);
}
#endif /* PROC_FS_JFS */
diff --git a/fs/jfs/jfs_debug.h b/fs/jfs/jfs_debug.h
index eafd1300a00b..0d9e35da8462 100644
--- a/fs/jfs/jfs_debug.h
+++ b/fs/jfs/jfs_debug.h
@@ -62,7 +62,7 @@ extern void jfs_proc_clean(void);
extern int jfsloglevel;
-extern const struct file_operations jfs_txanchor_proc_fops;
+int jfs_txanchor_proc_show(struct seq_file *m, void *v);
/* information message: e.g., configuration, major event */
#define jfs_info(fmt, arg...) do { \
@@ -105,10 +105,10 @@ extern const struct file_operations jfs_txanchor_proc_fops;
* ----------
*/
#ifdef CONFIG_JFS_STATISTICS
-extern const struct file_operations jfs_lmstats_proc_fops;
-extern const struct file_operations jfs_txstats_proc_fops;
-extern const struct file_operations jfs_mpstat_proc_fops;
-extern const struct file_operations jfs_xtstat_proc_fops;
+int jfs_lmstats_proc_show(struct seq_file *m, void *v);
+int jfs_txstats_proc_show(struct seq_file *m, void *v);
+int jfs_mpstat_proc_show(struct seq_file *m, void *v);
+int jfs_xtstat_proc_show(struct seq_file *m, void *v);
#define INCREMENT(x) ((x)++)
#define DECREMENT(x) ((x)--)
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 0e5d412c0b01..6b68df395892 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -2493,7 +2493,7 @@ int lmLogFormat(struct jfs_log *log, s64 logAddress, int logSize)
}
#ifdef CONFIG_JFS_STATISTICS
-static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
+int jfs_lmstats_proc_show(struct seq_file *m, void *v)
{
seq_printf(m,
"JFS Logmgr stats\n"
@@ -2510,16 +2510,4 @@ static int jfs_lmstats_proc_show(struct seq_file *m, void *v)
lmStat.partial_page);
return 0;
}
-
-static int jfs_lmstats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, jfs_lmstats_proc_show, NULL);
-}
-
-const struct file_operations jfs_lmstats_proc_fops = {
- .open = jfs_lmstats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif /* CONFIG_JFS_STATISTICS */
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 1a3b0cc22ad3..fa2c6824c7f2 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -815,7 +815,7 @@ void __invalidate_metapages(struct inode *ip, s64 addr, int len)
}
#ifdef CONFIG_JFS_STATISTICS
-static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
+int jfs_mpstat_proc_show(struct seq_file *m, void *v)
{
seq_printf(m,
"JFS Metapage statistics\n"
@@ -828,16 +828,4 @@ static int jfs_mpstat_proc_show(struct seq_file *m, void *v)
mpStat.lockwait);
return 0;
}
-
-static int jfs_mpstat_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, jfs_mpstat_proc_show, NULL);
-}
-
-const struct file_operations jfs_mpstat_proc_fops = {
- .open = jfs_mpstat_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 4d973524c887..a5663cb621d8 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -2998,7 +2998,7 @@ int jfs_sync(void *arg)
}
#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_DEBUG)
-static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
+int jfs_txanchor_proc_show(struct seq_file *m, void *v)
{
char *freewait;
char *freelockwait;
@@ -3032,22 +3032,10 @@ static int jfs_txanchor_proc_show(struct seq_file *m, void *v)
list_empty(&TxAnchor.unlock_queue) ? "" : "not ");
return 0;
}
-
-static int jfs_txanchor_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, jfs_txanchor_proc_show, NULL);
-}
-
-const struct file_operations jfs_txanchor_proc_fops = {
- .open = jfs_txanchor_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
#if defined(CONFIG_PROC_FS) && defined(CONFIG_JFS_STATISTICS)
-static int jfs_txstats_proc_show(struct seq_file *m, void *v)
+int jfs_txstats_proc_show(struct seq_file *m, void *v)
{
seq_printf(m,
"JFS TxStats\n"
@@ -3072,16 +3060,4 @@ static int jfs_txstats_proc_show(struct seq_file *m, void *v)
TxStat.txLockAlloc_freelock);
return 0;
}
-
-static int jfs_txstats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, jfs_txstats_proc_show, NULL);
-}
-
-const struct file_operations jfs_txstats_proc_fops = {
- .open = jfs_txstats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index 5cde6d2fcfca..2c200b5256a6 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -3874,7 +3874,7 @@ s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
}
#ifdef CONFIG_JFS_STATISTICS
-static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
+int jfs_xtstat_proc_show(struct seq_file *m, void *v)
{
seq_printf(m,
"JFS Xtree statistics\n"
@@ -3887,16 +3887,4 @@ static int jfs_xtstat_proc_show(struct seq_file *m, void *v)
xtStat.split);
return 0;
}
-
-static int jfs_xtstat_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, jfs_xtstat_proc_show, NULL);
-}
-
-const struct file_operations jfs_xtstat_proc_fops = {
- .open = jfs_xtstat_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
--
2.17.0
^ permalink raw reply related
* [PATCH 21/39] ext4: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/ext4/ext4.h | 2 +-
fs/ext4/mballoc.c | 29 ++++------------------------
fs/ext4/sysfs.c | 49 +++++++++--------------------------------------
3 files changed, 14 insertions(+), 66 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a42e71203e53..229ea4da6785 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2390,7 +2390,7 @@ extern int ext4_init_inode_table(struct super_block *sb,
extern void ext4_end_bitmap_read(struct buffer_head *bh, int uptodate);
/* mballoc.c */
-extern const struct file_operations ext4_seq_mb_groups_fops;
+extern const struct seq_operations ext4_mb_seq_groups_ops;
extern long ext4_mb_stats;
extern long ext4_mb_max_to_scan;
extern int ext4_mb_init(struct super_block *);
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 769a62708b1c..6884e81c1465 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2254,7 +2254,7 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
static void *ext4_mb_seq_groups_start(struct seq_file *seq, loff_t *pos)
{
- struct super_block *sb = seq->private;
+ struct super_block *sb = PDE_DATA(file_inode(seq->file));
ext4_group_t group;
if (*pos < 0 || *pos >= ext4_get_groups_count(sb))
@@ -2265,7 +2265,7 @@ static void *ext4_mb_seq_groups_start(struct seq_file *seq, loff_t *pos)
static void *ext4_mb_seq_groups_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct super_block *sb = seq->private;
+ struct super_block *sb = PDE_DATA(file_inode(seq->file));
ext4_group_t group;
++*pos;
@@ -2277,7 +2277,7 @@ static void *ext4_mb_seq_groups_next(struct seq_file *seq, void *v, loff_t *pos)
static int ext4_mb_seq_groups_show(struct seq_file *seq, void *v)
{
- struct super_block *sb = seq->private;
+ struct super_block *sb = PDE_DATA(file_inode(seq->file));
ext4_group_t group = (ext4_group_t) ((unsigned long) v);
int i;
int err, buddy_loaded = 0;
@@ -2330,34 +2330,13 @@ static void ext4_mb_seq_groups_stop(struct seq_file *seq, void *v)
{
}
-static const struct seq_operations ext4_mb_seq_groups_ops = {
+const struct seq_operations ext4_mb_seq_groups_ops = {
.start = ext4_mb_seq_groups_start,
.next = ext4_mb_seq_groups_next,
.stop = ext4_mb_seq_groups_stop,
.show = ext4_mb_seq_groups_show,
};
-static int ext4_mb_seq_groups_open(struct inode *inode, struct file *file)
-{
- struct super_block *sb = PDE_DATA(inode);
- int rc;
-
- rc = seq_open(file, &ext4_mb_seq_groups_ops);
- if (rc == 0) {
- struct seq_file *m = file->private_data;
- m->private = sb;
- }
- return rc;
-
-}
-
-const struct file_operations ext4_seq_mb_groups_fops = {
- .open = ext4_mb_seq_groups_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
static struct kmem_cache *get_groupinfo_cache(int blocksize_bits)
{
int cache_index = blocksize_bits - EXT4_MIN_BLOCK_LOG_SIZE;
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 9ebd26c957c2..f34da0bb8f17 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -346,39 +346,9 @@ static struct kobject *ext4_root;
static struct kobject *ext4_feat;
-#define PROC_FILE_SHOW_DEFN(name) \
-static int name##_open(struct inode *inode, struct file *file) \
-{ \
- return single_open(file, ext4_seq_##name##_show, PDE_DATA(inode)); \
-} \
-\
-static const struct file_operations ext4_seq_##name##_fops = { \
- .open = name##_open, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
-}
-
-#define PROC_FILE_LIST(name) \
- { __stringify(name), &ext4_seq_##name##_fops }
-
-PROC_FILE_SHOW_DEFN(es_shrinker_info);
-PROC_FILE_SHOW_DEFN(options);
-
-static const struct ext4_proc_files {
- const char *name;
- const struct file_operations *fops;
-} proc_files[] = {
- PROC_FILE_LIST(options),
- PROC_FILE_LIST(es_shrinker_info),
- PROC_FILE_LIST(mb_groups),
- { NULL, NULL },
-};
-
int ext4_register_sysfs(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- const struct ext4_proc_files *p;
int err;
init_completion(&sbi->s_kobj_unregister);
@@ -392,11 +362,14 @@ int ext4_register_sysfs(struct super_block *sb)
if (ext4_proc_root)
sbi->s_proc = proc_mkdir(sb->s_id, ext4_proc_root);
-
if (sbi->s_proc) {
- for (p = proc_files; p->name; p++)
- proc_create_data(p->name, S_IRUGO, sbi->s_proc,
- p->fops, sb);
+ proc_create_single_data("options", S_IRUGO, sbi->s_proc,
+ ext4_seq_options_show, sb);
+ proc_create_single_data("es_shrinker_info", S_IRUGO,
+ sbi->s_proc, ext4_seq_es_shrinker_info_show,
+ sb);
+ proc_create_seq_data("mb_groups", S_IRUGO, sbi->s_proc,
+ &ext4_mb_seq_groups_ops, sb);
}
return 0;
}
@@ -404,13 +377,9 @@ int ext4_register_sysfs(struct super_block *sb)
void ext4_unregister_sysfs(struct super_block *sb)
{
struct ext4_sb_info *sbi = EXT4_SB(sb);
- const struct ext4_proc_files *p;
- if (sbi->s_proc) {
- for (p = proc_files; p->name; p++)
- remove_proc_entry(p->name, sbi->s_proc);
- remove_proc_entry(sb->s_id, ext4_proc_root);
- }
+ if (sbi->s_proc)
+ remove_proc_subtree(sb->s_id, ext4_proc_root);
kobject_del(&sbi->s_kobj);
}
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 20/39] afs: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/afs/proc.c | 134 ++++++--------------------------------------------
1 file changed, 15 insertions(+), 119 deletions(-)
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 839a22280606..3aad32762989 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -62,7 +62,6 @@ static const struct file_operations afs_proc_rootcell_fops = {
.llseek = no_llseek,
};
-static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file);
static void *afs_proc_cell_volumes_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v,
loff_t *pos);
@@ -76,15 +75,6 @@ static const struct seq_operations afs_proc_cell_volumes_ops = {
.show = afs_proc_cell_volumes_show,
};
-static const struct file_operations afs_proc_cell_volumes_fops = {
- .open = afs_proc_cell_volumes_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int afs_proc_cell_vlservers_open(struct inode *inode,
- struct file *file);
static void *afs_proc_cell_vlservers_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_cell_vlservers_next(struct seq_file *p, void *v,
loff_t *pos);
@@ -98,14 +88,6 @@ static const struct seq_operations afs_proc_cell_vlservers_ops = {
.show = afs_proc_cell_vlservers_show,
};
-static const struct file_operations afs_proc_cell_vlservers_fops = {
- .open = afs_proc_cell_vlservers_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int afs_proc_servers_open(struct inode *inode, struct file *file);
static void *afs_proc_servers_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_servers_next(struct seq_file *p, void *v,
loff_t *pos);
@@ -119,13 +101,6 @@ static const struct seq_operations afs_proc_servers_ops = {
.show = afs_proc_servers_show,
};
-static const struct file_operations afs_proc_servers_fops = {
- .open = afs_proc_servers_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
static int afs_proc_sysname_open(struct inode *inode, struct file *file);
static int afs_proc_sysname_release(struct inode *inode, struct file *file);
static void *afs_proc_sysname_start(struct seq_file *p, loff_t *pos);
@@ -152,7 +127,7 @@ static const struct file_operations afs_proc_sysname_fops = {
.write = afs_proc_sysname_write,
};
-static const struct file_operations afs_proc_stats_fops;
+static int afs_proc_stats_show(struct seq_file *m, void *v);
/*
* initialise the /proc/fs/afs/ directory
@@ -167,8 +142,8 @@ int afs_proc_init(struct afs_net *net)
if (!proc_create("cells", 0644, net->proc_afs, &afs_proc_cells_fops) ||
!proc_create("rootcell", 0644, net->proc_afs, &afs_proc_rootcell_fops) ||
- !proc_create("servers", 0644, net->proc_afs, &afs_proc_servers_fops) ||
- !proc_create("stats", 0644, net->proc_afs, &afs_proc_stats_fops) ||
+ !proc_create_seq("servers", 0644, net->proc_afs, &afs_proc_servers_ops) ||
+ !proc_create_single("stats", 0644, net->proc_afs, afs_proc_stats_show) ||
!proc_create("sysname", 0644, net->proc_afs, &afs_proc_sysname_fops))
goto error_tree;
@@ -196,16 +171,7 @@ void afs_proc_cleanup(struct afs_net *net)
*/
static int afs_proc_cells_open(struct inode *inode, struct file *file)
{
- struct seq_file *m;
- int ret;
-
- ret = seq_open(file, &afs_proc_cells_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = PDE_DATA(inode);
- return 0;
+ return seq_open(file, &afs_proc_cells_ops);
}
/*
@@ -430,10 +396,11 @@ int afs_proc_cell_setup(struct afs_net *net, struct afs_cell *cell)
if (!dir)
goto error_dir;
- if (!proc_create_data("vlservers", 0, dir,
- &afs_proc_cell_vlservers_fops, cell) ||
- !proc_create_data("volumes", 0, dir,
- &afs_proc_cell_volumes_fops, cell))
+ if (!proc_create_seq_data("vlservers", 0, dir,
+ &afs_proc_cell_vlservers_ops, cell))
+ goto error_tree;
+ if (!proc_create_seq_data("volumes", 0, dir, &afs_proc_cell_volumes_ops,
+ cell))
goto error_tree;
_leave(" = 0");
@@ -458,29 +425,6 @@ void afs_proc_cell_remove(struct afs_net *net, struct afs_cell *cell)
_leave("");
}
-/*
- * open "/proc/fs/afs/<cell>/volumes" which provides a summary of extant cells
- */
-static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file)
-{
- struct afs_cell *cell;
- struct seq_file *m;
- int ret;
-
- cell = PDE_DATA(inode);
- if (!cell)
- return -ENOENT;
-
- ret = seq_open(file, &afs_proc_cell_volumes_ops);
- if (ret < 0)
- return ret;
-
- m = file->private_data;
- m->private = cell;
-
- return 0;
-}
-
/*
* set up the iterator to start reading from the cells list and return the
* first item
@@ -488,7 +432,7 @@ static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file)
static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos)
__acquires(cell->proc_lock)
{
- struct afs_cell *cell = m->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(m->file));
_enter("cell=%p pos=%Ld", cell, *_pos);
@@ -502,7 +446,7 @@ static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos)
static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v,
loff_t *_pos)
{
- struct afs_cell *cell = p->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(p->file));
_enter("cell=%p pos=%Ld", cell, *_pos);
return seq_list_next(v, &cell->proc_volumes, _pos);
@@ -514,7 +458,7 @@ static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v,
static void afs_proc_cell_volumes_stop(struct seq_file *p, void *v)
__releases(cell->proc_lock)
{
- struct afs_cell *cell = p->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(p->file));
read_unlock(&cell->proc_lock);
}
@@ -530,7 +474,7 @@ static const char afs_vol_types[3][3] = {
*/
static int afs_proc_cell_volumes_show(struct seq_file *m, void *v)
{
- struct afs_cell *cell = m->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(m->file));
struct afs_volume *vol = list_entry(v, struct afs_volume, proc_link);
/* Display header on line 1 */
@@ -546,30 +490,6 @@ static int afs_proc_cell_volumes_show(struct seq_file *m, void *v)
return 0;
}
-/*
- * open "/proc/fs/afs/<cell>/vlservers" which provides a list of volume
- * location server
- */
-static int afs_proc_cell_vlservers_open(struct inode *inode, struct file *file)
-{
- struct afs_cell *cell;
- struct seq_file *m;
- int ret;
-
- cell = PDE_DATA(inode);
- if (!cell)
- return -ENOENT;
-
- ret = seq_open(file, &afs_proc_cell_vlservers_ops);
- if (ret<0)
- return ret;
-
- m = file->private_data;
- m->private = cell;
-
- return 0;
-}
-
/*
* set up the iterator to start reading from the cells list and return the
* first item
@@ -578,7 +498,7 @@ static void *afs_proc_cell_vlservers_start(struct seq_file *m, loff_t *_pos)
__acquires(rcu)
{
struct afs_addr_list *alist;
- struct afs_cell *cell = m->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(m->file));
loff_t pos = *_pos;
rcu_read_lock();
@@ -603,7 +523,7 @@ static void *afs_proc_cell_vlservers_next(struct seq_file *p, void *v,
loff_t *_pos)
{
struct afs_addr_list *alist;
- struct afs_cell *cell = p->private;
+ struct afs_cell *cell = PDE_DATA(file_inode(p->file));
loff_t pos;
alist = rcu_dereference(cell->vl_addrs);
@@ -643,15 +563,6 @@ static int afs_proc_cell_vlservers_show(struct seq_file *m, void *v)
return 0;
}
-/*
- * open "/proc/fs/afs/servers" which provides a summary of active
- * servers
- */
-static int afs_proc_servers_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &afs_proc_servers_ops);
-}
-
/*
* Set up the iterator to start reading from the server list and return the
* first item.
@@ -931,18 +842,3 @@ static int afs_proc_stats_show(struct seq_file *m, void *v)
atomic_long_read(&net->n_store_bytes));
return 0;
}
-
-/*
- * Open "/proc/fs/afs/stats" to allow reading of the stat counters.
- */
-static int afs_proc_stats_open(struct inode *inode, struct file *file)
-{
- return single_open(file, afs_proc_stats_show, NULL);
-}
-
-static const struct file_operations afs_proc_stats_fops = {
- .open = afs_proc_stats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 18/39] megaraid: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_single.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/scsi/megaraid.c | 140 +++++++++++-----------------------------
drivers/scsi/megaraid.h | 12 ----
2 files changed, 36 insertions(+), 116 deletions(-)
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 7195cff51d4c..91f5e2c68dbc 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -2731,53 +2731,6 @@ proc_show_rdrv_40(struct seq_file *m, void *v)
return proc_show_rdrv(m, m->private, 30, 39);
}
-
-/*
- * seq_file wrappers for procfile show routines.
- */
-static int mega_proc_open(struct inode *inode, struct file *file)
-{
- adapter_t *adapter = proc_get_parent_data(inode);
- int (*show)(struct seq_file *, void *) = PDE_DATA(inode);
-
- return single_open(file, show, adapter);
-}
-
-static const struct file_operations mega_proc_fops = {
- .open = mega_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * Table of proc files we need to create.
