From: Christoph Hellwig <hch@lst.de>
To: Niv Sardi <xaiki@sgi.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH] streamline init/exit path
Date: Wed, 21 May 2008 09:24:25 +0200 [thread overview]
Message-ID: <20080521072425.GA29889@lst.de> (raw)
In-Reply-To: <nccej7w2l9c.fsf@sgi.com>
Updated patch below. There's now split out function to create/destroy
the kmem zones and alloc/free the trace buffers. I've also changed the
ktrace allocations to KM_MAYFAIL and handled errors resulting from that.
And yes, we really should replace the XFS_*_TRACE ifdefs with a single
XFS_TRACE..
Signed-off-by: Christoph Hellwig <hch@lst.de>
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_stats.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_stats.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_stats.c 2008-05-20 07:55:35.000000000 +0200
@@ -98,12 +98,21 @@ xfs_read_xfsstats(
return len;
}
-void
+int
xfs_init_procfs(void)
{
if (!proc_mkdir("fs/xfs", NULL))
- return;
- create_proc_read_entry("fs/xfs/stat", 0, NULL, xfs_read_xfsstats, NULL);
+ goto out;
+
+ if (!create_proc_read_entry("fs/xfs/stat", 0, NULL,
+ xfs_read_xfsstats, NULL))
+ goto out_remove_entry;
+ return 0;
+
+ out_remove_entry:
+ remove_proc_entry("fs/xfs", NULL);
+ out:
+ return -ENOMEM;
}
void
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_stats.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_stats.h 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_stats.h 2008-05-20 07:55:35.000000000 +0200
@@ -134,7 +134,7 @@ DECLARE_PER_CPU(struct xfsstats, xfsstat
#define XFS_STATS_DEC(v) (per_cpu(xfsstats, current_cpu()).v--)
#define XFS_STATS_ADD(v, inc) (per_cpu(xfsstats, current_cpu()).v += (inc))
-extern void xfs_init_procfs(void);
+extern int xfs_init_procfs(void);
extern void xfs_cleanup_procfs(void);
@@ -144,8 +144,13 @@ extern void xfs_cleanup_procfs(void);
# define XFS_STATS_DEC(count)
# define XFS_STATS_ADD(count, inc)
-static inline void xfs_init_procfs(void) { };
-static inline void xfs_cleanup_procfs(void) { };
+static inline int xfs_init_procfs(void)
+{
+ return 0
+};
+static inline void xfs_cleanup_procfs(void)
+{
+};
#endif /* !CONFIG_PROC_FS */
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_super.c 2008-05-20 07:54:45.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c 2008-05-21 08:20:21.000000000 +0200
@@ -53,6 +53,11 @@
#include "xfs_log_priv.h"
#include "xfs_trans_priv.h"
#include "xfs_filestream.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2_trace.h"
+#include "xfs_extfree_item.h"
+#include "xfs_mru_cache.h"
+#include "xfs_inode_item.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -876,42 +881,6 @@ xfs_fs_inode_init_once(
inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
}
-STATIC int __init
-xfs_init_zones(void)
-{
- xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
- KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
- KM_ZONE_SPREAD,
- xfs_fs_inode_init_once);
- if (!xfs_vnode_zone)
- goto out;
-
- xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
- if (!xfs_ioend_zone)
- goto out_destroy_vnode_zone;
-
- xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE,
- xfs_ioend_zone);
- if (!xfs_ioend_pool)
- goto out_free_ioend_zone;
- return 0;
-
- out_free_ioend_zone:
- kmem_zone_destroy(xfs_ioend_zone);
- out_destroy_vnode_zone:
- kmem_zone_destroy(xfs_vnode_zone);
- out:
- return -ENOMEM;
-}
-
-STATIC void
-xfs_destroy_zones(void)
-{
- mempool_destroy(xfs_ioend_pool);
- kmem_zone_destroy(xfs_vnode_zone);