- */
-struct mega_proc_file {
- const char *name;
- unsigned short ptr_offset;
- int (*show) (struct seq_file *m, void *v);
-};
-
-static const struct mega_proc_file mega_proc_files[] = {
- { "config", offsetof(adapter_t, proc_read), proc_show_config },
- { "stat", offsetof(adapter_t, proc_stat), proc_show_stat },
- { "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox },
-#if MEGA_HAVE_ENH_PROC
- { "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate },
- { "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery },
- { "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 },
- { "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 },
- { "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 },
- { "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 },
- { "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 },
- { "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 },
- { "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 },
- { "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 },
-#endif
- { NULL }
-};
-
/**
* mega_create_proc_entry()
* @index - index in soft state array
@@ -2788,31 +2741,45 @@ static const struct mega_proc_file mega_proc_files[] = {
static void
mega_create_proc_entry(int index, struct proc_dir_entry *parent)
{
- const struct mega_proc_file *f;
- adapter_t *adapter = hba_soft_state[index];
- struct proc_dir_entry *dir, *de, **ppde;
- u8 string[16];
+ adapter_t *adapter = hba_soft_state[index];
+ struct proc_dir_entry *dir;
+ u8 string[16];
sprintf(string, "hba%d", adapter->host->host_no);
-
- dir = adapter->controller_proc_dir_entry =
- proc_mkdir_data(string, 0, parent, adapter);
- if(!dir) {
+ dir = proc_mkdir_data(string, 0, parent, adapter);
+ if (!dir) {
dev_warn(&adapter->dev->dev, "proc_mkdir failed\n");
return;
}
- for (f = mega_proc_files; f->name; f++) {
- de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops,
- f->show);
- if (!de) {
- dev_warn(&adapter->dev->dev, "proc_create failed\n");
- return;
- }
-
- ppde = (void *)adapter + f->ptr_offset;
- *ppde = de;
- }
+ proc_create_single_data("config", S_IRUSR, dir,
+ proc_show_config, adapter);
+ proc_create_single_data("stat", S_IRUSR, dir,
+ proc_show_stat, adapter);
+ proc_create_single_data("mailbox", S_IRUSR, dir,
+ proc_show_mbox, adapter);
+#if MEGA_HAVE_ENH_PROC
+ proc_create_single_data("rebuild-rate", S_IRUSR, dir,
+ proc_show_rebuild_rate, adapter);
+ proc_create_single_data("battery-status", S_IRUSR, dir,
+ proc_show_battery, adapter);
+ proc_create_single_data("diskdrives-ch0", S_IRUSR, dir,
+ proc_show_pdrv_ch0, adapter);
+ proc_create_single_data("diskdrives-ch1", S_IRUSR, dir,
+ proc_show_pdrv_ch1, adapter);
+ proc_create_single_data("diskdrives-ch2", S_IRUSR, dir,
+ proc_show_pdrv_ch2, adapter);
+ proc_create_single_data("diskdrives-ch3", S_IRUSR, dir,
+ proc_show_pdrv_ch3, adapter);
+ proc_create_single_data("raiddrives-0-9", S_IRUSR, dir,
+ proc_show_rdrv_10, adapter);
+ proc_create_single_data("raiddrives-10-19", S_IRUSR, dir,
+ proc_show_rdrv_20, adapter);
+ proc_create_single_data("raiddrives-20-29", S_IRUSR, dir,
+ proc_show_rdrv_30, adapter);
+ proc_create_single_data("raiddrives-30-39", S_IRUSR, dir,
+ proc_show_rdrv_40, adapter);
+#endif
}
#else
@@ -4580,6 +4547,7 @@ megaraid_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
adapter_t *adapter = (adapter_t *)host->hostdata;
+ char buf[12] = { 0 };
scsi_remove_host(host);
@@ -4594,44 +4562,8 @@ megaraid_remove_one(struct pci_dev *pdev)
mega_free_sgl(adapter);
-#ifdef CONFIG_PROC_FS
- if (adapter->controller_proc_dir_entry) {
- remove_proc_entry("stat", adapter->controller_proc_dir_entry);
- remove_proc_entry("config",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("mailbox",
- adapter->controller_proc_dir_entry);
-#if MEGA_HAVE_ENH_PROC
- remove_proc_entry("rebuild-rate",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("battery-status",
- adapter->controller_proc_dir_entry);
-
- remove_proc_entry("diskdrives-ch0",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("diskdrives-ch1",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("diskdrives-ch2",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("diskdrives-ch3",
- adapter->controller_proc_dir_entry);
-
- remove_proc_entry("raiddrives-0-9",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("raiddrives-10-19",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("raiddrives-20-29",
- adapter->controller_proc_dir_entry);
- remove_proc_entry("raiddrives-30-39",
- adapter->controller_proc_dir_entry);
-#endif
- {
- char buf[12] = { 0 };
- sprintf(buf, "hba%d", adapter->host->host_no);
- remove_proc_entry(buf, mega_proc_dir_entry);
- }
- }
-#endif
+ sprintf(buf, "hba%d", adapter->host->host_no);
+ remove_proc_subtree(buf, mega_proc_dir_entry);
pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE,
adapter->mega_buffer, adapter->buf_dma_handle);
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
index 21eba2fd465a..18e85d9267ff 100644
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -814,18 +814,6 @@ typedef struct {
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *controller_proc_dir_entry;
- struct proc_dir_entry *proc_read;
- struct proc_dir_entry *proc_stat;
- struct proc_dir_entry *proc_mbox;
-
-#if MEGA_HAVE_ENH_PROC
- struct proc_dir_entry *proc_rr;
- struct proc_dir_entry *proc_battery;
-#define MAX_PROC_CHANNELS 4
- struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
- struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
-#endif
-
#endif
int has_64bit_addr; /* are we using 64-bit addressing */
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 17/39] sgi-gru: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/misc/sgi-gru/gruprocfs.c | 81 ++++++--------------------------
1 file changed, 14 insertions(+), 67 deletions(-)
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 4f7635922394..42ea2eccaee9 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -270,16 +270,6 @@ static int options_open(struct inode *inode, struct file *file)
return single_open(file, options_show, NULL);
}
-static int cch_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &cch_seq_ops);
-}
-
-static int gru_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &gru_seq_ops);
-}
-
/* *INDENT-OFF* */
static const struct file_operations statistics_fops = {
.open = statistics_open,
@@ -305,73 +295,30 @@ static const struct file_operations options_fops = {
.release = single_release,
};
-static const struct file_operations cch_fops = {
- .open = cch_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-static const struct file_operations gru_fops = {
- .open = gru_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static struct proc_entry {
- char *name;
- umode_t mode;
- const struct file_operations *fops;
- struct proc_dir_entry *entry;
-} proc_files[] = {
- {"statistics", 0644, &statistics_fops},
- {"mcs_statistics", 0644, &mcs_statistics_fops},
- {"debug_options", 0644, &options_fops},
- {"cch_status", 0444, &cch_fops},
- {"gru_status", 0444, &gru_fops},
- {NULL}
-};
-/* *INDENT-ON* */
-
static struct proc_dir_entry *proc_gru __read_mostly;
-static int create_proc_file(struct proc_entry *p)
-{
- p->entry = proc_create(p->name, p->mode, proc_gru, p->fops);
- if (!p->entry)
- return -1;
- return 0;
-}
-
-static void delete_proc_files(void)
-{
- struct proc_entry *p;
-
- if (proc_gru) {
- for (p = proc_files; p->name; p++)
- if (p->entry)
- remove_proc_entry(p->name, proc_gru);
- proc_remove(proc_gru);
- }
-}
-
int gru_proc_init(void)
{
- struct proc_entry *p;
-
proc_gru = proc_mkdir("sgi_uv/gru", NULL);
-
- for (p = proc_files; p->name; p++)
- if (create_proc_file(p))
- goto err;
+ if (!proc_gru)
+ return -1;
+ if (!proc_create("statistics", 0644, proc_gru, &statistics_fops))
+ goto err;
+ if (!proc_create("mcs_statistics", 0644, proc_gru, &mcs_statistics_fops))
+ goto err;
+ if (!proc_create("debug_options", 0644, proc_gru, &options_fops))
+ goto err;
+ if (!proc_create_seq("cch_status", 0444, proc_gru, &cch_seq_ops))
+ goto err;
+ if (!proc_create_seq("gru_status", 0444, proc_gru, &gru_seq_ops))
+ goto err;
return 0;
-
err:
- delete_proc_files();
+ remove_proc_subtree("sgi_uv/gru", NULL);
return -1;
}
void gru_proc_exit(void)
{
- delete_proc_files();
+ remove_proc_subtree("sgi_uv/gru", NULL);
}
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 16/39] ipmi: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup instead
of a hand rolled list of proc entries, unwind the registration loop into
individual calls. Switch to use proc_create_single to further simplify
the code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/char/ipmi/ipmi_msghandler.c | 150 +++++-----------------------
drivers/char/ipmi/ipmi_si_intf.c | 47 +--------
drivers/char/ipmi/ipmi_ssif.c | 34 +------
include/linux/ipmi_smi.h | 8 +-
4 files changed, 33 insertions(+), 206 deletions(-)
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 361148938801..c18db313e4c4 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -247,13 +247,6 @@ struct ipmi_my_addrinfo {
unsigned char lun;
};
-#ifdef CONFIG_IPMI_PROC_INTERFACE
-struct ipmi_proc_entry {
- char *name;
- struct ipmi_proc_entry *next;
-};
-#endif
-
/*
* Note that the product id, manufacturer id, guid, and device id are
* immutable in this structure, so dyn_mutex is not required for
@@ -430,10 +423,6 @@ struct ipmi_smi {
void *send_info;
#ifdef CONFIG_IPMI_PROC_INTERFACE
- /* A list of proc entries for this interface. */
- struct mutex proc_entry_lock;
- struct ipmi_proc_entry *proc_entries;
-
struct proc_dir_entry *proc_dir;
char proc_dir_name[10];
#endif
@@ -2358,18 +2347,6 @@ static int smi_ipmb_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_ipmb_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_ipmb_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_ipmb_proc_ops = {
- .open = smi_ipmb_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int smi_version_proc_show(struct seq_file *m, void *v)
{
ipmi_smi_t intf = m->private;
@@ -2387,18 +2364,6 @@ static int smi_version_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_version_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_version_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_version_proc_ops = {
- .open = smi_version_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int smi_stats_proc_show(struct seq_file *m, void *v)
{
ipmi_smi_t intf = m->private;
@@ -2462,95 +2427,45 @@ static int smi_stats_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_stats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_stats_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_stats_proc_ops = {
- .open = smi_stats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
- const struct file_operations *proc_ops,
- void *data)
+ int (*show)(struct seq_file *, void *), void *data)
{
- int rv = 0;
- struct proc_dir_entry *file;
- struct ipmi_proc_entry *entry;
-
- /* Create a list element. */
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
- if (!entry)
+ if (!proc_create_single_data(name, 0, smi->proc_dir, show, data))
return -ENOMEM;
- entry->name = kstrdup(name, GFP_KERNEL);
- if (!entry->name) {
- kfree(entry);
- return -ENOMEM;
- }
-
- file = proc_create_data(name, 0, smi->proc_dir, proc_ops, data);
- if (!file) {
- kfree(entry->name);
- kfree(entry);
- rv = -ENOMEM;
- } else {
- mutex_lock(&smi->proc_entry_lock);
- /* Stick it on the list. */
- entry->next = smi->proc_entries;
- smi->proc_entries = entry;
- mutex_unlock(&smi->proc_entry_lock);
- }
-
- return rv;
+ return 0;
}
EXPORT_SYMBOL(ipmi_smi_add_proc_entry);
static int add_proc_entries(ipmi_smi_t smi, int num)
{
- int rv = 0;
-
sprintf(smi->proc_dir_name, "%d", num);
smi->proc_dir = proc_mkdir(smi->proc_dir_name, proc_ipmi_root);
if (!smi->proc_dir)
- rv = -ENOMEM;
-
- if (rv == 0)
- rv = ipmi_smi_add_proc_entry(smi, "stats",
- &smi_stats_proc_ops,
- smi);
-
- if (rv == 0)
- rv = ipmi_smi_add_proc_entry(smi, "ipmb",
- &smi_ipmb_proc_ops,
- smi);
-
- if (rv == 0)
- rv = ipmi_smi_add_proc_entry(smi, "version",
- &smi_version_proc_ops,
- smi);
-
- return rv;
+ return -ENOMEM;
+ if (!proc_create_single_data("stats", 0, smi->proc_dir,
+ smi_stats_proc_show, smi))
+ return -ENOMEM;
+ if (!proc_create_single_data("ipmb", 0, smi->proc_dir,
+ smi_ipmb_proc_show, smi))
+ return -ENOMEM;
+ if (!proc_create_single_data("version", 0, smi->proc_dir,
+ smi_version_proc_show, smi))
+ return -ENOMEM;
+ return 0;
}
static void remove_proc_entries(ipmi_smi_t smi)
{
- struct ipmi_proc_entry *entry;
-
- mutex_lock(&smi->proc_entry_lock);
- while (smi->proc_entries) {
- entry = smi->proc_entries;
- smi->proc_entries = entry->next;
-
- remove_proc_entry(entry->name, smi->proc_dir);
- kfree(entry->name);
- kfree(entry);
- }
- mutex_unlock(&smi->proc_entry_lock);
- remove_proc_entry(smi->proc_dir_name, proc_ipmi_root);
+ if (smi->proc_dir)
+ remove_proc_subtree(smi->proc_dir_name, proc_ipmi_root);
+}
+#else
+static int add_proc_entries(ipmi_smi_t smi, int num)
+{
+ return 0;
+}
+static void remove_proc_entries(ipmi_smi_t smi)
+{
}
#endif /* CONFIG_IPMI_PROC_INTERFACE */
@@ -3386,9 +3301,6 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
intf->seq_table[j].seqid = 0;
}
intf->curr_seq = 0;
-#ifdef CONFIG_IPMI_PROC_INTERFACE
- mutex_init(&intf->proc_entry_lock);
-#endif
spin_lock_init(&intf->waiting_rcv_msgs_lock);
INIT_LIST_HEAD(&intf->waiting_rcv_msgs);
tasklet_init(&intf->recv_tasklet,
@@ -3410,10 +3322,6 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
for (i = 0; i < IPMI_NUM_STATS; i++)
atomic_set(&intf->stats[i], 0);
-#ifdef CONFIG_IPMI_PROC_INTERFACE
- intf->proc_dir = NULL;
-#endif
-
mutex_lock(&smi_watchers_mutex);
mutex_lock(&ipmi_interfaces_mutex);
/* Look for a hole in the numbers. */
@@ -3448,17 +3356,11 @@ int ipmi_register_smi(const struct ipmi_smi_handlers *handlers,
if (rv)
goto out;
-#ifdef CONFIG_IPMI_PROC_INTERFACE
rv = add_proc_entries(intf, i);
-#endif
-
out:
if (rv) {
ipmi_bmc_unregister(intf);
-#ifdef CONFIG_IPMI_PROC_INTERFACE
- if (intf->proc_dir)
- remove_proc_entries(intf);
-#endif
+ remove_proc_entries(intf);
intf->handlers = NULL;
list_del_rcu(&intf->link);
mutex_unlock(&ipmi_interfaces_mutex);
@@ -3563,9 +3465,7 @@ int ipmi_unregister_smi(ipmi_smi_t intf)
intf->handlers = NULL;
mutex_unlock(&ipmi_interfaces_mutex);
-#ifdef CONFIG_IPMI_PROC_INTERFACE
remove_proc_entries(intf);
-#endif
ipmi_bmc_unregister(intf);
/*
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index ff870aa91cfe..7acc8cbf8d6f 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1602,18 +1602,6 @@ static int smi_type_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_type_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_type_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_type_proc_ops = {
- .open = smi_type_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int smi_si_stats_proc_show(struct seq_file *m, void *v)
{
struct smi_info *smi = m->private;
@@ -1645,18 +1633,6 @@ static int smi_si_stats_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_si_stats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_si_stats_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_si_stats_proc_ops = {
- .open = smi_si_stats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int smi_params_proc_show(struct seq_file *m, void *v)
{
struct smi_info *smi = m->private;
@@ -1674,18 +1650,6 @@ static int smi_params_proc_show(struct seq_file *m, void *v)
return 0;
}
-
-static int smi_params_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_params_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_params_proc_ops = {
- .open = smi_params_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
#define IPMI_SI_ATTR(name) \
@@ -2182,10 +2146,8 @@ static int try_smi_init(struct smi_info *new_smi)
goto out_err;
}
-#ifdef CONFIG_IPMI_PROC_INTERFACE
rv = ipmi_smi_add_proc_entry(new_smi->intf, "type",
- &smi_type_proc_ops,
- new_smi);
+ smi_type_proc_show, new_smi);
if (rv) {
dev_err(new_smi->io.dev,
"Unable to create proc entry: %d\n", rv);
@@ -2193,8 +2155,7 @@ static int try_smi_init(struct smi_info *new_smi)
}
rv = ipmi_smi_add_proc_entry(new_smi->intf, "si_stats",
- &smi_si_stats_proc_ops,
- new_smi);
+ smi_si_stats_proc_show, new_smi);
if (rv) {
dev_err(new_smi->io.dev,
"Unable to create proc entry: %d\n", rv);
@@ -2202,14 +2163,12 @@ static int try_smi_init(struct smi_info *new_smi)
}
rv = ipmi_smi_add_proc_entry(new_smi->intf, "params",
- &smi_params_proc_ops,
- new_smi);
+ smi_params_proc_show, new_smi);
if (rv) {
dev_err(new_smi->io.dev,
"Unable to create proc entry: %d\n", rv);
goto out_err;
}
-#endif
/* Don't increment till we know we have succeeded. */
smi_num++;
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 35a82f4bfd78..57f6116a17b2 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1349,18 +1349,6 @@ static int smi_type_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int smi_type_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_type_proc_show, inode->i_private);
-}
-
-static const struct file_operations smi_type_proc_ops = {
- .open = smi_type_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int smi_stats_proc_show(struct seq_file *m, void *v)
{
struct ssif_info *ssif_info = m->private;
@@ -1393,18 +1381,6 @@ static int smi_stats_proc_show(struct seq_file *m, void *v)
ssif_get_stat(ssif_info, alerts));
return 0;
}
-
-static int smi_stats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, smi_stats_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations smi_stats_proc_ops = {
- .open = smi_stats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
#endif
static int strcmp_nospace(char *s1, char *s2)
@@ -1740,23 +1716,19 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
goto out_remove_attr;
}
-#ifdef CONFIG_IPMI_PROC_INTERFACE
rv = ipmi_smi_add_proc_entry(ssif_info->intf, "type",
- &smi_type_proc_ops,
- ssif_info);
+ smi_type_proc_show, ssif_info);
if (rv) {
pr_err(PFX "Unable to create proc entry: %d\n", rv);
goto out_err_unreg;
}
rv = ipmi_smi_add_proc_entry(ssif_info->intf, "ssif_stats",
- &smi_stats_proc_ops,
- ssif_info);
+ smi_stats_proc_show, ssif_info);
if (rv) {
pr_err(PFX "Unable to create proc entry: %d\n", rv);
goto out_err_unreg;
}
-#endif
out:
if (rv) {
@@ -1775,10 +1747,8 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
kfree(resp);
return rv;
-#ifdef CONFIG_IPMI_PROC_INTERFACE
out_err_unreg:
ipmi_unregister_smi(ssif_info->intf);
-#endif
out_remove_attr:
device_remove_group(&ssif_info->client->dev, &ipmi_ssif_dev_attr_group);
diff --git a/include/linux/ipmi_smi.h b/include/linux/ipmi_smi.h
index af457b5a689e..78d9fd480fe8 100644
--- a/include/linux/ipmi_smi.h
+++ b/include/linux/ipmi_smi.h
@@ -223,12 +223,10 @@ static inline void ipmi_free_smi_msg(struct ipmi_smi_msg *msg)
}
#ifdef CONFIG_IPMI_PROC_INTERFACE
-/* Allow the lower layer to add things to the proc filesystem
- directory for this interface. Note that the entry will
- automatically be dstroyed when the interface is destroyed. */
int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
- const struct file_operations *proc_ops,
- void *data);
+ int (*show)(struct seq_file *, void *), void *data);
+#else
+#define ipmi_smi_add_proc_entry(smi, name, show, data) 0
#endif
#endif /* __LINUX_IPMI_SMI_H */
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 15/39] acpi/battery: simplify procfs code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Use remove_proc_subtree to remove the whole subtree on cleanup, and
unwind the registration loop into individual calls. Switch to use
proc_create_seq where applicable.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/acpi/battery.c | 121 +++++++++--------------------------------
1 file changed, 26 insertions(+), 95 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index bdb24d636d9a..76550689ce10 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -81,14 +81,6 @@ MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
#ifdef CONFIG_ACPI_PROCFS_POWER
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-
-enum acpi_battery_files {
- info_tag = 0,
- state_tag,
- alarm_tag,
- ACPI_BATTERY_NUMFILES,
-};
-
#endif
static const struct acpi_device_id battery_device_ids[] = {
@@ -985,9 +977,10 @@ static const char *acpi_battery_units(const struct acpi_battery *battery)
"mA" : "mW";
}
-static int acpi_battery_print_info(struct seq_file *seq, int result)
+static int acpi_battery_info_proc_show(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
+ int result = acpi_battery_update(battery, false);
if (result)
goto end;
@@ -1041,9 +1034,10 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
return result;
}
-static int acpi_battery_print_state(struct seq_file *seq, int result)
+static int acpi_battery_state_proc_show(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
+ int result = acpi_battery_update(battery, false);
if (result)
goto end;
@@ -1088,9 +1082,10 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
return result;
}
-static int acpi_battery_print_alarm(struct seq_file *seq, int result)
+static int acpi_battery_alarm_proc_show(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
+ int result = acpi_battery_update(battery, false);
if (result)
goto end;
@@ -1142,82 +1137,22 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
return result;
}
-typedef int(*print_func)(struct seq_file *seq, int result);
-
-static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
- acpi_battery_print_info,
- acpi_battery_print_state,
- acpi_battery_print_alarm,
-};
-
-static int acpi_battery_read(int fid, struct seq_file *seq)
+static int acpi_battery_alarm_proc_open(struct inode *inode, struct file *file)
{
- struct acpi_battery *battery = seq->private;
- int result = acpi_battery_update(battery, false);
- return acpi_print_funcs[fid](seq, result);
+ return single_open(file, acpi_battery_alarm_proc_show, PDE_DATA(inode));
}
-#define DECLARE_FILE_FUNCTIONS(_name) \
-static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
-{ \
- return acpi_battery_read(_name##_tag, seq); \
-} \
-static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
-{ \
- return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \
-}
-
-DECLARE_FILE_FUNCTIONS(info);
-DECLARE_FILE_FUNCTIONS(state);
-DECLARE_FILE_FUNCTIONS(alarm);
-
-#undef DECLARE_FILE_FUNCTIONS
-
-#define FILE_DESCRIPTION_RO(_name) \
- { \
- .name = __stringify(_name), \
- .mode = S_IRUGO, \
- .ops = { \
- .open = acpi_battery_##_name##_open_fs, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
- .owner = THIS_MODULE, \
- }, \
- }
-
-#define FILE_DESCRIPTION_RW(_name) \
- { \
- .name = __stringify(_name), \
- .mode = S_IFREG | S_IRUGO | S_IWUSR, \
- .ops = { \
- .open = acpi_battery_##_name##_open_fs, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .write = acpi_battery_write_##_name, \
- .release = single_release, \
- .owner = THIS_MODULE, \
- }, \
- }
-
-static const struct battery_file {
- struct file_operations ops;
- umode_t mode;
- const char *name;
-} acpi_battery_file[] = {
- FILE_DESCRIPTION_RO(info),
- FILE_DESCRIPTION_RO(state),
- FILE_DESCRIPTION_RW(alarm),
+static const struct file_operations acpi_battery_alarm_fops = {
+ .owner = THIS_MODULE,
+ .open = acpi_battery_alarm_proc_open,
+ .read = seq_read,
+ .write = acpi_battery_write_alarm,
+ .llseek = seq_lseek,
+ .release = single_release,
};
-#undef FILE_DESCRIPTION_RO
-#undef FILE_DESCRIPTION_RW
-
static int acpi_battery_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
- int i;
-
printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded,"
" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
if (!acpi_device_dir(device)) {
@@ -1227,28 +1162,24 @@ static int acpi_battery_add_fs(struct acpi_device *device)
return -ENODEV;
}
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
- entry = proc_create_data(acpi_battery_file[i].name,
- acpi_battery_file[i].mode,
- acpi_device_dir(device),
- &acpi_battery_file[i].ops,
- acpi_driver_data(device));
- if (!entry)
- return -ENODEV;
- }
+ if (!proc_create_single_data("info", S_IRUGO, acpi_device_dir(device),
+ acpi_battery_info_proc_show, acpi_driver_data(device)))
+ return -ENODEV;
+ if (!proc_create_single_data("state", S_IRUGO, acpi_device_dir(device),
+ acpi_battery_state_proc_show, acpi_driver_data(device)))
+ return -ENODEV;
+ if (!proc_create_data("alarm", S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device), &acpi_battery_alarm_fops,
+ acpi_driver_data(device)))
+ return -ENODEV;
return 0;
}
static void acpi_battery_remove_fs(struct acpi_device *device)
{
- int i;
if (!acpi_device_dir(device))
return;
- for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
- remove_proc_entry(acpi_battery_file[i].name,
- acpi_device_dir(device));
-
- remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
+ remove_proc_subtree(acpi_device_bid(device), acpi_battery_dir);
acpi_device_dir(device) = NULL;
}
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
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^ permalink raw reply related
* [PATCH 14/39] proc: introduce proc_create_net_single
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Variant of proc_create_data that directly take a seq_file show
callback and deals with network namespaces in ->open and ->release.
All callers of proc_create + single_open_net converted over, and
single_{open,release}_net are removed entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/proc/proc_net.c | 47 +++++++-----
include/linux/proc_fs.h | 4 ++
include/linux/seq_file_net.h | 7 +-
net/can/bcm.c | 16 +----
net/can/proc.c | 127 ++++++---------------------------
net/ipv4/fib_trie.c | 16 +----
net/ipv4/proc.c | 48 ++-----------
net/ipv6/proc.c | 31 ++------
net/ipv6/route.c | 15 +---
net/kcm/kcmproc.c | 16 +----
net/netfilter/ipvs/ip_vs_ctl.c | 31 ++------
net/sctp/proc.c | 17 +----
net/xfrm/xfrm_proc.c | 16 +----
13 files changed, 84 insertions(+), 307 deletions(-)
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 9a1948d58f10..518b39025b23 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -93,37 +93,48 @@ struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
}
EXPORT_SYMBOL_GPL(proc_create_net_data);
-int single_open_net(struct inode *inode, struct file *file,
- int (*show)(struct seq_file *, void *))
+static int single_open_net(struct inode *inode, struct file *file)
{
- int err;
+ struct proc_dir_entry *de = PDE(inode);
struct net *net;
+ int err;
- err = -ENXIO;
net = get_proc_net(inode);
- if (net == NULL)
- goto err_net;
-
- err = single_open(file, show, net);
- if (err < 0)
- goto err_open;
-
- return 0;
+ if (!net)
+ return -ENXIO;
-err_open:
- put_net(net);
-err_net:
+ err = single_open(file, de->single_show, net);
+ if (err)
+ put_net(net);
return err;
}
-EXPORT_SYMBOL_GPL(single_open_net);
-int single_release_net(struct inode *ino, struct file *f)
+static int single_release_net(struct inode *ino, struct file *f)
{
struct seq_file *seq = f->private_data;
put_net(seq->private);
return single_release(ino, f);
}
-EXPORT_SYMBOL_GPL(single_release_net);
+
+static const struct file_operations proc_net_single_fops = {
+ .open = single_open_net,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release_net,
+};
+
+struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode,
+ struct proc_dir_entry *parent,
+ int (*show)(struct seq_file *, void *), void *data)
+{
+ struct proc_dir_entry *p;
+
+ p = proc_create_data(name, mode, parent, &proc_net_single_fops, data);
+ if (p)
+ p->single_show = show;
+ return p;
+}
+EXPORT_SYMBOL_GPL(proc_create_net_single);
static struct net *get_proc_task_net(struct inode *dir)
{
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index d58976e93ecd..84ec3cd44f8b 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -58,6 +58,9 @@ struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
size_t state_size, void *data);
#define proc_create_net(name, mode, parent, state_size, ops) \
proc_create_net_data(name, mode, parent, state_size, ops, NULL)
+struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode,
+ struct proc_dir_entry *parent,
+ int (*show)(struct seq_file *, void *), void *data);
#else /* CONFIG_PROC_FS */
@@ -97,6 +100,7 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
#define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;})
#define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
+#define proc_create_net_single(name, mode, parent, show, data) ({NULL;})
#endif /* CONFIG_PROC_FS */
diff --git a/include/linux/seq_file_net.h b/include/linux/seq_file_net.h
index 5ea18a16291a..0fdbe1ddd8d1 100644
--- a/include/linux/seq_file_net.h
+++ b/include/linux/seq_file_net.h
@@ -13,9 +13,6 @@ struct seq_net_private {
#endif
};
-int single_open_net(struct inode *, struct file *file,
- int (*show)(struct seq_file *, void *));
-int single_release_net(struct inode *, struct file *);
static inline struct net *seq_file_net(struct seq_file *seq)
{
#ifdef CONFIG_NET_NS
@@ -26,8 +23,8 @@ static inline struct net *seq_file_net(struct seq_file *seq)
}
/*
- * This one is needed for single_open_net since net is stored directly in
- * private not as a struct i.e. seq_file_net can't be used.
+ * This one is needed for proc_create_net_single since net is stored directly
+ * in private not as a struct i.e. seq_file_net can't be used.
*/
static inline struct net *seq_file_single_net(struct seq_file *seq)
{
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 8073fa14e143..6ad89f49b341 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -239,18 +239,6 @@ static int bcm_proc_show(struct seq_file *m, void *v)
seq_putc(m, '\n');
return 0;
}
-
-static int bcm_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, bcm_proc_show);
-}
-
-static const struct file_operations bcm_proc_fops = {
- .open = bcm_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
#endif /* CONFIG_PROC_FS */
/*
@@ -1606,9 +1594,9 @@ static int bcm_connect(struct socket *sock, struct sockaddr *uaddr, int len,
if (net->can.bcmproc_dir) {
/* unique socket address as filename */
sprintf(bo->procname, "%lu", sock_i_ino(sk));
- bo->bcm_proc_read = proc_create_data(bo->procname, 0644,
+ bo->bcm_proc_read = proc_create_net_single(bo->procname, 0644,
net->can.bcmproc_dir,
- &bcm_proc_fops, sk);
+ bcm_proc_show, sk);
if (!bo->bcm_proc_read) {
ret = -ENOMEM;
goto fail;
diff --git a/net/can/proc.c b/net/can/proc.c
index fde2fd55b826..70fea17bb04c 100644
--- a/net/can/proc.c
+++ b/net/can/proc.c
@@ -270,18 +270,6 @@ static int can_stats_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int can_stats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_stats_proc_show);
-}
-
-static const struct file_operations can_stats_proc_fops = {
- .open = can_stats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static int can_reset_stats_proc_show(struct seq_file *m, void *v)
{
struct net *net = m->private;
@@ -303,36 +291,12 @@ static int can_reset_stats_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int can_reset_stats_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_reset_stats_proc_show);
-}
-
-static const struct file_operations can_reset_stats_proc_fops = {
- .open = can_reset_stats_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static int can_version_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "%s\n", CAN_VERSION_STRING);
return 0;
}
-static int can_version_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_version_proc_show);
-}
-
-static const struct file_operations can_version_proc_fops = {
- .open = can_version_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static inline void can_rcvlist_proc_show_one(struct seq_file *m, int idx,
struct net_device *dev,
struct can_dev_rcv_lists *d)
@@ -373,18 +337,6 @@ static int can_rcvlist_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int can_rcvlist_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_rcvlist_proc_show);
-}
-
-static const struct file_operations can_rcvlist_proc_fops = {
- .open = can_rcvlist_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static inline void can_rcvlist_proc_show_array(struct seq_file *m,
struct net_device *dev,
struct hlist_head *rcv_array,
@@ -440,19 +392,6 @@ static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_rcvlist_sff_proc_show);
-}
-
-static const struct file_operations can_rcvlist_sff_proc_fops = {
- .open = can_rcvlist_sff_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
-
static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v)
{
struct net_device *dev;
@@ -483,18 +422,6 @@ static int can_rcvlist_eff_proc_show(struct seq_file *m, void *v)
return 0;
}
-static int can_rcvlist_eff_proc_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, can_rcvlist_eff_proc_show);
-}
-
-static const struct file_operations can_rcvlist_eff_proc_fops = {
- .open = can_rcvlist_eff_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
/*
* can_init_proc - create main CAN proc directory and procfs entries
*/
@@ -510,37 +437,29 @@ void can_init_proc(struct net *net)
}
/* own procfs entries from the AF_CAN core */
- net->can.pde_version = proc_create(CAN_PROC_VERSION, 0644,
- net->can.proc_dir,
- &can_version_proc_fops);
- net->can.pde_stats = proc_create(CAN_PROC_STATS, 0644,
- net->can.proc_dir,
- &can_stats_proc_fops);
- net->can.pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644,
- net->can.proc_dir,
- &can_reset_stats_proc_fops);
- net->can.pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644,
- net->can.proc_dir,
- &can_rcvlist_proc_fops,
- (void *)RX_ERR);
- net->can.pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644,
- net->can.proc_dir,
- &can_rcvlist_proc_fops,
- (void *)RX_ALL);
- net->can.pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644,
- net->can.proc_dir,
- &can_rcvlist_proc_fops,
- (void *)RX_FIL);
- net->can.pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644,
- net->can.proc_dir,
- &can_rcvlist_proc_fops,
- (void *)RX_INV);
- net->can.pde_rcvlist_eff = proc_create(CAN_PROC_RCVLIST_EFF, 0644,
- net->can.proc_dir,
- &can_rcvlist_eff_proc_fops);
- net->can.pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644,
- net->can.proc_dir,
- &can_rcvlist_sff_proc_fops);
+ net->can.pde_version = proc_create_net_single(CAN_PROC_VERSION, 0644,
+ net->can.proc_dir, can_version_proc_show, NULL);
+ net->can.pde_stats = proc_create_net_single(CAN_PROC_STATS, 0644,
+ net->can.proc_dir, can_stats_proc_show, NULL);
+ net->can.pde_reset_stats = proc_create_net_single(CAN_PROC_RESET_STATS,
+ 0644, net->can.proc_dir, can_reset_stats_proc_show,
+ NULL);
+ net->can.pde_rcvlist_err = proc_create_net_single(CAN_PROC_RCVLIST_ERR,
+ 0644, net->can.proc_dir, can_rcvlist_proc_show,
+ (void *)RX_ERR);
+ net->can.pde_rcvlist_all = proc_create_net_single(CAN_PROC_RCVLIST_ALL,
+ 0644, net->can.proc_dir, can_rcvlist_proc_show,
+ (void *)RX_ALL);
+ net->can.pde_rcvlist_fil = proc_create_net_single(CAN_PROC_RCVLIST_FIL,
+ 0644, net->can.proc_dir, can_rcvlist_proc_show,
+ (void *)RX_FIL);
+ net->can.pde_rcvlist_inv = proc_create_net_single(CAN_PROC_RCVLIST_INV,
+ 0644, net->can.proc_dir, can_rcvlist_proc_show,
+ (void *)RX_INV);
+ net->can.pde_rcvlist_eff = proc_create_net_single(CAN_PROC_RCVLIST_EFF,
+ 0644, net->can.proc_dir, can_rcvlist_eff_proc_show, NULL);
+ net->can.pde_rcvlist_sff = proc_create_net_single(CAN_PROC_RCVLIST_SFF,
+ 0644, net->can.proc_dir, can_rcvlist_sff_proc_show, NULL);
}
/*
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3293f04b941d..99c23a0cb8ca 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2348,18 +2348,6 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int fib_triestat_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, fib_triestat_seq_show);
-}
-
-static const struct file_operations fib_triestat_fops = {
- .open = fib_triestat_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static struct key_vector *fib_trie_get_idx(struct seq_file *seq, loff_t pos)
{
struct fib_trie_iter *iter = seq->private;
@@ -2719,8 +2707,8 @@ int __net_init fib_proc_init(struct net *net)
sizeof(struct fib_trie_iter)))
goto out1;
- if (!proc_create("fib_triestat", 0444, net->proc_net,
- &fib_triestat_fops))
+ if (!proc_create_net_single("fib_triestat", 0444, net->proc_net,
+ fib_triestat_seq_show, NULL))
goto out2;
if (!proc_create_net("route", 0444, net->proc_net, &fib_route_seq_ops,
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index a058de677e94..573e43c8ed87 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -77,18 +77,6 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int sockstat_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, sockstat_seq_show);
-}
-
-static const struct file_operations sockstat_seq_fops = {
- .open = sockstat_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
/* snmp items */
static const struct snmp_mib snmp4_ipstats_list[] = {
SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS),
@@ -460,20 +448,6 @@ static int snmp_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int snmp_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, snmp_seq_show);
-}
-
-static const struct file_operations snmp_seq_fops = {
- .open = snmp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
-
-
/*
* Output /proc/net/netstat
*/
@@ -507,26 +481,16 @@ static int netstat_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int netstat_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, netstat_seq_show);
-}
-
-static const struct file_operations netstat_seq_fops = {
- .open = netstat_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static __net_init int ip_proc_init_net(struct net *net)
{
- if (!proc_create("sockstat", 0444, net->proc_net,
- &sockstat_seq_fops))
+ if (!proc_create_net_single("sockstat", 0444, net->proc_net,
+ sockstat_seq_show, NULL))
goto out_sockstat;
- if (!proc_create("netstat", 0444, net->proc_net, &netstat_seq_fops))
+ if (!proc_create_net_single("netstat", 0444, net->proc_net,
+ netstat_seq_show, NULL))
goto out_netstat;
- if (!proc_create("snmp", 0444, net->proc_net, &snmp_seq_fops))
+ if (!proc_create_net_single("snmp", 0444, net->proc_net, snmp_seq_show,
+ NULL))
goto out_snmp;
return 0;
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index a0edf194822a..2356b4af7309 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -53,18 +53,6 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int sockstat6_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, sockstat6_seq_show);
-}
-
-static const struct file_operations sockstat6_seq_fops = {
- .open = sockstat6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static const struct snmp_mib snmp6_ipstats_list[] = {
/* ipv6 mib according to RFC 2465 */
SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
@@ -242,18 +230,6 @@ static int snmp6_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int snmp6_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, snmp6_seq_show);
-}
-
-static const struct file_operations snmp6_seq_fops = {
- .open = snmp6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
{
struct inet6_dev *idev = (struct inet6_dev *)seq->private;
@@ -302,11 +278,12 @@ int snmp6_unregister_dev(struct inet6_dev *idev)
static int __net_init ipv6_proc_init_net(struct net *net)
{
- if (!proc_create("sockstat6", 0444, net->proc_net,
- &sockstat6_seq_fops))
+ if (!proc_create_net_single("sockstat6", 0444, net->proc_net,
+ sockstat6_seq_show, NULL))
return -ENOMEM;
- if (!proc_create("snmp6", 0444, net->proc_net, &snmp6_seq_fops))
+ if (!proc_create_net_single("snmp6", 0444, net->proc_net,
+ snmp6_seq_show, NULL))
goto proc_snmp6_fail;
net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 07c4aafe7710..095ed6ae9cc9 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4869,18 +4869,6 @@ static int rt6_stats_seq_show(struct seq_file *seq, void *v)
return 0;
}
-
-static int rt6_stats_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, rt6_stats_seq_show);
-}
-
-static const struct file_operations rt6_stats_seq_fops = {
- .open = rt6_stats_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
#endif /* CONFIG_PROC_FS */
#ifdef CONFIG_SYSCTL
@@ -5087,7 +5075,8 @@ static int __net_init ip6_route_net_init_late(struct net *net)
#ifdef CONFIG_PROC_FS
proc_create_net("ipv6_route", 0, net->proc_net, &ipv6_route_seq_ops,
sizeof(struct ipv6_route_iter));
- proc_create("rt6_stats", 0444, net->proc_net, &rt6_stats_seq_fops);
+ proc_create_net_single("rt6_stats", 0444, net->proc_net,
+ rt6_stats_seq_show, NULL);
#endif
return 0;
}
diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c
index 6283ed2f43b2..370da2f80e3c 100644
--- a/net/kcm/kcmproc.c
+++ b/net/kcm/kcmproc.c
@@ -345,22 +345,10 @@ static int kcm_stats_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int kcm_stats_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, kcm_stats_seq_show);
-}
-
-static const struct file_operations kcm_stats_seq_fops = {
- .open = kcm_stats_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static int kcm_proc_init_net(struct net *net)
{
- if (!proc_create("kcm_stats", 0444, net->proc_net,
- &kcm_stats_seq_fops))
+ if (!proc_create_net_single("kcm_stats", 0444, net->proc_net,
+ kcm_stats_seq_show, NULL))
goto out_kcm_stats;
if (!proc_create_net("kcm", 0444, net->proc_net, &kcm_seq_ops,
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 5d7abe11ccb5..f5a1d3503a7c 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2141,18 +2141,6 @@ static int ip_vs_stats_show(struct seq_file *seq, void *v)
return 0;
}
-static int ip_vs_stats_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, ip_vs_stats_show);
-}
-
-static const struct file_operations ip_vs_stats_fops = {
- .open = ip_vs_stats_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v)
{
struct net *net = seq_file_single_net(seq);
@@ -2208,18 +2196,6 @@ static int ip_vs_stats_percpu_show(struct seq_file *seq, void *v)
return 0;
}
-
-static int ip_vs_stats_percpu_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, ip_vs_stats_percpu_show);
-}
-
-static const struct file_operations ip_vs_stats_percpu_fops = {
- .open = ip_vs_stats_percpu_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
#endif
/*
@@ -4027,9 +4003,10 @@ int __net_init ip_vs_control_net_init(struct netns_ipvs *ipvs)
proc_create_net("ip_vs", 0, ipvs->net->proc_net, &ip_vs_info_seq_ops,
sizeof(struct ip_vs_iter));
- proc_create("ip_vs_stats", 0, ipvs->net->proc_net, &ip_vs_stats_fops);
- proc_create("ip_vs_stats_percpu", 0, ipvs->net->proc_net,
- &ip_vs_stats_percpu_fops);
+ proc_create_net_single("ip_vs_stats", 0, ipvs->net->proc_net,
+ ip_vs_stats_show, NULL);
+ proc_create_net_single("ip_vs_stats_percpu", 0, ipvs->net->proc_net,
+ ip_vs_stats_percpu_show, NULL);
if (ip_vs_control_net_init_sysctl(ipvs))
goto err;
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 009c185b71eb..ef5c9a82d4e8 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -88,19 +88,6 @@ static int sctp_snmp_seq_show(struct seq_file *seq, void *v)
return 0;
}
-/* Initialize the seq file operations for 'snmp' object. */
-static int sctp_snmp_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, sctp_snmp_seq_show);
-}
-
-static const struct file_operations sctp_snmp_seq_fops = {
- .open = sctp_snmp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
/* Dump local addresses of an association/endpoint. */
static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_common *epb)
{
@@ -408,8 +395,8 @@ int __net_init sctp_proc_init(struct net *net)
net->sctp.proc_net_sctp = proc_net_mkdir(net, "sctp", net->proc_net);
if (!net->sctp.proc_net_sctp)
return -ENOMEM;
- if (!proc_create("snmp", 0444, net->sctp.proc_net_sctp,
- &sctp_snmp_seq_fops))
+ if (!proc_create_net_single("snmp", 0444, net->sctp.proc_net_sctp,
+ sctp_snmp_seq_show, NULL))
goto cleanup;
if (!proc_create_net("eps", 0444, net->sctp.proc_net_sctp,
&sctp_eps_ops, sizeof(struct seq_net_private)))
diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c
index ed06903cd84d..178318d2e120 100644
--- a/net/xfrm/xfrm_proc.c
+++ b/net/xfrm/xfrm_proc.c
@@ -65,22 +65,10 @@ static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int xfrm_statistics_seq_open(struct inode *inode, struct file *file)
-{
- return single_open_net(inode, file, xfrm_statistics_seq_show);
-}
-
-static const struct file_operations xfrm_statistics_seq_fops = {
- .open = xfrm_statistics_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release_net,
-};
-
int __net_init xfrm_proc_init(struct net *net)
{
- if (!proc_create("xfrm_stat", 0444, net->proc_net,
- &xfrm_statistics_seq_fops))
+ if (!proc_create_net_single("xfrm_stat", 0444, net->proc_net,
+ xfrm_statistics_seq_show, NULL))
return -ENOMEM;
return 0;
}
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 13/39] proc: introduce proc_create_net{,_data}
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: Alexey Dobriyan, Greg Kroah-Hartman, Jiri Slaby, Corey Minyard,
Alessandro Zummo, Alexandre Belloni, linux-acpi, drbd-dev,
linux-ide, netdev, linux-rtc, megaraidlinux.pdl, linux-scsi,
devel, linux-afs, linux-ext4, jfs-discussion, netfilter-devel,
linux-kernel
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Variants of proc_create{,_data} that directly take a struct seq_operations
and deal with network namespaces in ->open and ->release. All callers of
proc_create + seq_open_net converted over, and seq_{open,release}_net are
removed entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/net/ppp/pppoe.c | 18 +-------
fs/nfs/client.c | 43 ++---------------
fs/proc/proc_net.c | 61 ++++++++++++++++---------
include/linux/proc_fs.h | 9 ++++
include/linux/seq_file_net.h | 3 --
include/net/ip6_fib.h | 10 +++-
include/net/phonet/pn_dev.h | 4 +-
include/net/udp.h | 4 +-
net/8021q/vlanproc.c | 18 ++------
net/atm/clip.c | 17 +------
net/core/net-procfs.c | 49 +++-----------------
net/core/sock.c | 16 +------
net/decnet/dn_neigh.c | 18 +-------
net/ipv4/arp.c | 17 ++-----
net/ipv4/fib_trie.c | 32 ++-----------
net/ipv4/igmp.c | 33 ++-----------
net/ipv4/ipmr.c | 32 ++-----------
net/ipv4/ping.c | 16 +------
net/ipv4/raw.c | 17 +------
net/ipv4/tcp_ipv4.c | 17 +------
net/ipv4/udp.c | 21 ++-------
net/ipv4/udplite.c | 4 +-
net/ipv6/addrconf.c | 16 +------
net/ipv6/anycast.c | 16 +------
net/ipv6/ip6_fib.c | 18 +-------
net/ipv6/ip6_flowlabel.c | 17 +------
net/ipv6/ip6mr.c | 32 ++-----------
net/ipv6/mcast.c | 34 ++------------
net/ipv6/ping.c | 16 +------
net/ipv6/raw.c | 17 +------
net/ipv6/route.c | 11 +----
net/ipv6/tcp_ipv6.c | 17 +------
net/ipv6/udp.c | 21 ++-------
net/ipv6/udplite.c | 5 +-
net/kcm/kcmproc.c | 16 +------
net/key/af_key.c | 16 +------
net/l2tp/l2tp_ppp.c | 22 +--------
net/netfilter/ipvs/ip_vs_app.c | 16 +------
net/netfilter/ipvs/ip_vs_conn.c | 35 ++------------
net/netfilter/ipvs/ip_vs_ctl.c | 16 +------
net/netfilter/nf_conntrack_expect.c | 17 +------
net/netfilter/nf_conntrack_standalone.c | 33 ++-----------
net/netfilter/nf_log.c | 19 +-------
net/netfilter/nf_synproxy_core.c | 17 +------
net/netfilter/nfnetlink_log.c | 18 +-------
net/netfilter/nfnetlink_queue.c | 18 +-------
net/netfilter/x_tables.c | 18 ++------
net/netlink/af_netlink.c | 18 +-------
net/packet/af_packet.c | 17 +------
net/phonet/pn_dev.c | 6 ++-
net/phonet/socket.c | 30 +-----------
net/rxrpc/ar-internal.h | 4 +-
net/rxrpc/net_ns.c | 7 ++-
net/rxrpc/proc.c | 31 +------------
net/sctp/proc.c | 54 +++-------------------
net/unix/af_unix.c | 17 +------
net/wireless/wext-proc.c | 17 +------
57 files changed, 202 insertions(+), 939 deletions(-)
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index 1483bc7b01e1..714bb605a140 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -1092,21 +1092,6 @@ static const struct seq_operations pppoe_seq_ops = {
.stop = pppoe_seq_stop,
.show = pppoe_seq_show,
};
-
-static int pppoe_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &pppoe_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations pppoe_seq_fops = {
- .owner = THIS_MODULE,
- .open = pppoe_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif /* CONFIG_PROC_FS */
static const struct proto_ops pppoe_ops = {
@@ -1142,7 +1127,8 @@ static __net_init int pppoe_init_net(struct net *net)
rwlock_init(&pn->hash_lock);
- pde = proc_create("pppoe", 0444, net->proc_net, &pppoe_seq_fops);
+ pde = proc_create_net("pppoe", 0444, net->proc_net,
+ &pppoe_seq_ops, sizeof(struct seq_net_private));
#ifdef CONFIG_PROC_FS
if (!pde)
return -ENOMEM;
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index b9129e2befea..bbc91d7ca1bd 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1067,7 +1067,6 @@ void nfs_clients_init(struct net *net)
}
#ifdef CONFIG_PROC_FS
-static int nfs_server_list_open(struct inode *inode, struct file *file);
static void *nfs_server_list_start(struct seq_file *p, loff_t *pos);
static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos);
static void nfs_server_list_stop(struct seq_file *p, void *v);
@@ -1080,14 +1079,6 @@ static const struct seq_operations nfs_server_list_ops = {
.show = nfs_server_list_show,
};
-static const struct file_operations nfs_server_list_fops = {
- .open = nfs_server_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-static int nfs_volume_list_open(struct inode *inode, struct file *file);
static void *nfs_volume_list_start(struct seq_file *p, loff_t *pos);
static void *nfs_volume_list_next(struct seq_file *p, void *v, loff_t *pos);
static void nfs_volume_list_stop(struct seq_file *p, void *v);
@@ -1100,23 +1091,6 @@ static const struct seq_operations nfs_volume_list_ops = {
.show = nfs_volume_list_show,
};
-static const struct file_operations nfs_volume_list_fops = {
- .open = nfs_volume_list_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-/*
- * open "/proc/fs/nfsfs/servers" which provides a summary of servers with which
- * we're dealing
- */
-static int nfs_server_list_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &nfs_server_list_ops,
- sizeof(struct seq_net_private));
-}
-
/*
* set up the iterator to start reading from the server list and return the first item
*/
@@ -1184,15 +1158,6 @@ static int nfs_server_list_show(struct seq_file *m, void *v)
return 0;
}
-/*
- * open "/proc/fs/nfsfs/volumes" which provides a summary of extant volumes
- */
-static int nfs_volume_list_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &nfs_volume_list_ops,
- sizeof(struct seq_net_private));
-}
-
/*
* set up the iterator to start reading from the volume list and return the first item
*/
@@ -1278,14 +1243,14 @@ int nfs_fs_proc_net_init(struct net *net)
goto error_0;
/* a file of servers with which we're dealing */
- p = proc_create("servers", S_IFREG|S_IRUGO,
- nn->proc_nfsfs, &nfs_server_list_fops);
+ p = proc_create_net("servers", S_IFREG|S_IRUGO, nn->proc_nfsfs,
+ &nfs_server_list_ops, sizeof(struct seq_net_private));
if (!p)
goto error_1;
/* a file of volumes that we have mounted */
- p = proc_create("volumes", S_IFREG|S_IRUGO,
- nn->proc_nfsfs, &nfs_volume_list_fops);
+ p = proc_create_net("volumes", S_IFREG|S_IRUGO, nn->proc_nfsfs,
+ &nfs_volume_list_ops, sizeof(struct seq_net_private));
if (!p)
goto error_1;
return 0;
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 1763f370489d..9a1948d58f10 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -38,20 +38,20 @@ static struct net *get_proc_net(const struct inode *inode)
return maybe_get_net(PDE_NET(PDE(inode)));
}
-int seq_open_net(struct inode *ino, struct file *f,
- const struct seq_operations *ops, int size)
+static int seq_open_net(struct inode *inode, struct file *file)
{
- struct net *net;
+ size_t state_size = PDE(inode)->state_size;
struct seq_net_private *p;
+ struct net *net;
- BUG_ON(size < sizeof(*p));
+ WARN_ON_ONCE(state_size < sizeof(*p));
- net = get_proc_net(ino);
- if (net == NULL)
+ net = get_proc_net(inode);
+ if (!net)
return -ENXIO;
- p = __seq_open_private(f, ops, size);
- if (p == NULL) {
+ p = __seq_open_private(file, PDE(inode)->seq_ops, state_size);
+ if (!p) {
put_net(net);
return -ENOMEM;
}
@@ -60,7 +60,38 @@ int seq_open_net(struct inode *ino, struct file *f,
#endif
return 0;
}
-EXPORT_SYMBOL_GPL(seq_open_net);
+
+static int seq_release_net(struct inode *ino, struct file *f)
+{
+ struct seq_file *seq = f->private_data;
+
+ put_net(seq_file_net(seq));
+ seq_release_private(ino, f);
+ return 0;
+}
+
+static const struct file_operations proc_net_seq_fops = {
+ .open = seq_open_net,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
+};
+
+struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
+ struct proc_dir_entry *parent, const struct seq_operations *ops,
+ size_t state_size, void *data)
+{
+ struct proc_dir_entry *p;
+
+ p = proc_create_data(name, mode, parent, &proc_net_seq_fops, data);
+ if (p) {
+ p->seq_ops = ops;
+ p->state_size = state_size;
+ }
+
+ return p;
+}
+EXPORT_SYMBOL_GPL(proc_create_net_data);
int single_open_net(struct inode *inode, struct file *file,
int (*show)(struct seq_file *, void *))
@@ -86,18 +117,6 @@ int single_open_net(struct inode *inode, struct file *file,
}
EXPORT_SYMBOL_GPL(single_open_net);
-int seq_release_net(struct inode *ino, struct file *f)
-{
- struct seq_file *seq;
-
- seq = f->private_data;
-
- put_net(seq_file_net(seq));
- seq_release_private(ino, f);
- return 0;
-}
-EXPORT_SYMBOL_GPL(seq_release_net);
-
int single_release_net(struct inode *ino, struct file *f)
{
struct seq_file *seq = f->private_data;
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 4f5f2c002e30..d58976e93ecd 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -53,6 +53,12 @@ extern void proc_remove(struct proc_dir_entry *);
extern void remove_proc_entry(const char *, struct proc_dir_entry *);
extern int remove_proc_subtree(const char *, struct proc_dir_entry *);
+struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
+ struct proc_dir_entry *parent, const struct seq_operations *ops,
+ size_t state_size, void *data);
+#define proc_create_net(name, mode, parent, state_size, ops) \
+ proc_create_net_data(name, mode, parent, state_size, ops, NULL)
+
#else /* CONFIG_PROC_FS */
static inline void proc_root_init(void)
@@ -89,6 +95,9 @@ static inline void proc_remove(struct proc_dir_entry *de) {}
#define remove_proc_entry(name, parent) do {} while (0)
static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *parent) { return 0; }
+#define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;})
+#define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
+
#endif /* CONFIG_PROC_FS */
struct net;
diff --git a/include/linux/seq_file_net.h b/include/linux/seq_file_net.h
index ed20faa99e05..5ea18a16291a 100644
--- a/include/linux/seq_file_net.h
+++ b/include/linux/seq_file_net.h
@@ -13,11 +13,8 @@ struct seq_net_private {
#endif
};
-int seq_open_net(struct inode *, struct file *,
- const struct seq_operations *, int);
int single_open_net(struct inode *, struct file *file,
int (*show)(struct seq_file *, void *));
-int seq_release_net(struct inode *, struct file *);
int single_release_net(struct inode *, struct file *);
static inline struct net *seq_file_net(struct seq_file *seq)
{
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 5e86fd9dc857..0e79c3408569 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -394,7 +394,15 @@ void fib6_gc_cleanup(void);
int fib6_init(void);
-int ipv6_route_open(struct inode *inode, struct file *file);
+struct ipv6_route_iter {
+ struct seq_net_private p;
+ struct fib6_walker w;
+ loff_t skip;
+ struct fib6_table *tbl;
+ int sernum;
+};
+
+extern const struct seq_operations ipv6_route_seq_ops;
int call_fib6_notifier(struct notifier_block *nb, struct net *net,
enum fib_event_type event_type,
diff --git a/include/net/phonet/pn_dev.h b/include/net/phonet/pn_dev.h
index 8639de5750f6..cbee32be1d9c 100644
--- a/include/net/phonet/pn_dev.h
+++ b/include/net/phonet/pn_dev.h
@@ -56,7 +56,7 @@ struct net_device *phonet_route_output(struct net *net, u8 daddr);
#define PN_NO_ADDR 0xff
-extern const struct file_operations pn_sock_seq_fops;
-extern const struct file_operations pn_res_seq_fops;
+extern const struct seq_operations pn_sock_seq_ops;
+extern const struct seq_operations pn_res_seq_ops;
#endif
diff --git a/include/net/udp.h b/include/net/udp.h
index 093cd323f66a..621778b80e3d 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -423,8 +423,8 @@ void *udp_seq_start(struct seq_file *seq, loff_t *pos);
void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void udp_seq_stop(struct seq_file *seq, void *v);
-extern const struct file_operations udp_afinfo_seq_fops;
-extern const struct file_operations udp6_afinfo_seq_fops;
+extern const struct seq_operations udp_seq_ops;
+extern const struct seq_operations udp6_seq_ops;
int udp4_proc_init(void);
void udp4_proc_exit(void);
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index d3e3f0f2ec1c..d36e8c4b7f56 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -73,19 +73,6 @@ static const struct seq_operations vlan_seq_ops = {
.show = vlan_seq_show,
};
-static int vlan_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &vlan_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations vlan_fops = {
- .open = vlan_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
/*
* Proc filesystem directory entries.