- kmem_zone_destroy(xfs_ioend_zone);
-}
-
/*
* Attempt to flush the inode, this will actually fail
* if the inode is pinned, but we dirty the inode again
@@ -1838,9 +1807,235 @@ struct file_system_type xfs_fs_type = {
};
EXPORT_SYMBOL(xfs_fs_type);
+STATIC int __init
+xfs_alloc_trace_bufs(void)
+{
+#ifdef XFS_ALLOC_TRACE
+ xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_MAYFAIL);
+ if (!xfs_alloc_trace_buf)
+ goto out;
+#endif
+#ifdef XFS_BMAP_TRACE
+ xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_MAYFAIL);
+ if (!xfs_bmap_trace_buf)
+ goto out_free_alloc_trace;
+#endif
+#ifdef XFS_BMBT_TRACE
+ xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_MAYFAIL);
+ if (!xfs_bmbt_trace_buf)
+ goto out_free_bmap_trace;
+#endif
+#ifdef XFS_ATTR_TRACE
+ xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_MAYFAIL);
+ if (!xfs_attr_trace_buf)
+ goto out_free_bmbt_trace;
+#endif
+#ifdef XFS_DIR2_TRACE
+ xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_MAYFAIL);
+ if (!xfs_dir2_trace_buf)
+ goto out_free_attr_trace;
+#endif
+
+ return 0;
+
+#ifdef XFS_DIR2_TRACE
+ out_free_attr_trace:
+#endif
+#ifdef XFS_ATTR_TRACE
+ ktrace_free(xfs_attr_trace_buf);
+ out_free_bmbt_trace:
+#endif
+#ifdef XFS_BMBT_TRACE
+ ktrace_free(xfs_bmbt_trace_buf);
+ out_free_bmap_trace:
+#endif
+#ifdef XFS_BMAP_TRACE
+ ktrace_free(xfs_bmap_trace_buf);
+ out_free_alloc_trace:
+#endif
+#ifdef XFS_ALLOC_TRACE
+ ktrace_free(xfs_alloc_trace_buf);
+ out:
+#endif
+ return -ENOMEM;
+}
+
+STATIC void
+xfs_free_trace_bufs(void)
+{
+#ifdef XFS_DIR2_TRACE
+ ktrace_free(xfs_dir2_trace_buf);
+#endif
+#ifdef XFS_ATTR_TRACE
+ ktrace_free(xfs_attr_trace_buf);
+#endif
+#ifdef XFS_BMBT_TRACE
+ ktrace_free(xfs_bmbt_trace_buf);
+#endif
+#ifdef XFS_BMAP_TRACE
+ ktrace_free(xfs_bmap_trace_buf);
+#endif
+#ifdef XFS_ALLOC_TRACE
+ ktrace_free(xfs_alloc_trace_buf);
+#endif
+}
STATIC int __init
-init_xfs_fs( void )
+xfs_init_zones(void)
+{
+ xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
+ KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
+ KM_ZONE_SPREAD,
+ xfs_fs_inode_init_once);
+ if (!xfs_vnode_zone)
+ goto out;
+
+ xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
+ if (!xfs_ioend_zone)
+ goto out_destroy_vnode_zone;
+
+ xfs_ioend_pool = mempool_create_slab_pool(4 * MAX_BUF_PER_PAGE,
+ xfs_ioend_zone);
+ if (!xfs_ioend_pool)
+ goto out_destroy_ioend_zone;
+
+ xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t),
+ "xfs_log_ticket");
+ if (!xfs_log_ticket_zone)
+ goto out_destroy_ioend_pool;
+
+ xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t),
+ "xfs_bmap_free_item");
+ if (!xfs_bmap_free_item_zone)
+ goto out_destroy_log_ticket_zone;
+ xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t),
+ "xfs_btree_cur");
+ if (!xfs_btree_cur_zone)
+ goto out_destroy_bmap_free_item_zone;
+
+ xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t),
+ "xfs_da_state");
+ if (!xfs_da_state_zone)
+ goto out_destroy_btree_cur_zone;
+
+ xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
+ if (!xfs_dabuf_zone)
+ goto out_destroy_da_state_zone;
+
+ xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
+ if (!xfs_ifork_zone)
+ goto out_destroy_dabuf_zone;
+
+ xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans");
+ if (!xfs_trans_zone)
+ goto out_destroy_ifork_zone;
+
+ /*
+ * The size of the zone allocated buf log item is the maximum
+ * size possible under XFS. This wastes a little bit of memory,
+ * but it is much faster.
+ */
+ xfs_buf_item_zone = kmem_zone_init((sizeof(xfs_buf_log_item_t) +
+ (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) /
+ NBWORD) * sizeof(int))), "xfs_buf_item");
+ if (!xfs_buf_item_zone)
+ goto out_destroy_trans_zone;
+
+ xfs_efd_zone = kmem_zone_init((sizeof(xfs_efd_log_item_t) +
+ ((XFS_EFD_MAX_FAST_EXTENTS - 1) *
+ sizeof(xfs_extent_t))), "xfs_efd_item");
+ if (!xfs_efd_zone)
+ goto out_destroy_buf_item_zone;
+
+ xfs_efi_zone = kmem_zone_init((sizeof(xfs_efi_log_item_t) +
+ ((XFS_EFI_MAX_FAST_EXTENTS - 1) *
+ sizeof(xfs_extent_t))), "xfs_efi_item");
+ if (!xfs_efi_zone)
+ goto out_destroy_efd_zone;
+
+ xfs_inode_zone =
+ kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode",
+ KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
+ KM_ZONE_SPREAD, NULL);
+ if (!xfs_inode_zone)
+ goto out_destroy_efi_zone;
+
+ xfs_ili_zone =
+ kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
+ KM_ZONE_SPREAD, NULL);
+ if (!xfs_ili_zone)
+ goto out_destroy_inode_zone;
+
+#ifdef CONFIG_XFS_POSIX_ACL
+ xfs_acl_zone = kmem_zone_init(sizeof(xfs_acl_t), "xfs_acl");
+ if (!xfs_acl_zone)
+ goto out_destroy_ili_zone;
+#endif
+
+ return 0;
+
+#ifdef CONFIG_XFS_POSIX_ACL
+ out_destroy_ili_zone:
+#endif
+ kmem_zone_destroy(xfs_ili_zone);
+ out_destroy_inode_zone:
+ kmem_zone_destroy(xfs_inode_zone);
+ out_destroy_efi_zone:
+ kmem_zone_destroy(xfs_efi_zone);
+ out_destroy_efd_zone:
+ kmem_zone_destroy(xfs_efd_zone);
+ out_destroy_buf_item_zone:
+ kmem_zone_destroy(xfs_buf_item_zone);
+ out_destroy_trans_zone:
+ kmem_zone_destroy(xfs_trans_zone);
+ out_destroy_ifork_zone:
+ kmem_zone_destroy(xfs_ifork_zone);
+ out_destroy_dabuf_zone:
+ kmem_zone_destroy(xfs_dabuf_zone);
+ out_destroy_da_state_zone:
+ kmem_zone_destroy(xfs_da_state_zone);
+ out_destroy_btree_cur_zone:
+ kmem_zone_destroy(xfs_btree_cur_zone);
+ out_destroy_bmap_free_item_zone:
+ kmem_zone_destroy(xfs_bmap_free_item_zone);
+ out_destroy_log_ticket_zone:
+ kmem_zone_destroy(xfs_log_ticket_zone);
+ out_destroy_ioend_pool:
+ mempool_destroy(xfs_ioend_pool);
+ out_destroy_ioend_zone:
+ kmem_zone_destroy(xfs_ioend_zone);
+ out_destroy_vnode_zone:
+ kmem_zone_destroy(xfs_vnode_zone);
+ out:
+ return -ENOMEM;
+}
+
+STATIC void
+xfs_destroy_zones(void)
+{
+#ifdef CONFIG_XFS_POSIX_ACL
+ kmem_zone_destroy(xfs_acl_zone);
+#endif
+ kmem_zone_destroy(xfs_ili_zone);
+ kmem_zone_destroy(xfs_inode_zone);
+ kmem_zone_destroy(xfs_efi_zone);
+ kmem_zone_destroy(xfs_efd_zone);
+ kmem_zone_destroy(xfs_buf_item_zone);
+ kmem_zone_destroy(xfs_trans_zone);
+ kmem_zone_destroy(xfs_ifork_zone);
+ kmem_zone_destroy(xfs_dabuf_zone);
+ kmem_zone_destroy(xfs_da_state_zone);
+ kmem_zone_destroy(xfs_btree_cur_zone);
+ kmem_zone_destroy(xfs_bmap_free_item_zone);
+ kmem_zone_destroy(xfs_log_ticket_zone);
+ mempool_destroy(xfs_ioend_pool);
+ kmem_zone_destroy(xfs_ioend_zone);
+ kmem_zone_destroy(xfs_vnode_zone);
+
+}
+
+STATIC int __init
+init_xfs_fs(void)
{
int error;
static char message[] __initdata = KERN_INFO \
@@ -1849,40 +2044,70 @@ init_xfs_fs( void )
printk(message);
ktrace_init(64);
+ vn_init();
+ xfs_dir_startup();
error = xfs_init_zones();
- if (error < 0)
- goto undo_zones;
+ if (error)
+ goto out;
+
+ error = xfs_alloc_trace_bufs();
+ if (error)
+ goto out_destroy_zones;
+
+ error = xfs_mru_cache_init();
+ if (error)
+ goto out_free_trace_buffers;
+
+ error = xfs_filestream_init();
+ if (error)
+ goto out_mru_cache_uninit;
error = xfs_buf_init();
- if (error < 0)
- goto undo_buffers;
+ if (error)
+ goto out_filestream_uninit;
- vn_init();
- xfs_init();
- uuid_init();
+ error = xfs_init_procfs();
+ if (error)