*/
@@ -132,8 +119,9 @@ int __net_init vlan_proc_init(struct net *net)
if (!vn->proc_vlan_dir)
goto err;
- vn->proc_vlan_conf = proc_create(name_conf, S_IFREG | 0600,
- vn->proc_vlan_dir, &vlan_fops);
+ vn->proc_vlan_conf = proc_create_net(name_conf, S_IFREG | 0600,
+ vn->proc_vlan_dir, &vlan_seq_ops,
+ sizeof(struct seq_net_private));
if (!vn->proc_vlan_conf)
goto err;
return 0;
diff --git a/net/atm/clip.c b/net/atm/clip.c
index f07dbc632222..66caa48a27c2 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -863,20 +863,6 @@ static const struct seq_operations arp_seq_ops = {
.stop = neigh_seq_stop,
.show = clip_seq_show,
};
-
-static int arp_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &arp_seq_ops,
- sizeof(struct clip_seq_state));
-}
-
-static const struct file_operations arp_seq_fops = {
- .open = arp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
- .owner = THIS_MODULE
-};
#endif
static void atm_clip_exit_noproc(void);
@@ -893,7 +879,8 @@ static int __init atm_clip_init(void)
{
struct proc_dir_entry *p;
- p = proc_create("arp", 0444, atm_proc_root, &arp_seq_fops);
+ p = proc_create_net("arp", 0444, atm_proc_root, &arp_seq_ops,
+ sizeof(struct clip_seq_state));
if (!p) {
pr_err("Unable to initialize /proc/net/atm/arp\n");
atm_clip_exit_noproc();
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index c4e8ebe55e26..63881f72ef71 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -175,19 +175,6 @@ static const struct seq_operations dev_seq_ops = {
.show = dev_seq_show,
};
-static int dev_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &dev_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations dev_seq_fops = {
- .open = dev_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static const struct seq_operations softnet_seq_ops = {
.start = softnet_seq_start,
.next = softnet_seq_next,
@@ -285,30 +272,18 @@ static const struct seq_operations ptype_seq_ops = {
.show = ptype_seq_show,
};
-static int ptype_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ptype_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations ptype_seq_fops = {
- .open = ptype_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-
static int __net_init dev_proc_net_init(struct net *net)
{
int rc = -ENOMEM;
- if (!proc_create("dev", 0444, net->proc_net, &dev_seq_fops))
+ if (!proc_create_net("dev", 0444, net->proc_net, &dev_seq_ops,
+ sizeof(struct seq_net_private)))
goto out;
if (!proc_create_seq("softnet_stat", 0444, net->proc_net,
&softnet_seq_ops))
goto out_dev;
- if (!proc_create("ptype", 0444, net->proc_net, &ptype_seq_fops))
+ if (!proc_create_net("ptype", 0444, net->proc_net, &ptype_seq_ops,
+ sizeof(struct seq_net_private)))
goto out_softnet;
if (wext_proc_init(net))
@@ -365,22 +340,10 @@ static const struct seq_operations dev_mc_seq_ops = {
.show = dev_mc_seq_show,
};
-static int dev_mc_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &dev_mc_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations dev_mc_seq_fops = {
- .open = dev_mc_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init dev_mc_net_init(struct net *net)
{
- if (!proc_create("dev_mcast", 0, net->proc_net, &dev_mc_seq_fops))
+ if (!proc_create_net("dev_mcast", 0, net->proc_net, &dev_mc_seq_ops,
+ sizeof(struct seq_net_private)))
return -ENOMEM;
return 0;
}
diff --git a/net/core/sock.c b/net/core/sock.c
index 6444525f610c..835a22f94bc5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3439,22 +3439,10 @@ static const struct seq_operations proto_seq_ops = {
.show = proto_seq_show,
};
-static int proto_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &proto_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations proto_seq_fops = {
- .open = proto_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static __net_init int proto_init_net(struct net *net)
{
- if (!proc_create("protocols", 0444, net->proc_net, &proto_seq_fops))
+ if (!proc_create_net("protocols", 0444, net->proc_net, &proto_seq_ops,
+ sizeof(struct seq_net_private)))
return -ENOMEM;
return 0;
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 13156165afa3..94b306f6d551 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -589,27 +589,13 @@ static const struct seq_operations dn_neigh_seq_ops = {
.stop = neigh_seq_stop,
.show = dn_neigh_seq_show,
};
-
-static int dn_neigh_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &dn_neigh_seq_ops,
- sizeof(struct neigh_seq_state));
-}
-
-static const struct file_operations dn_neigh_seq_fops = {
- .open = dn_neigh_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif
void __init dn_neigh_init(void)
{
neigh_table_init(NEIGH_DN_TABLE, &dn_neigh_table);
- proc_create("decnet_neigh", 0444, init_net.proc_net,
- &dn_neigh_seq_fops);
+ proc_create_net("decnet_neigh", 0444, init_net.proc_net,
+ &dn_neigh_seq_ops, sizeof(struct neigh_seq_state));
}
void __exit dn_neigh_cleanup(void)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index bf6c2d4d4fdc..e90c89ef8c08 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1418,23 +1418,12 @@ static const struct seq_operations arp_seq_ops = {
.show = arp_seq_show,
};
-static int arp_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &arp_seq_ops,
- sizeof(struct neigh_seq_state));
-}
-
-static const struct file_operations arp_seq_fops = {
- .open = arp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
+/* ------------------------------------------------------------------------ */
static int __net_init arp_net_init(struct net *net)
{
- if (!proc_create("arp", 0444, net->proc_net, &arp_seq_fops))
+ if (!proc_create_net("arp", 0444, net->proc_net, &arp_seq_ops,
+ sizeof(struct neigh_seq_state)))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3dcffd3ce98c..3293f04b941d 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2533,19 +2533,6 @@ static const struct seq_operations fib_trie_seq_ops = {
.show = fib_trie_seq_show,
};
-static int fib_trie_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &fib_trie_seq_ops,
- sizeof(struct fib_trie_iter));
-}
-
-static const struct file_operations fib_trie_fops = {
- .open = fib_trie_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
struct fib_route_iter {
struct seq_net_private p;
struct fib_table *main_tb;
@@ -2726,29 +2713,18 @@ static const struct seq_operations fib_route_seq_ops = {
.show = fib_route_seq_show,
};
-static int fib_route_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &fib_route_seq_ops,
- sizeof(struct fib_route_iter));
-}
-
-static const struct file_operations fib_route_fops = {
- .open = fib_route_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
int __net_init fib_proc_init(struct net *net)
{
- if (!proc_create("fib_trie", 0444, net->proc_net, &fib_trie_fops))
+ if (!proc_create_net("fib_trie", 0444, net->proc_net, &fib_trie_seq_ops,
+ sizeof(struct fib_trie_iter)))
goto out1;
if (!proc_create("fib_triestat", 0444, net->proc_net,
&fib_triestat_fops))
goto out2;
- if (!proc_create("route", 0444, net->proc_net, &fib_route_fops))
+ if (!proc_create_net("route", 0444, net->proc_net, &fib_route_seq_ops,
+ sizeof(struct fib_route_iter)))
goto out3;
return 0;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index b26a81a7de42..85b617b655bc 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2829,19 +2829,6 @@ static const struct seq_operations igmp_mc_seq_ops = {
.show = igmp_mc_seq_show,
};
-static int igmp_mc_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &igmp_mc_seq_ops,
- sizeof(struct igmp_mc_iter_state));
-}
-
-static const struct file_operations igmp_mc_seq_fops = {
- .open = igmp_mc_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
struct igmp_mcf_iter_state {
struct seq_net_private p;
struct net_device *dev;
@@ -2975,29 +2962,17 @@ static const struct seq_operations igmp_mcf_seq_ops = {
.show = igmp_mcf_seq_show,
};
-static int igmp_mcf_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &igmp_mcf_seq_ops,
- sizeof(struct igmp_mcf_iter_state));
-}
-
-static const struct file_operations igmp_mcf_seq_fops = {
- .open = igmp_mcf_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init igmp_net_init(struct net *net)
{
struct proc_dir_entry *pde;
int err;
- pde = proc_create("igmp", 0444, net->proc_net, &igmp_mc_seq_fops);
+ pde = proc_create_net("igmp", 0444, net->proc_net, &igmp_mc_seq_ops,
+ sizeof(struct igmp_mc_iter_state));
if (!pde)
goto out_igmp;
- pde = proc_create("mcfilter", 0444, net->proc_net,
- &igmp_mcf_seq_fops);
+ pde = proc_create_net("mcfilter", 0444, net->proc_net,
+ &igmp_mcf_seq_ops, sizeof(struct igmp_mcf_iter_state));
if (!pde)
goto out_mcfilter;
err = inet_ctl_sock_create(&net->ipv4.mc_autojoin_sk, AF_INET,
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 2fb4de3f7f66..37c4f885ff7b 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2828,19 +2828,6 @@ static const struct seq_operations ipmr_vif_seq_ops = {
.show = ipmr_vif_seq_show,
};
-static int ipmr_vif_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ipmr_vif_seq_ops,
- sizeof(struct mr_vif_iter));
-}
-
-static const struct file_operations ipmr_vif_fops = {
- .open = ipmr_vif_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static void *ipmr_mfc_seq_start(struct seq_file *seq, loff_t *pos)
{
struct net *net = seq_file_net(seq);
@@ -2900,19 +2887,6 @@ static const struct seq_operations ipmr_mfc_seq_ops = {
.stop = mr_mfc_seq_stop,
.show = ipmr_mfc_seq_show,
};
-
-static int ipmr_mfc_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ipmr_mfc_seq_ops,
- sizeof(struct mr_mfc_iter));
-}
-
-static const struct file_operations ipmr_mfc_fops = {
- .open = ipmr_mfc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif
#ifdef CONFIG_IP_PIMSM_V2
@@ -2977,9 +2951,11 @@ static int __net_init ipmr_net_init(struct net *net)
#ifdef CONFIG_PROC_FS
err = -ENOMEM;
- if (!proc_create("ip_mr_vif", 0, net->proc_net, &ipmr_vif_fops))
+ if (!proc_create_net("ip_mr_vif", 0, net->proc_net, &ipmr_vif_seq_ops,
+ sizeof(struct mr_vif_iter)))
goto proc_vif_fail;
- if (!proc_create("ip_mr_cache", 0, net->proc_net, &ipmr_mfc_fops))
+ if (!proc_create_net("ip_mr_cache", 0, net->proc_net, &ipmr_mfc_seq_ops,
+ sizeof(struct mr_mfc_iter)))
goto proc_cache_fail;
#endif
return 0;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 83170ebf5dfc..b5190bc35053 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1154,22 +1154,10 @@ static const struct seq_operations ping_v4_seq_ops = {
.stop = ping_seq_stop,
};
-static int ping_v4_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ping_v4_seq_ops,
- sizeof(struct ping_iter_state));
-}
-
-const struct file_operations ping_v4_seq_fops = {
- .open = ping_v4_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init ping_v4_proc_init_net(struct net *net)
{
- if (!proc_create("icmp", 0444, net->proc_net, &ping_v4_seq_fops))
+ if (!proc_create_net("icmp", 0444, net->proc_net, &ping_v4_seq_ops,
+ sizeof(struct ping_iter_state)))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index ae57962b31e3..abb3c9490c55 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -1112,23 +1112,10 @@ static const struct seq_operations raw_seq_ops = {
.show = raw_seq_show,
};
-static int raw_v4_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &raw_seq_ops,
- sizeof(struct raw_iter_state));
-}
-
-static const struct file_operations raw_seq_fops = {
- .open = raw_v4_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static __net_init int raw_init_net(struct net *net)
{
- if (!proc_create_data("raw", 0444, net->proc_net, &raw_seq_fops,
- &raw_v4_hashinfo))
+ if (!proc_create_net_data("raw", 0444, net->proc_net, &raw_seq_ops,
+ sizeof(struct raw_iter_state), &raw_v4_hashinfo))
return -ENOMEM;
return 0;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 645f259d0972..2c970626b398 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2350,27 +2350,14 @@ static const struct seq_operations tcp4_seq_ops = {
.stop = tcp_seq_stop,
};
-static int tcp_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &tcp4_seq_ops,
- sizeof(struct tcp_iter_state));
-}
-
-static const struct file_operations tcp_afinfo_seq_fops = {
- .open = tcp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-
static struct tcp_seq_afinfo tcp4_seq_afinfo = {
.family = AF_INET,
};
static int __net_init tcp4_proc_init_net(struct net *net)
{
- if (!proc_create_data("tcp", 0444, net->proc_net,
- &tcp_afinfo_seq_fops, &tcp4_seq_afinfo))
+ if (!proc_create_net_data("tcp", 0444, net->proc_net, &tcp4_seq_ops,
+ sizeof(struct tcp_iter_state), &tcp4_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index d48790ddb6cf..2f2c2e10c1a0 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2703,26 +2703,13 @@ int udp4_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations udp_seq_ops = {
+const struct seq_operations udp_seq_ops = {
.start = udp_seq_start,
.next = udp_seq_next,
.stop = udp_seq_stop,
.show = udp4_seq_show,
};
-
-static int udp_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &udp_seq_ops,
- sizeof(struct udp_iter_state));
-}
-
-const struct file_operations udp_afinfo_seq_fops = {
- .open = udp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-EXPORT_SYMBOL(udp_afinfo_seq_fops);
+EXPORT_SYMBOL(udp_seq_ops);
static struct udp_seq_afinfo udp4_seq_afinfo = {
.family = AF_INET,
@@ -2731,8 +2718,8 @@ static struct udp_seq_afinfo udp4_seq_afinfo = {
static int __net_init udp4_proc_init_net(struct net *net)
{
- if (!proc_create_data("udp", 0444, net->proc_net, &udp_afinfo_seq_fops,
- &udp4_seq_afinfo))
+ if (!proc_create_net_data("udp", 0444, net->proc_net, &udp_seq_ops,
+ sizeof(struct udp_iter_state), &udp4_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index 4a6e67bfbe0d..8545457752fb 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -81,8 +81,8 @@ static struct udp_seq_afinfo udplite4_seq_afinfo = {
static int __net_init udplite4_proc_init_net(struct net *net)
{
- if (!proc_create_data("udplite", 0444, net->proc_net,
- &udp_afinfo_seq_fops, &udplite4_seq_afinfo))
+ if (!proc_create_net_data("udplite", 0444, net->proc_net, &udp_seq_ops,
+ sizeof(struct udp_iter_state), &udplite4_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 78cef00c9596..1b5ea3379d9b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4254,22 +4254,10 @@ static const struct seq_operations if6_seq_ops = {
.stop = if6_seq_stop,
};
-static int if6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &if6_seq_ops,
- sizeof(struct if6_iter_state));
-}
-
-static const struct file_operations if6_fops = {
- .open = if6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init if6_proc_net_init(struct net *net)
{
- if (!proc_create("if_inet6", 0444, net->proc_net, &if6_fops))
+ if (!proc_create_net("if_inet6", 0444, net->proc_net, &if6_seq_ops,
+ sizeof(struct if6_iter_state)))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index bbcabbba9bd8..ebeaf47d5c8d 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -529,22 +529,10 @@ static const struct seq_operations ac6_seq_ops = {
.show = ac6_seq_show,
};
-static int ac6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ac6_seq_ops,
- sizeof(struct ac6_iter_state));
-}
-
-static const struct file_operations ac6_seq_fops = {
- .open = ac6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
int __net_init ac6_proc_init(struct net *net)
{
- if (!proc_create("anycast6", 0444, net->proc_net, &ac6_seq_fops))
+ if (!proc_create_net("anycast6", 0444, net->proc_net, &ac6_seq_ops,
+ sizeof(struct ac6_iter_state)))
return -ENOMEM;
return 0;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index deab2db6692e..01372dd74e38 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -2209,15 +2209,6 @@ void fib6_gc_cleanup(void)
}
#ifdef CONFIG_PROC_FS
-
-struct ipv6_route_iter {
- struct seq_net_private p;
- struct fib6_walker w;
- loff_t skip;
- struct fib6_table *tbl;
- int sernum;
-};
-
static int ipv6_route_seq_show(struct seq_file *seq, void *v)
{
struct rt6_info *rt = v;
@@ -2383,17 +2374,10 @@ static void ipv6_route_seq_stop(struct seq_file *seq, void *v)
rcu_read_unlock_bh();
}
-static const struct seq_operations ipv6_route_seq_ops = {
+const struct seq_operations ipv6_route_seq_ops = {
.start = ipv6_route_seq_start,
.next = ipv6_route_seq_next,
.stop = ipv6_route_seq_stop,
.show = ipv6_route_seq_show
};
-
-int ipv6_route_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ipv6_route_seq_ops,
- sizeof(struct ipv6_route_iter));
-}
-
#endif /* CONFIG_PROC_FS */
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index a9f221d45ef9..550c4b29b549 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -811,23 +811,10 @@ static const struct seq_operations ip6fl_seq_ops = {
.show = ip6fl_seq_show,
};
-static int ip6fl_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip6fl_seq_ops,
- sizeof(struct ip6fl_iter_state));
-}
-
-static const struct file_operations ip6fl_seq_fops = {
- .open = ip6fl_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init ip6_flowlabel_proc_init(struct net *net)
{
- if (!proc_create("ip6_flowlabel", 0444, net->proc_net,
- &ip6fl_seq_fops))
+ if (!proc_create_net("ip6_flowlabel", 0444, net->proc_net,
+ &ip6fl_seq_ops, sizeof(struct ip6fl_iter_state)))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 298fd8b6ed17..4a15529d33eb 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -439,19 +439,6 @@ static const struct seq_operations ip6mr_vif_seq_ops = {
.show = ip6mr_vif_seq_show,
};
-static int ip6mr_vif_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip6mr_vif_seq_ops,
- sizeof(struct mr_vif_iter));
-}
-
-static const struct file_operations ip6mr_vif_fops = {
- .open = ip6mr_vif_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static void *ipmr_mfc_seq_start(struct seq_file *seq, loff_t *pos)
{
struct net *net = seq_file_net(seq);
@@ -512,19 +499,6 @@ static const struct seq_operations ipmr_mfc_seq_ops = {
.stop = mr_mfc_seq_stop,
.show = ipmr_mfc_seq_show,
};
-
-static int ipmr_mfc_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ipmr_mfc_seq_ops,
- sizeof(struct mr_mfc_iter));
-}
-
-static const struct file_operations ip6mr_mfc_fops = {
- .open = ipmr_mfc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif
#ifdef CONFIG_IPV6_PIMSM_V2
@@ -1316,9 +1290,11 @@ static int __net_init ip6mr_net_init(struct net *net)
#ifdef CONFIG_PROC_FS
err = -ENOMEM;
- if (!proc_create("ip6_mr_vif", 0, net->proc_net, &ip6mr_vif_fops))
+ if (!proc_create_net("ip6_mr_vif", 0, net->proc_net, &ip6mr_vif_seq_ops,
+ sizeof(struct mr_vif_iter)))
goto proc_vif_fail;
- if (!proc_create("ip6_mr_cache", 0, net->proc_net, &ip6mr_mfc_fops))
+ if (!proc_create_net("ip6_mr_cache", 0, net->proc_net, &ipmr_mfc_seq_ops,
+ sizeof(struct mr_mfc_iter)))
goto proc_cache_fail;
#endif
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 793159d77d8a..975021df7c1c 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2749,19 +2749,6 @@ static const struct seq_operations igmp6_mc_seq_ops = {
.show = igmp6_mc_seq_show,
};
-static int igmp6_mc_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &igmp6_mc_seq_ops,
- sizeof(struct igmp6_mc_iter_state));
-}
-
-static const struct file_operations igmp6_mc_seq_fops = {
- .open = igmp6_mc_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
struct igmp6_mcf_iter_state {
struct seq_net_private p;
struct net_device *dev;
@@ -2903,28 +2890,17 @@ static const struct seq_operations igmp6_mcf_seq_ops = {
.show = igmp6_mcf_seq_show,
};
-static int igmp6_mcf_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &igmp6_mcf_seq_ops,
- sizeof(struct igmp6_mcf_iter_state));
-}
-
-static const struct file_operations igmp6_mcf_seq_fops = {
- .open = igmp6_mcf_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init igmp6_proc_init(struct net *net)
{
int err;
err = -ENOMEM;
- if (!proc_create("igmp6", 0444, net->proc_net, &igmp6_mc_seq_fops))
+ if (!proc_create_net("igmp6", 0444, net->proc_net, &igmp6_mc_seq_ops,
+ sizeof(struct igmp6_mc_iter_state)))
goto out;
- if (!proc_create("mcfilter6", 0444, net->proc_net,
- &igmp6_mcf_seq_fops))
+ if (!proc_create_net("mcfilter6", 0444, net->proc_net,
+ &igmp6_mcf_seq_ops,
+ sizeof(struct igmp6_mcf_iter_state)))
goto out_proc_net_igmp6;
err = 0;
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 45d5c8e0f2bf..96f56bf49a30 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -223,22 +223,10 @@ static const struct seq_operations ping_v6_seq_ops = {
.stop = ping_seq_stop,
};
-static int ping_v6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ping_v6_seq_ops,
- sizeof(struct ping_iter_state));
-}
-
-const struct file_operations ping_v6_seq_fops = {
- .open = ping_v6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init ping_v6_proc_init_net(struct net *net)
{
- if (!proc_create("icmp6", 0444, net->proc_net, &ping_v6_seq_fops))
+ if (!proc_create_net("icmp6", 0444, net->proc_net, &ping_v6_seq_ops,
+ sizeof(struct ping_iter_state)))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index dade69bf61e6..afc307c89d1a 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1304,23 +1304,10 @@ static const struct seq_operations raw6_seq_ops = {
.show = raw6_seq_show,
};
-static int raw6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &raw6_seq_ops,
- sizeof(struct raw_iter_state));
-}
-
-static const struct file_operations raw6_seq_fops = {
- .open = raw6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init raw6_init_net(struct net *net)
{
- if (!proc_create_data("raw6", 0444, net->proc_net, &raw6_seq_fops,
- &raw_v6_hashinfo))
+ if (!proc_create_net_data("raw6", 0444, net->proc_net, &raw6_seq_ops,
+ sizeof(struct raw_iter_state), &raw_v6_hashinfo))
return -ENOMEM;
return 0;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 49b954d6d0fa..07c4aafe7710 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4855,14 +4855,6 @@ static int ip6_route_dev_notify(struct notifier_block *this,
*/
#ifdef CONFIG_PROC_FS
-
-static const struct file_operations ipv6_route_proc_fops = {
- .open = ipv6_route_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int rt6_stats_seq_show(struct seq_file *seq, void *v)
{
struct net *net = (struct net *)seq->private;
@@ -5093,7 +5085,8 @@ static void __net_exit ip6_route_net_exit(struct net *net)
static int __net_init ip6_route_net_init_late(struct net *net)
{
#ifdef CONFIG_PROC_FS
- proc_create("ipv6_route", 0, net->proc_net, &ipv6_route_proc_fops);
+ proc_create_net("ipv6_route", 0, net->proc_net, &ipv6_route_seq_ops,
+ sizeof(struct ipv6_route_iter));
proc_create("rt6_stats", 0444, net->proc_net, &rt6_stats_seq_fops);
#endif
return 0;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index c0329bb1692f..d2ce66b23430 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1916,27 +1916,14 @@ static const struct seq_operations tcp6_seq_ops = {
.stop = tcp_seq_stop,
};
-static int tcp6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &tcp6_seq_ops,
- sizeof(struct tcp_iter_state));
-}
-
-static const struct file_operations tcp6_afinfo_seq_fops = {
- .open = tcp6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-
static struct tcp_seq_afinfo tcp6_seq_afinfo = {
.family = AF_INET6,
};
int __net_init tcp6_proc_init(struct net *net)
{
- if (!proc_create_data("tcp6", 0444, net->proc_net,
- &tcp6_afinfo_seq_fops, &tcp6_seq_afinfo))
+ if (!proc_create_net_data("tcp6", 0444, net->proc_net, &tcp6_seq_ops,
+ sizeof(struct tcp_iter_state), &tcp6_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 68f11d6e3912..3ca8a6ed1794 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1480,26 +1480,13 @@ int udp6_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations udp6_seq_ops = {
+const struct seq_operations udp6_seq_ops = {
.start = udp_seq_start,
.next = udp_seq_next,
.stop = udp_seq_stop,
.show = udp6_seq_show,
};
-
-static int udp6_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &udp6_seq_ops,
- sizeof(struct udp_iter_state));
-}
-
-const struct file_operations udp6_afinfo_seq_fops = {
- .open = udp6_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-EXPORT_SYMBOL(udp6_afinfo_seq_fops);
+EXPORT_SYMBOL(udp6_seq_ops);
static struct udp_seq_afinfo udp6_seq_afinfo = {
.family = AF_INET6,
@@ -1508,8 +1495,8 @@ static struct udp_seq_afinfo udp6_seq_afinfo = {
int __net_init udp6_proc_init(struct net *net)
{
- if (!proc_create_data("udp6", 0444, net->proc_net,
- &udp6_afinfo_seq_fops, &udp6_seq_afinfo))
+ if (!proc_create_net_data("udp6", 0444, net->proc_net, &udp6_seq_ops,
+ sizeof(struct udp_iter_state), &udp6_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index a119e57196b5..5000ad6878e6 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -100,8 +100,9 @@ static struct udp_seq_afinfo udplite6_seq_afinfo = {
static int __net_init udplite6_proc_init_net(struct net *net)
{
- if (!proc_create_data("udplite6", 0444, net->proc_net,
- &udp6_afinfo_seq_fops, &udplite6_seq_afinfo))
+ if (!proc_create_net_data("udplite6", 0444, net->proc_net,
+ &udp6_seq_ops, sizeof(struct udp_iter_state),
+ &udplite6_seq_afinfo))
return -ENOMEM;
return 0;
}
diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c
index 6d0667e62baf..6283ed2f43b2 100644
--- a/net/kcm/kcmproc.c
+++ b/net/kcm/kcmproc.c
@@ -239,19 +239,6 @@ static const struct seq_operations kcm_seq_ops = {
.stop = kcm_seq_stop,
};
-static int kcm_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &kcm_seq_ops,
- sizeof(struct kcm_proc_mux_state));
-}
-
-static const struct file_operations kcm_seq_fops = {
- .open = kcm_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int kcm_stats_seq_show(struct seq_file *seq, void *v)
{
struct kcm_psock_stats psock_stats;
@@ -376,7 +363,8 @@ static int kcm_proc_init_net(struct net *net)
&kcm_stats_seq_fops))
goto out_kcm_stats;
- if (!proc_create("kcm", 0444, net->proc_net, &kcm_seq_fops))
+ if (!proc_create_net("kcm", 0444, net->proc_net, &kcm_seq_ops,
+ sizeof(struct kcm_proc_mux_state)))
goto out_kcm;
return 0;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 7e2e7188e7f4..3f7480a3d20a 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3787,24 +3787,12 @@ static const struct seq_operations pfkey_seq_ops = {
.show = pfkey_seq_show,
};
-static int pfkey_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &pfkey_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations pfkey_proc_ops = {
- .open = pfkey_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init pfkey_init_proc(struct net *net)
{
struct proc_dir_entry *e;
- e = proc_create("pfkey", 0, net->proc_net, &pfkey_proc_ops);
+ e = proc_create_net("pfkey", 0, net->proc_net, &pfkey_seq_ops,
+ sizeof(struct seq_net_private));
if (e == NULL)
return -ENOMEM;
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 896bbca9bdaa..28a46bbfb581 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1722,24 +1722,6 @@ static const struct seq_operations pppol2tp_seq_ops = {
.stop = pppol2tp_seq_stop,
.show = pppol2tp_seq_show,
};
-
-/* Called when our /proc file is opened. We allocate data for use when
- * iterating our tunnel / session contexts and store it in the private
- * data of the seq_file.
- */
-static int pppol2tp_proc_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &pppol2tp_seq_ops,
- sizeof(struct pppol2tp_seq_data));
-}
-
-static const struct file_operations pppol2tp_proc_fops = {
- .open = pppol2tp_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif /* CONFIG_PROC_FS */
/*****************************************************************************
@@ -1751,8 +1733,8 @@ static __net_init int pppol2tp_init_net(struct net *net)
struct proc_dir_entry *pde;
int err = 0;
- pde = proc_create("pppol2tp", 0444, net->proc_net,
- &pppol2tp_proc_fops);
+ pde = proc_create_net("pppol2tp", 0444, net->proc_net,
+ &pppol2tp_seq_ops, sizeof(struct pppol2tp_seq_data));
if (!pde) {
err = -ENOMEM;
goto out;
diff --git a/net/netfilter/ipvs/ip_vs_app.c b/net/netfilter/ipvs/ip_vs_app.c
index 1c98c907bc63..c3db074fc1f7 100644
--- a/net/netfilter/ipvs/ip_vs_app.c
+++ b/net/netfilter/ipvs/ip_vs_app.c
@@ -587,25 +587,13 @@ static const struct seq_operations ip_vs_app_seq_ops = {
.stop = ip_vs_app_seq_stop,
.show = ip_vs_app_seq_show,
};
-
-static int ip_vs_app_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip_vs_app_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations ip_vs_app_fops = {
- .open = ip_vs_app_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif
int __net_init ip_vs_app_net_init(struct netns_ipvs *ipvs)
{
INIT_LIST_HEAD(&ipvs->app_list);
- proc_create("ip_vs_app", 0, ipvs->net->proc_net, &ip_vs_app_fops);
+ proc_create_net("ip_vs_app", 0, ipvs->net->proc_net, &ip_vs_app_seq_ops,
+ sizeof(struct seq_net_private));
return 0;
}
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 370abbf6f421..2dde148f97b5 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1136,19 +1136,6 @@ static const struct seq_operations ip_vs_conn_seq_ops = {
.show = ip_vs_conn_seq_show,
};
-static int ip_vs_conn_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip_vs_conn_seq_ops,
- sizeof(struct ip_vs_iter_state));
-}
-
-static const struct file_operations ip_vs_conn_fops = {
- .open = ip_vs_conn_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static const char *ip_vs_origin_name(unsigned int flags)
{
if (flags & IP_VS_CONN_F_SYNC)
@@ -1212,20 +1199,6 @@ static const struct seq_operations ip_vs_conn_sync_seq_ops = {
.stop = ip_vs_conn_seq_stop,
.show = ip_vs_conn_sync_seq_show,
};
-
-static int ip_vs_conn_sync_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip_vs_conn_sync_seq_ops,
- sizeof(struct ip_vs_iter_state));
-}
-
-static const struct file_operations ip_vs_conn_sync_fops = {
- .open = ip_vs_conn_sync_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif
@@ -1385,9 +1358,11 @@ int __net_init ip_vs_conn_net_init(struct netns_ipvs *ipvs)
{
atomic_set(&ipvs->conn_count, 0);
- proc_create("ip_vs_conn", 0, ipvs->net->proc_net, &ip_vs_conn_fops);
- proc_create("ip_vs_conn_sync", 0, ipvs->net->proc_net,
- &ip_vs_conn_sync_fops);
+ proc_create_net("ip_vs_conn", 0, ipvs->net->proc_net,
+ &ip_vs_conn_seq_ops, sizeof(struct ip_vs_iter_state));
+ proc_create_net("ip_vs_conn_sync", 0, ipvs->net->proc_net,
+ &ip_vs_conn_sync_seq_ops,
+ sizeof(struct ip_vs_iter_state));
return 0;
}
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 5ebde4b15810..5d7abe11ccb5 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2109,19 +2109,6 @@ static const struct seq_operations ip_vs_info_seq_ops = {
.show = ip_vs_info_seq_show,
};
-static int ip_vs_info_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ip_vs_info_seq_ops,
- sizeof(struct ip_vs_iter));
-}
-
-static const struct file_operations ip_vs_info_fops = {
- .open = ip_vs_info_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int ip_vs_stats_show(struct seq_file *seq, void *v)
{
struct net *net = seq_file_single_net(seq);
@@ -4038,7 +4025,8 @@ int __net_init ip_vs_control_net_init(struct netns_ipvs *ipvs)
spin_lock_init(&ipvs->tot_stats.lock);
- proc_create("ip_vs", 0, ipvs->net->proc_net, &ip_vs_info_fops);
+ proc_create_net("ip_vs", 0, ipvs->net->proc_net, &ip_vs_info_seq_ops,
+ sizeof(struct ip_vs_iter));
proc_create("ip_vs_stats", 0, ipvs->net->proc_net, &ip_vs_stats_fops);
proc_create("ip_vs_stats_percpu", 0, ipvs->net->proc_net,
&ip_vs_stats_percpu_fops);
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index 8ef21d9f9a00..3ba5aaa851e8 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -641,19 +641,6 @@ static const struct seq_operations exp_seq_ops = {
.stop = exp_seq_stop,
.show = exp_seq_show
};
-
-static int exp_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &exp_seq_ops,
- sizeof(struct ct_expect_iter_state));
-}
-
-static const struct file_operations exp_file_ops = {
- .open = exp_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif /* CONFIG_NF_CONNTRACK_PROCFS */
static int exp_proc_init(struct net *net)
@@ -663,8 +650,8 @@ static int exp_proc_init(struct net *net)
kuid_t root_uid;
kgid_t root_gid;
- proc = proc_create("nf_conntrack_expect", 0440, net->proc_net,
- &exp_file_ops);
+ proc = proc_create_net("nf_conntrack_expect", 0440, net->proc_net,
+ &exp_seq_ops, sizeof(struct ct_expect_iter_state));
if (!proc)
return -ENOMEM;
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 037fec54c850..b642c0b2495c 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -375,19 +375,6 @@ static const struct seq_operations ct_seq_ops = {
.show = ct_seq_show
};
-static int ct_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ct_seq_ops,
- sizeof(struct ct_iter_state));
-}
-
-static const struct file_operations ct_file_ops = {
- .open = ct_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
{
struct net *net = seq_file_net(seq);
@@ -467,26 +454,14 @@ static const struct seq_operations ct_cpu_seq_ops = {
.show = ct_cpu_seq_show,
};
-static int ct_cpu_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ct_cpu_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations ct_cpu_seq_fops = {
- .open = ct_cpu_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int nf_conntrack_standalone_init_proc(struct net *net)
{
struct proc_dir_entry *pde;
kuid_t root_uid;
kgid_t root_gid;
- pde = proc_create("nf_conntrack", 0440, net->proc_net, &ct_file_ops);
+ pde = proc_create_net("nf_conntrack", 0440, net->proc_net, &ct_seq_ops,
+ sizeof(struct ct_iter_state));
if (!pde)
goto out_nf_conntrack;
@@ -495,8 +470,8 @@ static int nf_conntrack_standalone_init_proc(struct net *net)
if (uid_valid(root_uid) && gid_valid(root_gid))
proc_set_user(pde, root_uid, root_gid);
- pde = proc_create("nf_conntrack", 0444, net->proc_net_stat,
- &ct_cpu_seq_fops);
+ pde = proc_create_net("nf_conntrack", 0444, net->proc_net_stat,
+ &ct_cpu_seq_ops, sizeof(struct seq_net_private));
if (!pde)
goto out_stat_nf_conntrack;
return 0;
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 6d0357817cda..426457047578 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -394,21 +394,6 @@ static const struct seq_operations nflog_seq_ops = {
.stop = seq_stop,
.show = seq_show,
};
-
-static int nflog_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &nflog_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations nflog_file_ops = {
- .open = nflog_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-
#endif /* PROC_FS */
#ifdef CONFIG_SYSCTL
@@ -549,8 +534,8 @@ static int __net_init nf_log_net_init(struct net *net)
int ret = -ENOMEM;
#ifdef CONFIG_PROC_FS
- if (!proc_create("nf_log", 0444,
- net->nf.proc_netfilter, &nflog_file_ops))
+ if (!proc_create_net("nf_log", 0444, net->nf.proc_netfilter,
+ &nflog_seq_ops, sizeof(struct seq_net_private)))
return ret;
#endif
ret = netfilter_log_sysctl_init(net);
diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c
index 6039b350abbe..8ff4d22f10b2 100644
--- a/net/netfilter/nf_synproxy_core.c
+++ b/net/netfilter/nf_synproxy_core.c
@@ -310,23 +310,10 @@ static const struct seq_operations synproxy_cpu_seq_ops = {
.show = synproxy_cpu_seq_show,
};
-static int synproxy_cpu_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &synproxy_cpu_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations synproxy_cpu_seq_fops = {
- .open = synproxy_cpu_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int __net_init synproxy_proc_init(struct net *net)
{
- if (!proc_create("synproxy", 0444, net->proc_net_stat,
- &synproxy_cpu_seq_fops))
+ if (!proc_create_net("synproxy", 0444, net->proc_net_stat,
+ &synproxy_cpu_seq_ops, sizeof(struct seq_net_private)))
return -ENOMEM;
return 0;
}
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 7b46aa4c478d..c14822b9729f 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -1046,20 +1046,6 @@ static const struct seq_operations nful_seq_ops = {
.stop = seq_stop,
.show = seq_show,
};
-
-static int nful_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &nful_seq_ops,
- sizeof(struct iter_state));
-}
-
-static const struct file_operations nful_file_ops = {
- .open = nful_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif /* PROC_FS */
static int __net_init nfnl_log_net_init(struct net *net)
@@ -1077,8 +1063,8 @@ static int __net_init nfnl_log_net_init(struct net *net)
spin_lock_init(&log->instances_lock);
#ifdef CONFIG_PROC_FS
- proc = proc_create("nfnetlink_log", 0440,
- net->nf.proc_netfilter, &nful_file_ops);
+ proc = proc_create_net("nfnetlink_log", 0440, net->nf.proc_netfilter,
+ &nful_seq_ops, sizeof(struct iter_state));
if (!proc)
return -ENOMEM;
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 74a04638ef03..494a9ab35cb6 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -1469,20 +1469,6 @@ static const struct seq_operations nfqnl_seq_ops = {
.stop = seq_stop,
.show = seq_show,
};
-
-static int nfqnl_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &nfqnl_seq_ops,
- sizeof(struct iter_state));
-}
-
-static const struct file_operations nfqnl_file_ops = {
- .open = nfqnl_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif /* PROC_FS */
static int __net_init nfnl_queue_net_init(struct net *net)
@@ -1496,8 +1482,8 @@ static int __net_init nfnl_queue_net_init(struct net *net)
spin_lock_init(&q->instances_lock);
#ifdef CONFIG_PROC_FS
- if (!proc_create("nfnetlink_queue", 0440,
- net->nf.proc_netfilter, &nfqnl_file_ops))
+ if (!proc_create_net("nfnetlink_queue", 0440, net->nf.proc_netfilter,
+ &nfqnl_seq_ops, sizeof(struct iter_state)))
return -ENOMEM;
#endif
nf_register_queue_handler(net, &nfqh);
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 3704101af27f..344dd01a5027 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1529,19 +1529,6 @@ static const struct seq_operations xt_table_seq_ops = {
.show = xt_table_seq_show,
};
-static int xt_table_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &xt_table_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations xt_table_ops = {
- .open = xt_table_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
/*
* Traverse state for ip{,6}_{tables,matches} for helping crossing
* the multi-AF mutexes.
@@ -1790,8 +1777,9 @@ int xt_proto_init(struct net *net, u_int8_t af)
strlcpy(buf, xt_prefix[af], sizeof(buf));
strlcat(buf, FORMAT_TABLES, sizeof(buf));
- proc = proc_create_data(buf, 0440, net->proc_net, &xt_table_ops,
- (void *)(unsigned long)af);
+ proc = proc_create_net_data(buf, 0440, net->proc_net, &xt_table_seq_ops,
+ sizeof(struct seq_net_private),
+ (void *)(unsigned long)af);
if (!proc)
goto out;
if (uid_valid(root_uid) && gid_valid(root_gid))
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 55342c4d5cec..f7c9df6fa872 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2635,21 +2635,6 @@ static const struct seq_operations netlink_seq_ops = {
.stop = netlink_seq_stop,
.show = netlink_seq_show,
};
-
-
-static int netlink_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &netlink_seq_ops,
- sizeof(struct nl_seq_iter));
-}
-
-static const struct file_operations netlink_seq_fops = {
- .open = netlink_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif
int netlink_register_notifier(struct notifier_block *nb)
@@ -2694,7 +2679,8 @@ static const struct net_proto_family netlink_family_ops = {
static int __net_init netlink_net_init(struct net *net)
{
#ifdef CONFIG_PROC_FS
- if (!proc_create("netlink", 0, net->proc_net, &netlink_seq_fops))
+ if (!proc_create_net("netlink", 0, net->proc_net, &netlink_seq_ops,
+ sizeof(struct nl_seq_iter)))
return -ENOMEM;
#endif
return 0;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 616cb9c18f88..4c2ddd42b4c2 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4521,20 +4521,6 @@ static const struct seq_operations packet_seq_ops = {
.stop = packet_seq_stop,
.show = packet_seq_show,
};
-
-static int packet_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &packet_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations packet_seq_fops = {
- .open = packet_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif
static int __net_init packet_net_init(struct net *net)
@@ -4542,7 +4528,8 @@ static int __net_init packet_net_init(struct net *net)
mutex_init(&net->packet.sklist_lock);
INIT_HLIST_HEAD(&net->packet.sklist);
- if (!proc_create("packet", 0, net->proc_net, &packet_seq_fops))
+ if (!proc_create_net("packet", 0, net->proc_net, &packet_seq_ops,
+ sizeof(struct seq_net_private)))
return -ENOMEM;
return 0;
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index 77787512fc32..6cb4f602ab71 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -320,7 +320,8 @@ static int __net_init phonet_init_net(struct net *net)
{
struct phonet_net *pnn = phonet_pernet(net);
- if (!proc_create("phonet", 0, net->proc_net, &pn_sock_seq_fops))
+ if (!proc_create_net("phonet", 0, net->proc_net, &pn_sock_seq_ops,
+ sizeof(struct seq_net_private)))
return -ENOMEM;
INIT_LIST_HEAD(&pnn->pndevs.list);
@@ -351,7 +352,8 @@ int __init phonet_device_init(void)
if (err)
return err;
- proc_create("pnresource", 0, init_net.proc_net, &pn_res_seq_fops);
+ proc_create_net("pnresource", 0, init_net.proc_net, &pn_res_seq_ops,
+ sizeof(struct seq_net_private));
register_netdevice_notifier(&phonet_device_notifier);
err = phonet_netlink_register();
if (err)
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index f9b40e6a18a5..30187990257f 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -620,25 +620,12 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations pn_sock_seq_ops = {
+const struct seq_operations pn_sock_seq_ops = {
.start = pn_sock_seq_start,
.next = pn_sock_seq_next,
.stop = pn_sock_seq_stop,
.show = pn_sock_seq_show,
};
-
-static int pn_sock_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &pn_sock_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-const struct file_operations pn_sock_seq_fops = {
- .open = pn_sock_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif
static struct {
@@ -802,23 +789,10 @@ static int pn_res_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations pn_res_seq_ops = {
+const struct seq_operations pn_res_seq_ops = {
.start = pn_res_seq_start,
.next = pn_res_seq_next,
.stop = pn_res_seq_stop,
.show = pn_res_seq_show,
};
-
-static int pn_res_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &pn_res_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-const struct file_operations pn_res_seq_fops = {
- .open = pn_res_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
#endif
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 90d7079e0aa9..bbb86770318e 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -1050,8 +1050,8 @@ void __rxrpc_queue_peer_error(struct rxrpc_peer *);
/*
* proc.c
*/
-extern const struct file_operations rxrpc_call_seq_fops;
-extern const struct file_operations rxrpc_connection_seq_fops;
+extern const struct seq_operations rxrpc_call_seq_ops;
+extern const struct seq_operations rxrpc_connection_seq_ops;
/*
* recvmsg.c
diff --git a/net/rxrpc/net_ns.c b/net/rxrpc/net_ns.c
index c7a023fb22d0..5d6a773db973 100644
--- a/net/rxrpc/net_ns.c
+++ b/net/rxrpc/net_ns.c
@@ -97,8 +97,11 @@ static __net_init int rxrpc_init_net(struct net *net)
if (!rxnet->proc_net)
goto err_proc;
- proc_create("calls", 0444, rxnet->proc_net, &rxrpc_call_seq_fops);
- proc_create("conns", 0444, rxnet->proc_net, &rxrpc_connection_seq_fops);
+ proc_create_net("calls", 0444, rxnet->proc_net, &rxrpc_call_seq_ops,
+ sizeof(struct seq_net_private));
+ proc_create_net("conns", 0444, rxnet->proc_net,
+ &rxrpc_connection_seq_ops,
+ sizeof(struct seq_net_private));
return 0;
err_proc:
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index 7e45db058823..d9fca8c4bcdc 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -115,26 +115,13 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations rxrpc_call_seq_ops = {
+const struct seq_operations rxrpc_call_seq_ops = {
.start = rxrpc_call_seq_start,
.next = rxrpc_call_seq_next,
.stop = rxrpc_call_seq_stop,
.show = rxrpc_call_seq_show,
};
-static int rxrpc_call_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &rxrpc_call_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-const struct file_operations rxrpc_call_seq_fops = {
- .open = rxrpc_call_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
/*
* generate a list of extant virtual connections in /proc/net/rxrpc_conns
*/
@@ -207,23 +194,9 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct seq_operations rxrpc_connection_seq_ops = {
+const struct seq_operations rxrpc_connection_seq_ops = {
.start = rxrpc_connection_seq_start,
.next = rxrpc_connection_seq_next,
.stop = rxrpc_connection_seq_stop,
.show = rxrpc_connection_seq_show,
};
-
-
-static int rxrpc_connection_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &rxrpc_connection_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-const struct file_operations rxrpc_connection_seq_fops = {
- .open = rxrpc_connection_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 1d9ccc6dab2b..009c185b71eb 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -225,21 +225,6 @@ static const struct seq_operations sctp_eps_ops = {
.show = sctp_eps_seq_show,
};
-
-/* Initialize the seq file operations for 'eps' object. */
-static int sctp_eps_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &sctp_eps_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations sctp_eps_seq_fops = {
- .open = sctp_eps_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
struct sctp_ht_iter {
struct seq_net_private p;
struct rhashtable_iter hti;
@@ -338,20 +323,6 @@ static const struct seq_operations sctp_assoc_ops = {
.show = sctp_assocs_seq_show,
};
-/* Initialize the seq file operations for 'assocs' object. */
-static int sctp_assocs_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &sctp_assoc_ops,
- sizeof(struct sctp_ht_iter));
-}
-
-static const struct file_operations sctp_assocs_seq_fops = {
- .open = sctp_assocs_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
static int sctp_remaddr_seq_show(struct seq_file *seq, void *v)
{
struct sctp_association *assoc;
@@ -431,19 +402,6 @@ static const struct seq_operations sctp_remaddr_ops = {
.show = sctp_remaddr_seq_show,
};
-static int sctp_remaddr_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &sctp_remaddr_ops,
- sizeof(struct sctp_ht_iter));
-}
-
-static const struct file_operations sctp_remaddr_seq_fops = {
- .open = sctp_remaddr_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
/* Set up the proc fs entry for the SCTP protocol. */
int __net_init sctp_proc_init(struct net *net)
{
@@ -453,14 +411,14 @@ int __net_init sctp_proc_init(struct net *net)
if (!proc_create("snmp", 0444, net->sctp.proc_net_sctp,
&sctp_snmp_seq_fops))
goto cleanup;
- if (!proc_create("eps", 0444, net->sctp.proc_net_sctp,
- &sctp_eps_seq_fops))
+ if (!proc_create_net("eps", 0444, net->sctp.proc_net_sctp,
+ &sctp_eps_ops, sizeof(struct seq_net_private)))
goto cleanup;
- if (!proc_create("assocs", 0444, net->sctp.proc_net_sctp,
- &sctp_assocs_seq_fops))
+ if (!proc_create_net("assocs", 0444, net->sctp.proc_net_sctp,
+ &sctp_assoc_ops, sizeof(struct sctp_ht_iter)))
goto cleanup;
- if (!proc_create("remaddr", 0444, net->sctp.proc_net_sctp,
- &sctp_remaddr_seq_fops))
+ if (!proc_create_net("remaddr", 0444, net->sctp.proc_net_sctp,
+ &sctp_remaddr_ops, sizeof(struct sctp_ht_iter)))
goto cleanup;
return 0;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 68bb70a62afe..e5473c03d667 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2852,20 +2852,6 @@ static const struct seq_operations unix_seq_ops = {
.stop = unix_seq_stop,
.show = unix_seq_show,
};
-
-static int unix_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &unix_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations unix_seq_fops = {
- .open = unix_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
#endif
static const struct net_proto_family unix_family_ops = {
@@ -2884,7 +2870,8 @@ static int __net_init unix_net_init(struct net *net)
goto out;
#ifdef CONFIG_PROC_FS
- if (!proc_create("unix", 0, net->proc_net, &unix_seq_fops)) {
+ if (!proc_create_net("unix", 0, net->proc_net, &unix_seq_ops,
+ sizeof(struct seq_net_private))) {
unix_sysctl_unregister(net);
goto out;
}
diff --git a/net/wireless/wext-proc.c b/net/wireless/wext-proc.c
index b4c464594a5e..cadcf8613af2 100644
--- a/net/wireless/wext-proc.c
+++ b/net/wireless/wext-proc.c
@@ -126,24 +126,11 @@ static const struct seq_operations wireless_seq_ops = {
.show = wireless_dev_seq_show,
};
-static int seq_open_wireless(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &wireless_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations wireless_seq_fops = {
- .open = seq_open_wireless,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
int __net_init wext_proc_init(struct net *net)
{
/* Create /proc/net/wireless entry */
- if (!proc_create("wireless", 0444, net->proc_net,
- &wireless_seq_fops))
+ if (!proc_create_net("wireless", 0444, net->proc_net,
+ &wireless_seq_ops, sizeof(struct seq_net_private)))
return -ENOMEM;
return 0;
--
2.17.0
^ permalink raw reply related
* [PATCH 11/39] netfilter/x_tables: simplify ѕeq_file code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Just use the address family from the proc private data instead of copying
it into per-file data.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/netfilter/x_tables.c | 39 +++++++++++----------------------------
1 file changed, 11 insertions(+), 28 deletions(-)
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 71325fef647d..3704101af27f 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -1489,15 +1489,10 @@ void *xt_unregister_table(struct xt_table *table)
EXPORT_SYMBOL_GPL(xt_unregister_table);
#ifdef CONFIG_PROC_FS
-struct xt_names_priv {
- struct seq_net_private p;
- u_int8_t af;
-};
static void *xt_table_seq_start(struct seq_file *seq, loff_t *pos)
{
- struct xt_names_priv *priv = seq->private;
struct net *net = seq_file_net(seq);
- u_int8_t af = priv->af;
+ u_int8_t af = (unsigned long)PDE_DATA(file_inode(seq->file));
mutex_lock(&xt[af].mutex);
return seq_list_start(&net->xt.tables[af], *pos);
@@ -1505,17 +1500,15 @@ static void *xt_table_seq_start(struct seq_file *seq, loff_t *pos)
static void *xt_table_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct xt_names_priv *priv = seq->private;
struct net *net = seq_file_net(seq);
- u_int8_t af = priv->af;
+ u_int8_t af = (unsigned long)PDE_DATA(file_inode(seq->file));
return seq_list_next(v, &net->xt.tables[af], pos);
}
static void xt_table_seq_stop(struct seq_file *seq, void *v)
{
- struct xt_names_priv *priv = seq->private;
- u_int8_t af = priv->af;
+ u_int8_t af = (unsigned long)PDE_DATA(file_inode(seq->file));
mutex_unlock(&xt[af].mutex);
}
@@ -1538,16 +1531,8 @@ static const struct seq_operations xt_table_seq_ops = {
static int xt_table_open(struct inode *inode, struct file *file)
{
- int ret;
- struct xt_names_priv *priv;
-
- ret = seq_open_net(inode, file, &xt_table_seq_ops,
- sizeof(struct xt_names_priv));
- if (!ret) {
- priv = ((struct seq_file *)file->private_data)->private;
- priv->af = (unsigned long)PDE_DATA(inode);
- }
- return ret;
+ return seq_open_net(inode, file, &xt_table_seq_ops,
+ sizeof(struct seq_net_private));
}
static const struct file_operations xt_table_ops = {
@@ -1563,7 +1548,7 @@ static const struct file_operations xt_table_ops = {
*/
struct nf_mttg_trav {
struct list_head *head, *curr;
- uint8_t class, nfproto;
+ uint8_t class;
};
enum {
@@ -1580,6 +1565,7 @@ static void *xt_mttg_seq_next(struct seq_file *seq, void *v, loff_t *ppos,
[MTTG_TRAV_NFP_UNSPEC] = MTTG_TRAV_NFP_SPEC,
[MTTG_TRAV_NFP_SPEC] = MTTG_TRAV_DONE,
};
+ uint8_t nfproto = (unsigned long)PDE_DATA(file_inode(seq->file));
struct nf_mttg_trav *trav = seq->private;
switch (trav->class) {
@@ -1594,9 +1580,9 @@ static void *xt_mttg_seq_next(struct seq_file *seq, void *v, loff_t *ppos,
if (trav->curr != trav->head)
break;
mutex_unlock(&xt[NFPROTO_UNSPEC].mutex);
- mutex_lock(&xt[trav->nfproto].mutex);
+ mutex_lock(&xt[nfproto].mutex);
trav->head = trav->curr = is_target ?
- &xt[trav->nfproto].target : &xt[trav->nfproto].match;
+ &xt[nfproto].target : &xt[nfproto].match;
trav->class = next_class[trav->class];
break;
case MTTG_TRAV_NFP_SPEC:
@@ -1628,6 +1614,7 @@ static void *xt_mttg_seq_start(struct seq_file *seq, loff_t *pos,
static void xt_mttg_seq_stop(struct seq_file *seq, void *v)
{
+ uint8_t nfproto = (unsigned long)PDE_DATA(file_inode(seq->file));
struct nf_mttg_trav *trav = seq->private;
switch (trav->class) {
@@ -1635,7 +1622,7 @@ static void xt_mttg_seq_stop(struct seq_file *seq, void *v)
mutex_unlock(&xt[NFPROTO_UNSPEC].mutex);
break;
case MTTG_TRAV_NFP_SPEC:
- mutex_unlock(&xt[trav->nfproto].mutex);
+ mutex_unlock(&xt[nfproto].mutex);
break;
}
}
@@ -1680,8 +1667,6 @@ static int xt_match_open(struct inode *inode, struct file *file)
trav = __seq_open_private(file, &xt_match_seq_ops, sizeof(*trav));
if (!trav)
return -ENOMEM;
-
- trav->nfproto = (unsigned long)PDE_DATA(inode);
return 0;
}
@@ -1732,8 +1717,6 @@ static int xt_target_open(struct inode *inode, struct file *file)
trav = __seq_open_private(file, &xt_target_seq_ops, sizeof(*trav));
if (!trav)
return -ENOMEM;
-
- trav->nfproto = (unsigned long)PDE_DATA(inode);
return 0;
}
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 10/39] net/kcm: simplify proc registration
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: Alexey Dobriyan, Greg Kroah-Hartman, Jiri Slaby, Corey Minyard,
Alessandro Zummo, Alexandre Belloni, linux-acpi, drbd-dev,
linux-ide, netdev, linux-rtc, megaraidlinux.pdl, linux-scsi,
devel, linux-afs, linux-ext4, jfs-discussion, netfilter-devel,
linux-kernel
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Remove a couple indirections to make the code look like most other
protocols.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/kcm/kcmproc.c | 71 ++++++++++++-----------------------------------
1 file changed, 17 insertions(+), 54 deletions(-)
diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c
index 1fac92543094..6d0667e62baf 100644
--- a/net/kcm/kcmproc.c
+++ b/net/kcm/kcmproc.c
@@ -15,12 +15,6 @@
#include <net/tcp.h>
#ifdef CONFIG_PROC_FS
-struct kcm_seq_muxinfo {
- char *name;
- const struct file_operations *seq_fops;
- const struct seq_operations seq_ops;
-};
-
static struct kcm_mux *kcm_get_first(struct seq_file *seq)
{
struct net *net = seq_file_net(seq);
@@ -86,14 +80,6 @@ struct kcm_proc_mux_state {
int idx;
};
-static int kcm_seq_open(struct inode *inode, struct file *file)
-{
- struct kcm_seq_muxinfo *muxinfo = PDE_DATA(inode);
-
- return seq_open_net(inode, file, &muxinfo->seq_ops,
- sizeof(struct kcm_proc_mux_state));
-}
-
static void kcm_format_mux_header(struct seq_file *seq)
{
struct net *net = seq_file_net(seq);
@@ -246,6 +232,19 @@ static int kcm_seq_show(struct seq_file *seq, void *v)
return 0;
}
+static const struct seq_operations kcm_seq_ops = {
+ .show = kcm_seq_show,
+ .start = kcm_seq_start,
+ .next = kcm_seq_next,
+ .stop = kcm_seq_stop,
+};
+
+static int kcm_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &kcm_seq_ops,
+ sizeof(struct kcm_proc_mux_state));
+}
+
static const struct file_operations kcm_seq_fops = {
.open = kcm_seq_open,
.read = seq_read,
@@ -253,37 +252,6 @@ static const struct file_operations kcm_seq_fops = {
.release = seq_release_net,
};
-static struct kcm_seq_muxinfo kcm_seq_muxinfo = {
- .name = "kcm",
- .seq_fops = &kcm_seq_fops,
- .seq_ops = {
- .show = kcm_seq_show,
- .start = kcm_seq_start,
- .next = kcm_seq_next,
- .stop = kcm_seq_stop,
- }
-};
-
-static int kcm_proc_register(struct net *net, struct kcm_seq_muxinfo *muxinfo)
-{
- struct proc_dir_entry *p;
- int rc = 0;
-
- p = proc_create_data(muxinfo->name, 0444, net->proc_net,
- muxinfo->seq_fops, muxinfo);
- if (!p)
- rc = -ENOMEM;
- return rc;
-}
-EXPORT_SYMBOL(kcm_proc_register);
-
-static void kcm_proc_unregister(struct net *net,
- struct kcm_seq_muxinfo *muxinfo)
-{
- remove_proc_entry(muxinfo->name, net->proc_net);
-}
-EXPORT_SYMBOL(kcm_proc_unregister);
-
static int kcm_stats_seq_show(struct seq_file *seq, void *v)
{
struct kcm_psock_stats psock_stats;
@@ -404,16 +372,11 @@ static const struct file_operations kcm_stats_seq_fops = {
static int kcm_proc_init_net(struct net *net)
{
- int err;
-
if (!proc_create("kcm_stats", 0444, net->proc_net,
- &kcm_stats_seq_fops)) {
- err = -ENOMEM;
+ &kcm_stats_seq_fops))
goto out_kcm_stats;
- }
- err = kcm_proc_register(net, &kcm_seq_muxinfo);
- if (err)
+ if (!proc_create("kcm", 0444, net->proc_net, &kcm_seq_fops))
goto out_kcm;
return 0;
@@ -421,12 +384,12 @@ static int kcm_proc_init_net(struct net *net)
out_kcm:
remove_proc_entry("kcm_stats", net->proc_net);
out_kcm_stats:
- return err;
+ return -ENOMEM;
}
static void kcm_proc_exit_net(struct net *net)
{
- kcm_proc_unregister(net, &kcm_seq_muxinfo);
+ remove_proc_entry("kcm", net->proc_net);
remove_proc_entry("kcm_stats", net->proc_net);
}
--
2.17.0
^ permalink raw reply related
* [PATCH 09/39] ipv6/flowlabel: simplify pid namespace lookup
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
The shole seq_file sequence already operates under a single RCU lock pair,
so move the pid namespace lookup into it, and stop grabbing a reference
and remove all kinds of boilerplate code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/ipv6/ip6_flowlabel.c | 28 +++++-----------------------
1 file changed, 5 insertions(+), 23 deletions(-)
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index c05c4e82a7ca..a9f221d45ef9 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -754,7 +754,10 @@ static struct ip6_flowlabel *ip6fl_get_idx(struct seq_file *seq, loff_t pos)
static void *ip6fl_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(RCU)
{
+ struct ip6fl_iter_state *state = ip6fl_seq_private(seq);
+
rcu_read_lock_bh();
+ state->pid_ns = task_active_pid_ns(current);
return *pos ? ip6fl_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
}
@@ -810,36 +813,15 @@ static const struct seq_operations ip6fl_seq_ops = {
static int ip6fl_seq_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
- struct ip6fl_iter_state *state;
- int err;
-
- err = seq_open_net(inode, file, &ip6fl_seq_ops,
+ return seq_open_net(inode, file, &ip6fl_seq_ops,
sizeof(struct ip6fl_iter_state));
-
- if (!err) {
- seq = file->private_data;
- state = ip6fl_seq_private(seq);
- rcu_read_lock();
- state->pid_ns = get_pid_ns(task_active_pid_ns(current));
- rcu_read_unlock();
- }
- return err;
-}
-
-static int ip6fl_seq_release(struct inode *inode, struct file *file)
-{
- struct seq_file *seq = file->private_data;
- struct ip6fl_iter_state *state = ip6fl_seq_private(seq);
- put_pid_ns(state->pid_ns);
- return seq_release_net(inode, file);
}
static const struct file_operations ip6fl_seq_fops = {
.open = ip6fl_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = ip6fl_seq_release,
+ .release = seq_release_net,
};
static int __net_init ip6_flowlabel_proc_init(struct net *net)
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 08/39] ipv{4,6}/raw: simplify ѕeq_file code
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: Alexey Dobriyan, Greg Kroah-Hartman, Jiri Slaby, Corey Minyard,
Alessandro Zummo, Alexandre Belloni, linux-acpi, drbd-dev,
linux-ide, netdev, linux-rtc, megaraidlinux.pdl, linux-scsi,
devel, linux-afs, linux-ext4, jfs-discussion, netfilter-devel,
linux-kernel
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Pass the hashtable to the proc private data instead of copying
it into the per-file private data.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/net/raw.h | 4 ----
net/ipv4/raw.c | 36 ++++++++++++------------------------
net/ipv6/raw.c | 6 ++++--
3 files changed, 16 insertions(+), 30 deletions(-)
diff --git a/include/net/raw.h b/include/net/raw.h
index 99d26d0c4a19..9c9fa98a91a4 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -48,7 +48,6 @@ void raw_proc_exit(void);
struct raw_iter_state {
struct seq_net_private p;
int bucket;
- struct raw_hashinfo *h;
};
static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
@@ -58,9 +57,6 @@ static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
void *raw_seq_start(struct seq_file *seq, loff_t *pos);
void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void raw_seq_stop(struct seq_file *seq, void *v);
-int raw_seq_open(struct inode *ino, struct file *file,
- struct raw_hashinfo *h, const struct seq_operations *ops);
-
#endif
int raw_hash_sk(struct sock *sk);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 1b4d3355624a..ae57962b31e3 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -1003,11 +1003,12 @@ struct proto raw_prot = {
static struct sock *raw_get_first(struct seq_file *seq)
{
struct sock *sk;
+ struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file));
struct raw_iter_state *state = raw_seq_private(seq);
for (state->bucket = 0; state->bucket < RAW_HTABLE_SIZE;
++state->bucket) {
- sk_for_each(sk, &state->h->ht[state->bucket])
+ sk_for_each(sk, &h->ht[state->bucket])
if (sock_net(sk) == seq_file_net(seq))
goto found;
}
@@ -1018,6 +1019,7 @@ static struct sock *raw_get_first(struct seq_file *seq)
static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
{
+ struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file));
struct raw_iter_state *state = raw_seq_private(seq);
do {
@@ -1027,7 +1029,7 @@ static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
} while (sk && sock_net(sk) != seq_file_net(seq));
if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
- sk = sk_head(&state->h->ht[state->bucket]);
+ sk = sk_head(&h->ht[state->bucket]);
goto try_again;
}
return sk;
@@ -1045,9 +1047,9 @@ static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
void *raw_seq_start(struct seq_file *seq, loff_t *pos)
{
- struct raw_iter_state *state = raw_seq_private(seq);
+ struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file));
- read_lock(&state->h->lock);
+ read_lock(&h->lock);
return *pos ? raw_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
}
EXPORT_SYMBOL_GPL(raw_seq_start);
@@ -1067,9 +1069,9 @@ EXPORT_SYMBOL_GPL(raw_seq_next);
void raw_seq_stop(struct seq_file *seq, void *v)
{
- struct raw_iter_state *state = raw_seq_private(seq);
+ struct raw_hashinfo *h = PDE_DATA(file_inode(seq->file));
- read_unlock(&state->h->lock);
+ read_unlock(&h->lock);
}
EXPORT_SYMBOL_GPL(raw_seq_stop);
@@ -1110,25 +1112,10 @@ static const struct seq_operations raw_seq_ops = {
.show = raw_seq_show,
};
-int raw_seq_open(struct inode *ino, struct file *file,
- struct raw_hashinfo *h, const struct seq_operations *ops)
-{
- int err;
- struct raw_iter_state *i;
-
- err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state));
- if (err < 0)
- return err;
-
- i = raw_seq_private((struct seq_file *)file->private_data);
- i->h = h;
- return 0;
-}
-EXPORT_SYMBOL_GPL(raw_seq_open);
-
static int raw_v4_seq_open(struct inode *inode, struct file *file)
{
- return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops);
+ return seq_open_net(inode, file, &raw_seq_ops,
+ sizeof(struct raw_iter_state));
}
static const struct file_operations raw_seq_fops = {
@@ -1140,7 +1127,8 @@ static const struct file_operations raw_seq_fops = {
static __net_init int raw_init_net(struct net *net)
{
- if (!proc_create("raw", 0444, net->proc_net, &raw_seq_fops))
+ if (!proc_create_data("raw", 0444, net->proc_net, &raw_seq_fops,
+ &raw_v4_hashinfo))
return -ENOMEM;
return 0;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 5eb9b08947ed..dade69bf61e6 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1306,7 +1306,8 @@ static const struct seq_operations raw6_seq_ops = {
static int raw6_seq_open(struct inode *inode, struct file *file)
{
- return raw_seq_open(inode, file, &raw_v6_hashinfo, &raw6_seq_ops);
+ return seq_open_net(inode, file, &raw6_seq_ops,
+ sizeof(struct raw_iter_state));
}
static const struct file_operations raw6_seq_fops = {
@@ -1318,7 +1319,8 @@ static const struct file_operations raw6_seq_fops = {
static int __net_init raw6_init_net(struct net *net)
{
- if (!proc_create("raw6", 0444, net->proc_net, &raw6_seq_fops))
+ if (!proc_create_data("raw6", 0444, net->proc_net, &raw6_seq_fops,
+ &raw_v6_hashinfo))
return -ENOMEM;
return 0;
--
2.17.0
^ permalink raw reply related
* [PATCH 07/39] ipv{4, 6}/ping: simplify proc file creation
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Remove the pointless ping_seq_afinfo indirection and make the code look
like most other protocols.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/net/ping.h | 11 ----------
net/ipv4/ping.c | 50 +++++++++++++---------------------------------
net/ipv6/ping.c | 35 +++++++++++++++++++++-----------
3 files changed, 37 insertions(+), 59 deletions(-)
diff --git a/include/net/ping.h b/include/net/ping.h
index 4cd90d6b5c25..fd080e043a6e 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -83,20 +83,9 @@ int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
bool ping_rcv(struct sk_buff *skb);
#ifdef CONFIG_PROC_FS
-struct ping_seq_afinfo {
- char *name;
- sa_family_t family;
- const struct file_operations *seq_fops;
- const struct seq_operations seq_ops;
-};
-
-extern const struct file_operations ping_seq_fops;
-
void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);
void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);
void ping_seq_stop(struct seq_file *seq, void *v);
-int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo);
-void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo);
int __init ping_proc_init(void);
void ping_proc_exit(void);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 05e47d777009..83170ebf5dfc 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1147,58 +1147,36 @@ static int ping_v4_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static int ping_seq_open(struct inode *inode, struct file *file)
+static const struct seq_operations ping_v4_seq_ops = {
+ .start = ping_v4_seq_start,
+ .show = ping_v4_seq_show,
+ .next = ping_seq_next,
+ .stop = ping_seq_stop,
+};
+
+static int ping_v4_seq_open(struct inode *inode, struct file *file)
{
- struct ping_seq_afinfo *afinfo = PDE_DATA(inode);
- return seq_open_net(inode, file, &afinfo->seq_ops,
+ return seq_open_net(inode, file, &ping_v4_seq_ops,
sizeof(struct ping_iter_state));
}
-const struct file_operations ping_seq_fops = {
- .open = ping_seq_open,
+const struct file_operations ping_v4_seq_fops = {
+ .open = ping_v4_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net,
};
-EXPORT_SYMBOL_GPL(ping_seq_fops);
-
-static struct ping_seq_afinfo ping_v4_seq_afinfo = {
- .name = "icmp",
- .family = AF_INET,
- .seq_fops = &ping_seq_fops,
- .seq_ops = {
- .start = ping_v4_seq_start,
- .show = ping_v4_seq_show,
- .next = ping_seq_next,
- .stop = ping_seq_stop,
- },
-};
-int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo)
+static int __net_init ping_v4_proc_init_net(struct net *net)
{
- struct proc_dir_entry *p;
- p = proc_create_data(afinfo->name, 0444, net->proc_net,
- afinfo->seq_fops, afinfo);
- if (!p)
+ if (!proc_create("icmp", 0444, net->proc_net, &ping_v4_seq_fops))
return -ENOMEM;
return 0;
}
-EXPORT_SYMBOL_GPL(ping_proc_register);
-
-void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo)
-{
- remove_proc_entry(afinfo->name, net->proc_net);
-}
-EXPORT_SYMBOL_GPL(ping_proc_unregister);
-
-static int __net_init ping_v4_proc_init_net(struct net *net)
-{
- return ping_proc_register(net, &ping_v4_seq_afinfo);
-}
static void __net_exit ping_v4_proc_exit_net(struct net *net)
{
- ping_proc_unregister(net, &ping_v4_seq_afinfo);
+ remove_proc_entry("icmp", net->proc_net);
}
static struct pernet_operations ping_v4_net_ops = {
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 746eeae7f581..45d5c8e0f2bf 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -24,6 +24,7 @@
#include <net/protocol.h>
#include <net/udp.h>
#include <net/transp_v6.h>
+#include <linux/proc_fs.h>
#include <net/ping.h>
/* Compatibility glue so we can support IPv6 when it's compiled as a module */
@@ -215,26 +216,36 @@ static int ping_v6_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static struct ping_seq_afinfo ping_v6_seq_afinfo = {
- .name = "icmp6",
- .family = AF_INET6,
- .seq_fops = &ping_seq_fops,
- .seq_ops = {
- .start = ping_v6_seq_start,
- .show = ping_v6_seq_show,
- .next = ping_seq_next,
- .stop = ping_seq_stop,
- },
+static const struct seq_operations ping_v6_seq_ops = {
+ .start = ping_v6_seq_start,
+ .show = ping_v6_seq_show,
+ .next = ping_seq_next,
+ .stop = ping_seq_stop,
+};
+
+static int ping_v6_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &ping_v6_seq_ops,
+ sizeof(struct ping_iter_state));
+}
+
+const struct file_operations ping_v6_seq_fops = {
+ .open = ping_v6_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_net,
};
static int __net_init ping_v6_proc_init_net(struct net *net)
{
- return ping_proc_register(net, &ping_v6_seq_afinfo);
+ if (!proc_create("icmp6", 0444, net->proc_net, &ping_v6_seq_fops))
+ return -ENOMEM;
+ return 0;
}
static void __net_init ping_v6_proc_exit_net(struct net *net)
{
- return ping_proc_unregister(net, &ping_v6_seq_afinfo);
+ remove_proc_entry("icmp6", net->proc_net);
}
static struct pernet_operations ping_v6_net_ops = {
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 06/39] ipv{4, 6}/tcp: simplify procfs registration
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Avoid most of the afinfo indirections and just call the proc helpers
directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/net/tcp.h | 11 ++----
net/ipv4/tcp_ipv4.c | 85 +++++++++++++++++----------------------------
net/ipv6/tcp_ipv6.c | 27 +++++++++-----
3 files changed, 53 insertions(+), 70 deletions(-)
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 9c9b3768b350..51dc7a26a2fa 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1747,27 +1747,22 @@ enum tcp_seq_states {
TCP_SEQ_STATE_ESTABLISHED,
};
-int tcp_seq_open(struct inode *inode, struct file *file);
+void *tcp_seq_start(struct seq_file *seq, loff_t *pos);
+void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+void tcp_seq_stop(struct seq_file *seq, void *v);
struct tcp_seq_afinfo {
- char *name;
sa_family_t family;
- const struct file_operations *seq_fops;
- struct seq_operations seq_ops;
};
struct tcp_iter_state {
struct seq_net_private p;
- sa_family_t family;
enum tcp_seq_states state;
struct sock *syn_wait_sk;
int bucket, offset, sbucket, num;
loff_t last_pos;
};
-int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);
-void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo);
-
extern struct request_sock_ops tcp_request_sock_ops;
extern struct request_sock_ops tcp6_request_sock_ops;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index f70586b50838..645f259d0972 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1961,6 +1961,7 @@ EXPORT_SYMBOL(tcp_v4_destroy_sock);
*/
static void *listening_get_next(struct seq_file *seq, void *cur)
{
+ struct tcp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct tcp_iter_state *st = seq->private;
struct net *net = seq_file_net(seq);
struct inet_listen_hashbucket *ilb;
@@ -1983,7 +1984,7 @@ static void *listening_get_next(struct seq_file *seq, void *cur)
sk_for_each_from(sk) {
if (!net_eq(sock_net(sk), net))
continue;
- if (sk->sk_family == st->family)
+ if (sk->sk_family == afinfo->family)
return sk;
}
spin_unlock(&ilb->lock);
@@ -2020,6 +2021,7 @@ static inline bool empty_bucket(const struct tcp_iter_state *st)
*/
static void *established_get_first(struct seq_file *seq)
{
+ struct tcp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct tcp_iter_state *st = seq->private;
struct net *net = seq_file_net(seq);
void *rc = NULL;
@@ -2036,7 +2038,7 @@ static void *established_get_first(struct seq_file *seq)
spin_lock_bh(lock);
sk_nulls_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) {
- if (sk->sk_family != st->family ||
+ if (sk->sk_family != afinfo->family ||
!net_eq(sock_net(sk), net)) {
continue;
}
@@ -2051,6 +2053,7 @@ static void *established_get_first(struct seq_file *seq)
static void *established_get_next(struct seq_file *seq, void *cur)
{
+ struct tcp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct sock *sk = cur;
struct hlist_nulls_node *node;
struct tcp_iter_state *st = seq->private;
@@ -2062,7 +2065,8 @@ static void *established_get_next(struct seq_file *seq, void *cur)
sk = sk_nulls_next(sk);
sk_nulls_for_each_from(sk, node) {
- if (sk->sk_family == st->family && net_eq(sock_net(sk), net))
+ if (sk->sk_family == afinfo->family &&
+ net_eq(sock_net(sk), net))
return sk;
}
@@ -2135,7 +2139,7 @@ static void *tcp_seek_last_pos(struct seq_file *seq)
return rc;
}
-static void *tcp_seq_start(struct seq_file *seq, loff_t *pos)
+void *tcp_seq_start(struct seq_file *seq, loff_t *pos)
{
struct tcp_iter_state *st = seq->private;
void *rc;
@@ -2156,8 +2160,9 @@ static void *tcp_seq_start(struct seq_file *seq, loff_t *pos)
st->last_pos = *pos;
return rc;
}
+EXPORT_SYMBOL(tcp_seq_start);
-static void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct tcp_iter_state *st = seq->private;
void *rc = NULL;
@@ -2186,8 +2191,9 @@ static void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
st->last_pos = *pos;
return rc;
}
+EXPORT_SYMBOL(tcp_seq_next);
-static void tcp_seq_stop(struct seq_file *seq, void *v)
+void tcp_seq_stop(struct seq_file *seq, void *v)
{
struct tcp_iter_state *st = seq->private;
@@ -2202,47 +2208,7 @@ static void tcp_seq_stop(struct seq_file *seq, void *v)
break;
}
}
-
-int tcp_seq_open(struct inode *inode, struct file *file)
-{
- struct tcp_seq_afinfo *afinfo = PDE_DATA(inode);
- struct tcp_iter_state *s;
- int err;
-
- err = seq_open_net(inode, file, &afinfo->seq_ops,
- sizeof(struct tcp_iter_state));
- if (err < 0)
- return err;
-
- s = ((struct seq_file *)file->private_data)->private;
- s->family = afinfo->family;
- s->last_pos = 0;
- return 0;
-}
-EXPORT_SYMBOL(tcp_seq_open);
-
-int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo)
-{
- int rc = 0;
- struct proc_dir_entry *p;
-
- afinfo->seq_ops.start = tcp_seq_start;
- afinfo->seq_ops.next = tcp_seq_next;
- afinfo->seq_ops.stop = tcp_seq_stop;
-
- p = proc_create_data(afinfo->name, 0444, net->proc_net,
- afinfo->seq_fops, afinfo);
- if (!p)
- rc = -ENOMEM;
- return rc;
-}
-EXPORT_SYMBOL(tcp_proc_register);
-
-void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo)
-{
- remove_proc_entry(afinfo->name, net->proc_net);
-}
-EXPORT_SYMBOL(tcp_proc_unregister);
+EXPORT_SYMBOL(tcp_seq_stop);
static void get_openreq4(const struct request_sock *req,
struct seq_file *f, int i)
@@ -2377,6 +2343,19 @@ static int tcp4_seq_show(struct seq_file *seq, void *v)
return 0;
}
+static const struct seq_operations tcp4_seq_ops = {
+ .show = tcp4_seq_show,
+ .start = tcp_seq_start,
+ .next = tcp_seq_next,
+ .stop = tcp_seq_stop,
+};
+
+static int tcp_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &tcp4_seq_ops,
+ sizeof(struct tcp_iter_state));
+}
+
static const struct file_operations tcp_afinfo_seq_fops = {
.open = tcp_seq_open,
.read = seq_read,
@@ -2385,22 +2364,20 @@ static const struct file_operations tcp_afinfo_seq_fops = {
};
static struct tcp_seq_afinfo tcp4_seq_afinfo = {
- .name = "tcp",
.family = AF_INET,
- .seq_fops = &tcp_afinfo_seq_fops,
- .seq_ops = {
- .show = tcp4_seq_show,
- },
};
static int __net_init tcp4_proc_init_net(struct net *net)
{
- return tcp_proc_register(net, &tcp4_seq_afinfo);
+ if (!proc_create_data("tcp", 0444, net->proc_net,
+ &tcp_afinfo_seq_fops, &tcp4_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
static void __net_exit tcp4_proc_exit_net(struct net *net)
{
- tcp_proc_unregister(net, &tcp4_seq_afinfo);
+ remove_proc_entry("tcp", net->proc_net);
}
static struct pernet_operations tcp4_net_ops = {
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 6d664d83cd16..c0329bb1692f 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1909,30 +1909,41 @@ static int tcp6_seq_show(struct seq_file *seq, void *v)
return 0;
}
+static const struct seq_operations tcp6_seq_ops = {
+ .show = tcp6_seq_show,
+ .start = tcp_seq_start,
+ .next = tcp_seq_next,
+ .stop = tcp_seq_stop,
+};
+
+static int tcp6_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &tcp6_seq_ops,
+ sizeof(struct tcp_iter_state));
+}
+
static const struct file_operations tcp6_afinfo_seq_fops = {
- .open = tcp_seq_open,
+ .open = tcp6_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net
};
static struct tcp_seq_afinfo tcp6_seq_afinfo = {
- .name = "tcp6",
.family = AF_INET6,
- .seq_fops = &tcp6_afinfo_seq_fops,
- .seq_ops = {
- .show = tcp6_seq_show,
- },
};
int __net_init tcp6_proc_init(struct net *net)
{
- return tcp_proc_register(net, &tcp6_seq_afinfo);
+ if (!proc_create_data("tcp6", 0444, net->proc_net,
+ &tcp6_afinfo_seq_fops, &tcp6_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
void tcp6_proc_exit(struct net *net)
{
- tcp_proc_unregister(net, &tcp6_seq_afinfo);
+ remove_proc_entry("tcp6", net->proc_net);
}
#endif
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 05/39] ipv{4, 6}/udp{, lite}: simplify proc registration
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Remove a couple indirections to make the code look like most other
protocols.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
include/net/udp.h | 20 ++++------
net/ipv4/udp.c | 99 +++++++++++++++++-----------------------------
net/ipv4/udplite.c | 21 +++-------
net/ipv6/udp.c | 30 +++++++++-----
net/ipv6/udplite.c | 21 +++-------
5 files changed, 78 insertions(+), 113 deletions(-)
diff --git a/include/net/udp.h b/include/net/udp.h
index 0676b272f6ac..093cd323f66a 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -408,31 +408,27 @@ do { \
#define __UDPX_INC_STATS(sk, field) __UDP_INC_STATS(sock_net(sk), field, 0)
#endif
-/* /proc */
-int udp_seq_open(struct inode *inode, struct file *file);
-
+#ifdef CONFIG_PROC_FS
struct udp_seq_afinfo {
- char *name;
sa_family_t family;
struct udp_table *udp_table;
- const struct file_operations *seq_fops;
- struct seq_operations seq_ops;
};
struct udp_iter_state {
struct seq_net_private p;
- sa_family_t family;
int bucket;
- struct udp_table *udp_table;
};
-#ifdef CONFIG_PROC_FS
-int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo);
-void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo);
+void *udp_seq_start(struct seq_file *seq, loff_t *pos);
+void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+void udp_seq_stop(struct seq_file *seq, void *v);
+
+extern const struct file_operations udp_afinfo_seq_fops;
+extern const struct file_operations udp6_afinfo_seq_fops;
int udp4_proc_init(void);
void udp4_proc_exit(void);
-#endif
+#endif /* CONFIG_PROC_FS */
int udpv4_offload_init(void);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 24b5c59b1c53..d48790ddb6cf 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2579,12 +2579,13 @@ EXPORT_SYMBOL(udp_prot);
static struct sock *udp_get_first(struct seq_file *seq, int start)
{
struct sock *sk;
+ struct udp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct udp_iter_state *state = seq->private;
struct net *net = seq_file_net(seq);
- for (state->bucket = start; state->bucket <= state->udp_table->mask;
+ for (state->bucket = start; state->bucket <= afinfo->udp_table->mask;
++state->bucket) {
- struct udp_hslot *hslot = &state->udp_table->hash[state->bucket];
+ struct udp_hslot *hslot = &afinfo->udp_table->hash[state->bucket];
if (hlist_empty(&hslot->head))
continue;
@@ -2593,7 +2594,7 @@ static struct sock *udp_get_first(struct seq_file *seq, int start)
sk_for_each(sk, &hslot->head) {
if (!net_eq(sock_net(sk), net))
continue;
- if (sk->sk_family == state->family)
+ if (sk->sk_family == afinfo->family)
goto found;
}
spin_unlock_bh(&hslot->lock);
@@ -2605,16 +2606,17 @@ static struct sock *udp_get_first(struct seq_file *seq, int start)
static struct sock *udp_get_next(struct seq_file *seq, struct sock *sk)
{
+ struct udp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct udp_iter_state *state = seq->private;
struct net *net = seq_file_net(seq);
do {
sk = sk_next(sk);
- } while (sk && (!net_eq(sock_net(sk), net) || sk->sk_family != state->family));
+ } while (sk && (!net_eq(sock_net(sk), net) || sk->sk_family != afinfo->family));
if (!sk) {
- if (state->bucket <= state->udp_table->mask)
- spin_unlock_bh(&state->udp_table->hash[state->bucket].lock);
+ if (state->bucket <= afinfo->udp_table->mask)
+ spin_unlock_bh(&afinfo->udp_table->hash[state->bucket].lock);
return udp_get_first(seq, state->bucket + 1);
}
return sk;
@@ -2630,15 +2632,16 @@ static struct sock *udp_get_idx(struct seq_file *seq, loff_t pos)
return pos ? NULL : sk;
}
-static void *udp_seq_start(struct seq_file *seq, loff_t *pos)
+void *udp_seq_start(struct seq_file *seq, loff_t *pos)
{
struct udp_iter_state *state = seq->private;
state->bucket = MAX_UDP_PORTS;
return *pos ? udp_get_idx(seq, *pos-1) : SEQ_START_TOKEN;
}
+EXPORT_SYMBOL(udp_seq_start);
-static void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct sock *sk;
@@ -2650,56 +2653,17 @@ static void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
++*pos;
return sk;
}
+EXPORT_SYMBOL(udp_seq_next);
-static void udp_seq_stop(struct seq_file *seq, void *v)
+void udp_seq_stop(struct seq_file *seq, void *v)
{
+ struct udp_seq_afinfo *afinfo = PDE_DATA(file_inode(seq->file));
struct udp_iter_state *state = seq->private;
- if (state->bucket <= state->udp_table->mask)
- spin_unlock_bh(&state->udp_table->hash[state->bucket].lock);
+ if (state->bucket <= afinfo->udp_table->mask)
+ spin_unlock_bh(&afinfo->udp_table->hash[state->bucket].lock);
}
-
-int udp_seq_open(struct inode *inode, struct file *file)
-{
- struct udp_seq_afinfo *afinfo = PDE_DATA(inode);
- struct udp_iter_state *s;
- int err;
-
- err = seq_open_net(inode, file, &afinfo->seq_ops,
- sizeof(struct udp_iter_state));
- if (err < 0)
- return err;
-
- s = ((struct seq_file *)file->private_data)->private;
- s->family = afinfo->family;
- s->udp_table = afinfo->udp_table;
- return err;
-}
-EXPORT_SYMBOL(udp_seq_open);
-
-/* ------------------------------------------------------------------------ */
-int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo)
-{
- struct proc_dir_entry *p;
- int rc = 0;
-
- afinfo->seq_ops.start = udp_seq_start;
- afinfo->seq_ops.next = udp_seq_next;
- afinfo->seq_ops.stop = udp_seq_stop;
-
- p = proc_create_data(afinfo->name, 0444, net->proc_net,
- afinfo->seq_fops, afinfo);
- if (!p)
- rc = -ENOMEM;
- return rc;
-}
-EXPORT_SYMBOL(udp_proc_register);
-
-void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo)
-{
- remove_proc_entry(afinfo->name, net->proc_net);
-}
-EXPORT_SYMBOL(udp_proc_unregister);
+EXPORT_SYMBOL(udp_seq_stop);
/* ------------------------------------------------------------------------ */
static void udp4_format_sock(struct sock *sp, struct seq_file *f,
@@ -2739,32 +2703,43 @@ int udp4_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct file_operations udp_afinfo_seq_fops = {
+static const struct seq_operations udp_seq_ops = {
+ .start = udp_seq_start,
+ .next = udp_seq_next,
+ .stop = udp_seq_stop,
+ .show = udp4_seq_show,
+};
+
+static int udp_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &udp_seq_ops,
+ sizeof(struct udp_iter_state));
+}
+
+const struct file_operations udp_afinfo_seq_fops = {
.open = udp_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net
};
+EXPORT_SYMBOL(udp_afinfo_seq_fops);
-/* ------------------------------------------------------------------------ */
static struct udp_seq_afinfo udp4_seq_afinfo = {
- .name = "udp",
.family = AF_INET,
.udp_table = &udp_table,
- .seq_fops = &udp_afinfo_seq_fops,
- .seq_ops = {
- .show = udp4_seq_show,
- },
};
static int __net_init udp4_proc_init_net(struct net *net)
{
- return udp_proc_register(net, &udp4_seq_afinfo);
+ if (!proc_create_data("udp", 0444, net->proc_net, &udp_afinfo_seq_fops,
+ &udp4_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
static void __net_exit udp4_proc_exit_net(struct net *net)
{
- udp_proc_unregister(net, &udp4_seq_afinfo);
+ remove_proc_entry("udp", net->proc_net);
}
static struct pernet_operations udp4_net_ops = {
diff --git a/net/ipv4/udplite.c b/net/ipv4/udplite.c
index f96614e9b9a5..4a6e67bfbe0d 100644
--- a/net/ipv4/udplite.c
+++ b/net/ipv4/udplite.c
@@ -14,6 +14,7 @@
#define pr_fmt(fmt) "UDPLite: " fmt
#include <linux/export.h>
+#include <linux/proc_fs.h>
#include "udp_impl.h"
struct udp_table udplite_table __read_mostly;
@@ -73,32 +74,22 @@ static struct inet_protosw udplite4_protosw = {
};
#ifdef CONFIG_PROC_FS
-
-static const struct file_operations udplite_afinfo_seq_fops = {
- .open = udp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-
static struct udp_seq_afinfo udplite4_seq_afinfo = {
- .name = "udplite",
.family = AF_INET,
.udp_table = &udplite_table,
- .seq_fops = &udplite_afinfo_seq_fops,
- .seq_ops = {
- .show = udp4_seq_show,
- },
};
static int __net_init udplite4_proc_init_net(struct net *net)
{
- return udp_proc_register(net, &udplite4_seq_afinfo);
+ if (!proc_create_data("udplite", 0444, net->proc_net,
+ &udp_afinfo_seq_fops, &udplite4_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
static void __net_exit udplite4_proc_exit_net(struct net *net)
{
- udp_proc_unregister(net, &udplite4_seq_afinfo);
+ remove_proc_entry("udplite", net->proc_net);
}
static struct pernet_operations udplite4_net_ops = {
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 4ec76a87aeb8..68f11d6e3912 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1480,31 +1480,43 @@ int udp6_seq_show(struct seq_file *seq, void *v)
return 0;
}
-static const struct file_operations udp6_afinfo_seq_fops = {
- .open = udp_seq_open,
+static const struct seq_operations udp6_seq_ops = {
+ .start = udp_seq_start,
+ .next = udp_seq_next,
+ .stop = udp_seq_stop,
+ .show = udp6_seq_show,
+};
+
+static int udp6_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open_net(inode, file, &udp6_seq_ops,
+ sizeof(struct udp_iter_state));
+}
+
+const struct file_operations udp6_afinfo_seq_fops = {
+ .open = udp6_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_net
};
+EXPORT_SYMBOL(udp6_afinfo_seq_fops);
static struct udp_seq_afinfo udp6_seq_afinfo = {
- .name = "udp6",
.family = AF_INET6,
.udp_table = &udp_table,
- .seq_fops = &udp6_afinfo_seq_fops,
- .seq_ops = {
- .show = udp6_seq_show,
- },
};
int __net_init udp6_proc_init(struct net *net)
{
- return udp_proc_register(net, &udp6_seq_afinfo);
+ if (!proc_create_data("udp6", 0444, net->proc_net,
+ &udp6_afinfo_seq_fops, &udp6_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
void udp6_proc_exit(struct net *net)
{
- udp_proc_unregister(net, &udp6_seq_afinfo);
+ remove_proc_entry("udp6", net->proc_net);
}
#endif /* CONFIG_PROC_FS */
diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c
index 14ae32bb1f3d..a119e57196b5 100644
--- a/net/ipv6/udplite.c
+++ b/net/ipv6/udplite.c
@@ -12,6 +12,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/export.h>
+#include <linux/proc_fs.h>
#include "udp_impl.h"
static int udplitev6_rcv(struct sk_buff *skb)
@@ -92,32 +93,22 @@ void udplitev6_exit(void)
}
#ifdef CONFIG_PROC_FS
-
-static const struct file_operations udplite6_afinfo_seq_fops = {
- .open = udp_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net
-};
-
static struct udp_seq_afinfo udplite6_seq_afinfo = {
- .name = "udplite6",
.family = AF_INET6,
.udp_table = &udplite_table,
- .seq_fops = &udplite6_afinfo_seq_fops,
- .seq_ops = {
- .show = udp6_seq_show,
- },
};
static int __net_init udplite6_proc_init_net(struct net *net)
{
- return udp_proc_register(net, &udplite6_seq_afinfo);
+ if (!proc_create_data("udplite6", 0444, net->proc_net,
+ &udp6_afinfo_seq_fops, &udplite6_seq_afinfo))
+ return -ENOMEM;
+ return 0;
}
static void __net_exit udplite6_proc_exit_net(struct net *net)
{
- udp_proc_unregister(net, &udplite6_seq_afinfo);
+ remove_proc_entry("udplite6", net->proc_net);
}
static struct pernet_operations udplite6_net_ops = {
--
2.17.0
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* [PATCH 01/39] net/can: single_open_net needs to be paired with single_release_net
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
In-Reply-To: <20180419124140.9309-1-hch@lst.de>
Otherwise we will leak a reference to the network namespace.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
net/can/bcm.c | 2 +-
net/can/proc.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/can/bcm.c b/net/can/bcm.c
index ac5e5e34fee3..8073fa14e143 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -249,7 +249,7 @@ static const struct file_operations bcm_proc_fops = {
.open = bcm_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = single_release,
+ .release = single_release_net,
};
#endif /* CONFIG_PROC_FS */
diff --git a/net/can/proc.c b/net/can/proc.c
index fdf704e9bb8c..fde2fd55b826 100644
--- a/net/can/proc.c
+++ b/net/can/proc.c
@@ -279,7 +279,7 @@ static const struct file_operations can_stats_proc_fops = {
.open = can_stats_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = single_release,
+ .release = single_release_net,
};
static int can_reset_stats_proc_show(struct seq_file *m, void *v)
@@ -449,7 +449,7 @@ static const struct file_operations can_rcvlist_sff_proc_fops = {
.open = can_rcvlist_sff_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = single_release,
+ .release = single_release_net,
};
@@ -492,7 +492,7 @@ static const struct file_operations can_rcvlist_eff_proc_fops = {
.open = can_rcvlist_eff_proc_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = single_release,
+ .release = single_release_net,
};
/*
--
2.17.0
------------------------------------------------------------------------------
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engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply related
* simplify procfs code for seq_file instances
From: Christoph Hellwig @ 2018-04-19 12:41 UTC (permalink / raw)
To: Andrew Morton, Alexander Viro
Cc: linux-rtc, Alessandro Zummo, Alexandre Belloni, devel,
linux-kernel, linux-scsi, Corey Minyard, linux-ide,
Greg Kroah-Hartman, jfs-discussion, linux-afs, linux-acpi, netdev,
netfilter-devel, Jiri Slaby, linux-ext4, Alexey Dobriyan,
megaraidlinux.pdl, drbd-dev
We currently have hundreds of proc files that implement plain, read-only
seq_file based interfaces. This series consolidates them using new
procfs helpers that take the seq_operations or simple show callback
directly.
A git tree is available at:
git://git.infradead.org/users/hch/misc.git proc_create
Gitweb:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/proc_create
Diffstat: 268 files changed, 1193 insertions(+), 6194 deletions(-)
------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
^ permalink raw reply
* Re: [PATCH bpf-next v3 6/8] bpf: add documentation for eBPF helpers (42-50)
From: Daniel Borkmann @ 2018-04-19 12:40 UTC (permalink / raw)
To: Quentin Monnet, ast
Cc: netdev, oss-drivers, linux-doc, linux-man, Kaixu Xia,
Martin KaFai Lau, Sargun Dhillon, Thomas Graf, Gianluca Borello,
Chenbo Feng
In-Reply-To: <20180417143438.7018-7-quentin.monnet@netronome.com>
On 04/17/2018 04:34 PM, Quentin Monnet wrote:
> Add documentation for eBPF helper functions to bpf.h user header file.
> This documentation can be parsed with the Python script provided in
> another commit of the patch series, in order to provide a RST document
> that can later be converted into a man page.
>
> The objective is to make the documentation easily understandable and
> accessible to all eBPF developers, including beginners.
>
> This patch contains descriptions for the following helper functions:
>
> Helper from Kaixu:
> - bpf_perf_event_read()
>
> Helpers from Martin:
> - bpf_skb_under_cgroup()
> - bpf_xdp_adjust_head()
>
> Helpers from Sargun:
> - bpf_probe_write_user()
> - bpf_current_task_under_cgroup()
>
> Helper from Thomas:
> - bpf_skb_change_head()
>
> Helper from Gianluca:
> - bpf_probe_read_str()
>
> Helpers from Chenbo:
> - bpf_get_socket_cookie()
> - bpf_get_socket_uid()
>
> v3:
> - bpf_perf_event_read(): Fix time of selection for perf event type in
> description. Remove occurences of "cores" to avoid confusion with
> "CPU".
>
> Cc: Kaixu Xia <xiakaixu@huawei.com>
> Cc: Martin KaFai Lau <kafai@fb.com>
> Cc: Sargun Dhillon <sargun@sargun.me>
> Cc: Thomas Graf <tgraf@suug.ch>
> Cc: Gianluca Borello <g.borello@gmail.com>
> Cc: Chenbo Feng <fengc@google.com>
> Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
> ---
> include/uapi/linux/bpf.h | 158 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 158 insertions(+)
>
> diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> index 3a40f5debac2..dd79a1c82adf 100644
> --- a/include/uapi/linux/bpf.h
> +++ b/include/uapi/linux/bpf.h
> @@ -753,6 +753,25 @@ union bpf_attr {
> * Return
> * 0 on success, or a negative error in case of failure.
> *
> + * u64 bpf_perf_event_read(struct bpf_map *map, u64 flags)
> + * Description
> + * Read the value of a perf event counter. This helper relies on a
> + * *map* of type **BPF_MAP_TYPE_PERF_EVENT_ARRAY**. The nature of
> + * the perf event counter is selected when *map* is updated with
> + * perf event file descriptors. The *map* is an array whose size
> + * is the number of available CPUs, and each cell contains a value
> + * relative to one CPU. The value to retrieve is indicated by
> + * *flags*, that contains the index of the CPU to look up, masked
> + * with **BPF_F_INDEX_MASK**. Alternatively, *flags* can be set to
> + * **BPF_F_CURRENT_CPU** to indicate that the value for the
> + * current CPU should be retrieved.
> + *
> + * Note that before Linux 4.13, only hardware perf event can be
> + * retrieved.
> + * Return
> + * The value of the perf event counter read from the map, or a
> + * negative error code in case of failure.
> + *
> * int bpf_redirect(u32 ifindex, u64 flags)
> * Description
> * Redirect the packet to another net device of index *ifindex*.
> @@ -965,6 +984,17 @@ union bpf_attr {
> * Return
> * 0 on success, or a negative error in case of failure.
> *
> + * int bpf_skb_under_cgroup(struct sk_buff *skb, struct bpf_map *map, u32 index)
> + * Description
> + * Check whether *skb* is a descendant of the cgroup2 held by
> + * *map* of type **BPF_MAP_TYPE_CGROUP_ARRAY**, at *index*.
> + * Return
> + * The return value depends on the result of the test, and can be:
> + *
> + * * 0, if the *skb* failed the cgroup2 descendant test.
> + * * 1, if the *skb* succeeded the cgroup2 descendant test.
> + * * A negative error code, if an error occurred.
> + *
> * u32 bpf_get_hash_recalc(struct sk_buff *skb)
> * Description
> * Retrieve the hash of the packet, *skb*\ **->hash**. If it is
> @@ -985,6 +1015,37 @@ union bpf_attr {
> * Return
> * A pointer to the current task struct.
> *
> + * int bpf_probe_write_user(void *dst, const void *src, u32 len)
> + * Description
> + * Attempt in a safe way to write *len* bytes from the buffer
> + * *src* to *dst* in memory. It only works for threads that are in
> + * user context.
Plus the dst address must be a valid user space address.
> + * This helper should not be used to implement any kind of
> + * security mechanism because of TOC-TOU attacks, but rather to
> + * debug, divert, and manipulate execution of semi-cooperative
> + * processes.
> + *
> + * Keep in mind that this feature is meant for experiments, and it
> + * has a risk of crashing the system and running programs.
Ditto, crashing user space applications.
> + * Therefore, when an eBPF program using this helper is attached,
> + * a warning including PID and process name is printed to kernel
> + * logs.
> + * Return
> + * 0 on success, or a negative error in case of failure.
> + *
> + * int bpf_current_task_under_cgroup(struct bpf_map *map, u32 index)
> + * Description
> + * Check whether the probe is being run is the context of a given
> + * subset of the cgroup2 hierarchy. The cgroup2 to test is held by
> + * *map* of type **BPF_MAP_TYPE_CGROUP_ARRAY**, at *index*.
> + * Return
> + * The return value depends on the result of the test, and can be:
> + *
> + * * 0, if the *skb* task belongs to the cgroup2.
> + * * 1, if the *skb* task does not belong to the cgroup2.
> + * * A negative error code, if an error occurred.
> + *
> * int bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)
> * Description
> * Resize (trim or grow) the packet associated to *skb* to the
> @@ -1069,6 +1130,103 @@ union bpf_attr {
> * Return
> * The id of current NUMA node.
> *
> + * int bpf_skb_change_head(struct sk_buff *skb, u32 len, u64 flags)
> + * Description
> + * Grows headroom of packet associated to *skb* and adjusts the
> + * offset of the MAC header accordingly, adding *len* bytes of
> + * space. It automatically extends and reallocates memory as
> + * required.
> + *
> + * This helper can be used on a layer 3 *skb* to push a MAC header
> + * for redirection into a layer 2 device.
> + *
> + * All values for *flags* are reserved for future usage, and must
> + * be left at zero.
> + *
> + * A call to this helper is susceptible to change data from the
> + * packet. Therefore, at load time, all checks on pointers
> + * previously done by the verifier are invalidated and must be
> + * performed again.
> + * Return
> + * 0 on success, or a negative error in case of failure.
> + *
> + * int bpf_xdp_adjust_head(struct xdp_buff *xdp_md, int delta)
> + * Description
> + * Adjust (move) *xdp_md*\ **->data** by *delta* bytes. Note that
> + * it is possible to use a negative value for *delta*. This helper
> + * can be used to prepare the packet for pushing or popping
> + * headers.
> + *
> + * A call to this helper is susceptible to change data from the
> + * packet. Therefore, at load time, all checks on pointers
> + * previously done by the verifier are invalidated and must be
> + * performed again.
> + * Return
> + * 0 on success, or a negative error in case of failure.
> + *
> + * int bpf_probe_read_str(void *dst, int size, const void *unsafe_ptr)
> + * Description
> + * Copy a NUL terminated string from an unsafe address
> + * *unsafe_ptr* to *dst*. The *size* should include the
> + * terminating NUL byte. In case the string length is smaller than
> + * *size*, the target is not padded with further NUL bytes. If the
> + * string length is larger than *size*, just *size*-1 bytes are
> + * copied and the last byte is set to NUL.
> + *
> + * On success, the length of the copied string is returned. This
> + * makes this helper useful in tracing programs for reading
> + * strings, and more importantly to get its length at runtime. See
> + * the following snippet:
> + *
> + * ::
> + *
> + * SEC("kprobe/sys_open")
> + * void bpf_sys_open(struct pt_regs *ctx)
> + * {
> + * char buf[PATHLEN]; // PATHLEN is defined to 256
> + * int res = bpf_probe_read_str(buf, sizeof(buf),
> + * ctx->di);
> + *
> + * // Consume buf, for example push it to
> + * // userspace via bpf_perf_event_output(); we
> + * // can use res (the string length) as event
> + * // size, after checking its boundaries.
> + * }
> + *
> + * In comparison, using **bpf_probe_read()** helper here instead
> + * to read the string would require to estimate the length at
> + * compile time, and would often result in copying more memory
> + * than necessary.
> + *
> + * Another useful use case is when parsing individual process
> + * arguments or individual environment variables navigating
> + * *current*\ **->mm->arg_start** and *current*\
> + * **->mm->env_start**: using this helper and the return value,
> + * one can quickly iterate at the right offset of the memory area.
> + * Return
> + * On success, the strictly positive length of the string,
> + * including the trailing NUL character. On error, a negative
> + * value.
> + *
> + * u64 bpf_get_socket_cookie(struct sk_buff *skb)
> + * Description
> + * Retrieve the socket cookie generated by the kernel from a
> + * **struct sk_buff** with a known socket. If none has been set
> + * yet, generate a new cookie. This helper can be useful for
> + * monitoring per socket networking traffic statistics as it
> + * provides a unique socket identifier per namespace.
> + * Return
> + * A 8-byte long non-decreasing number on success, or 0 if the
> + * socket field is missing inside *skb*.
> + *
> + * u32 bpf_get_socket_uid(struct sk_buff *skb)
> + * Return
> + * The owner UID of the socket associated to *skb*. If the socket
> + * is **NULL**, or if it is not a full socket (i.e. if it is a
> + * time-wait or a request socket instead), **overflowuid** value
> + * is returned (note that **overflowuid** might also be the actual
> + * UID value for the socket).
> + *
> * u32 bpf_set_hash(struct sk_buff *skb, u32 hash)
> * Description
> * Set the full hash for *skb* (set the field *skb*\ **->hash**)
>
^ permalink raw reply
* [PATCH net-next 4/4] geneve: configure MTU based on a lower device
From: Alexey Kodanev @ 2018-04-19 12:42 UTC (permalink / raw)
To: netdev; +Cc: David Miller, Alexey Kodanev
In-Reply-To: <1524141752-25789-1-git-send-email-alexey.kodanev@oracle.com>
Currently, on a new link creation or when 'remote' address parameter
is updated, an MTU is not changed and always equals 1500. When a lower
device has a larger MTU, it might not be efficient, e.g. for UDP, and
requires the manual MTU adjustments to match the MTU of the lower
device.
This patch tries to automate this process, finds a lower device using
the 'remote' address parameter, then uses its MTU to tune GENEVE's MTU:
* on a new link creation
* when 'remote' parameter is changed
Also with this patch, the MTU from a user, on a new link creation, is
passed to geneve_change_mtu() where it is verified, and MTU adjustments
with a lower device is skipped in that case. Prior that change, it was
possible to set the invalid MTU values on a new link creation.
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
---
drivers/net/geneve.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 53 insertions(+), 3 deletions(-)
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index ae649f6..750eaa5 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -1387,6 +1387,48 @@ static int geneve_nl2info(struct nlattr *tb[], struct nlattr *data[],
return -EOPNOTSUPP;
}
+static void geneve_link_config(struct net_device *dev,
+ struct ip_tunnel_info *info, struct nlattr *tb[])
+{
+ struct geneve_dev *geneve = netdev_priv(dev);
+ int ldev_mtu = 0;
+
+ if (tb[IFLA_MTU]) {
+ geneve_change_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
+ return;
+ }
+
+ switch (ip_tunnel_info_af(info)) {
+ case AF_INET: {
+ struct flowi4 fl4 = { .daddr = info->key.u.ipv4.dst };
+ struct rtable *rt = ip_route_output_key(geneve->net, &fl4);
+
+ if (!IS_ERR(rt) && rt->dst.dev) {
+ ldev_mtu = rt->dst.dev->mtu - GENEVE_IPV4_HLEN;
+ ip_rt_put(rt);
+ }
+ break;
+ }
+#if IS_ENABLED(CONFIG_IPV6)
+ case AF_INET6: {
+ struct rt6_info *rt = rt6_lookup(geneve->net,
+ &info->key.u.ipv6.dst, NULL, 0,
+ NULL, 0);
+
+ if (rt && rt->dst.dev)
+ ldev_mtu = rt->dst.dev->mtu - GENEVE_IPV6_HLEN;
+ ip6_rt_put(rt);
+ break;
+ }
+#endif
+ }
+
+ if (ldev_mtu <= 0)
+ return;
+
+ geneve_change_mtu(dev, ldev_mtu - info->options_len);
+}
+
static int geneve_newlink(struct net *net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
struct netlink_ext_ack *extack)
@@ -1402,8 +1444,14 @@ static int geneve_newlink(struct net *net, struct net_device *dev,
if (err)
return err;
- return geneve_configure(net, dev, extack, &info, metadata,
- use_udp6_rx_checksums);
+ err = geneve_configure(net, dev, extack, &info, metadata,
+ use_udp6_rx_checksums);
+ if (err)
+ return err;
+
+ geneve_link_config(dev, &info, tb);
+
+ return 0;
}
/* Quiesces the geneve device data path for both TX and RX.
@@ -1477,8 +1525,10 @@ static int geneve_changelink(struct net_device *dev, struct nlattr *tb[],
if (err)
return err;
- if (!geneve_dst_addr_equal(&geneve->info, &info))
+ if (!geneve_dst_addr_equal(&geneve->info, &info)) {
dst_cache_reset(&info.dst_cache);
+ geneve_link_config(dev, &info, tb);
+ }
geneve_quiesce(geneve, &gs4, &gs6);
geneve->info = info;
--
1.8.3.1
^ permalink raw reply related
* [PATCH net-next 3/4] geneve: check MTU for a minimum in geneve_change_mtu()
From: Alexey Kodanev @ 2018-04-19 12:42 UTC (permalink / raw)
To: netdev; +Cc: David Miller, Alexey Kodanev
In-Reply-To: <1524141752-25789-1-git-send-email-alexey.kodanev@oracle.com>
geneve_change_mtu() will be used not only as ndo_change_mtu() callback,
but also to verify a user specified MTU on a new link creation in the
next patch.
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
---
drivers/net/geneve.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index b650f84..ae649f6 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -942,11 +942,10 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev)
static int geneve_change_mtu(struct net_device *dev, int new_mtu)
{
- /* Only possible if called internally, ndo_change_mtu path's new_mtu
- * is guaranteed to be between dev->min_mtu and dev->max_mtu.
- */
if (new_mtu > dev->max_mtu)
new_mtu = dev->max_mtu;
+ else if (new_mtu < dev->min_mtu)
+ new_mtu = dev->min_mtu;
dev->mtu = new_mtu;
return 0;
--
1.8.3.1
^ permalink raw reply related
* [PATCH net-next 2/4] geneve: cleanup hard coded value for Ethernet header length
From: Alexey Kodanev @ 2018-04-19 12:42 UTC (permalink / raw)
To: netdev; +Cc: David Miller, Alexey Kodanev
In-Reply-To: <1524141752-25789-1-git-send-email-alexey.kodanev@oracle.com>
Use ETH_HLEN instead and introduce two new macros: GENEVE_IPV4_HLEN
and GENEVE_IPV6_HLEN that include Ethernet header length, corresponded
IP header length and GENEVE_BASE_HLEN.
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
---
drivers/net/geneve.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 45acdc9..b650f84 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -36,6 +36,8 @@
#define GENEVE_VER 0
#define GENEVE_BASE_HLEN (sizeof(struct udphdr) + sizeof(struct genevehdr))
+#define GENEVE_IPV4_HLEN (ETH_HLEN + sizeof(struct iphdr) + GENEVE_BASE_HLEN)
+#define GENEVE_IPV6_HLEN (ETH_HLEN + sizeof(struct ipv6hdr) + GENEVE_BASE_HLEN)
/* per-network namespace private data for this module */
struct geneve_net {
@@ -826,8 +828,8 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev,
return PTR_ERR(rt);
if (skb_dst(skb)) {
- int mtu = dst_mtu(&rt->dst) - sizeof(struct iphdr) -
- GENEVE_BASE_HLEN - info->options_len - 14;
+ int mtu = dst_mtu(&rt->dst) - GENEVE_IPV4_HLEN -
+ info->options_len;
skb_dst_update_pmtu(skb, mtu);
}
@@ -872,8 +874,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev,
return PTR_ERR(dst);
if (skb_dst(skb)) {
- int mtu = dst_mtu(dst) - sizeof(struct ipv6hdr) -
- GENEVE_BASE_HLEN - info->options_len - 14;
+ int mtu = dst_mtu(dst) - GENEVE_IPV6_HLEN - info->options_len;
skb_dst_update_pmtu(skb, mtu);
}
--
1.8.3.1
^ permalink raw reply related
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