+ goto out_buf_terminate;
+
+ error = xfs_sysctl_register();
+ if (error)
+ goto out_cleanup_procfs;
error = register_filesystem(&xfs_fs_type);
if (error)
- goto undo_register;
+ goto out_sysctl_unregister;
return 0;
-undo_register:
+ out_sysctl_unregister:
+ xfs_sysctl_unregister();
+ out_cleanup_procfs:
+ xfs_cleanup_procfs();
+ out_buf_terminate:
xfs_buf_terminate();
-
-undo_buffers:
+ out_filestream_uninit:
+ xfs_filestream_uninit();
+ out_mru_cache_uninit:
+ xfs_mru_cache_uninit();
+ out_free_trace_buffers:
+ xfs_free_trace_bufs();
+ out_destroy_zones:
xfs_destroy_zones();
-
-undo_zones:
+ out:
return error;
}
STATIC void __exit
-exit_xfs_fs( void )
+exit_xfs_fs(void)
{
unregister_filesystem(&xfs_fs_type);
- xfs_cleanup();
+ xfs_sysctl_unregister();
+ xfs_cleanup_procfs();
xfs_buf_terminate();
+ xfs_filestream_uninit();
+ xfs_mru_cache_uninit();
+ xfs_free_trace_bufs();
xfs_destroy_zones();
ktrace_uninit();
}
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_sysctl.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_sysctl.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_sysctl.c 2008-05-20 07:55:35.000000000 +0200
@@ -259,15 +259,17 @@ static ctl_table xfs_root_table[] = {
{}
};
-void
+int
xfs_sysctl_register(void)
{
xfs_table_header = register_sysctl_table(xfs_root_table);
+ if (!xfs_table_header)
+ return -ENOMEM;
+ return 0;
}
void
xfs_sysctl_unregister(void)
{
- if (xfs_table_header)
- unregister_sysctl_table(xfs_table_header);
+ unregister_sysctl_table(xfs_table_header);
}
Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_sysctl.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_sysctl.h 2008-05-20 07:42:41.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_sysctl.h 2008-05-20 07:55:35.000000000 +0200
@@ -93,10 +93,10 @@ enum {
extern xfs_param_t xfs_params;
#ifdef CONFIG_SYSCTL
-extern void xfs_sysctl_register(void);
+extern int xfs_sysctl_register(void);
extern void xfs_sysctl_unregister(void);
#else
-# define xfs_sysctl_register() do { } while (0)
+# define xfs_sysctl_register() (0)
# define xfs_sysctl_unregister() do { } while (0)
#endif /* CONFIG_SYSCTL */
Index: linux-2.6-xfs/fs/xfs/support/uuid.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/support/uuid.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/support/uuid.c 2008-05-20 07:55:35.000000000 +0200
@@ -17,7 +17,7 @@
*/
#include <xfs.h>
-static mutex_t uuid_monitor;
+static DEFINE_MUTEX(uuid_monitor);
static int uuid_table_size;
static uuid_t *uuid_table;
@@ -132,9 +132,3 @@ uuid_table_remove(uuid_t *uuid)
ASSERT(i < uuid_table_size);
mutex_unlock(&uuid_monitor);
}
-
-void __init
-uuid_init(void)
-{
- mutex_init(&uuid_monitor);
-}
Index: linux-2.6-xfs/fs/xfs/support/uuid.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/support/uuid.h 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/support/uuid.h 2008-05-20 07:55:35.000000000 +0200
@@ -22,7 +22,6 @@ typedef struct {
unsigned char __u_bits[16];
} uuid_t;
-extern void uuid_init(void);
extern void uuid_create_nil(uuid_t *uuid);
extern int uuid_is_nil(uuid_t *uuid);
extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2);
Index: linux-2.6-xfs/fs/xfs/xfs_da_btree.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_da_btree.c 2008-05-20 07:42:41.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_da_btree.c 2008-05-20 07:55:35.000000000 +0200
@@ -2218,7 +2218,7 @@ xfs_da_state_free(xfs_da_state_t *state)
#ifdef XFS_DABUF_DEBUG
xfs_dabuf_t *xfs_dabuf_global_list;
-spinlock_t xfs_dabuf_global_lock;
+static DEFINE_SPINLOCK(xfs_dabuf_global_lock);
#endif
/*
Index: linux-2.6-xfs/fs/xfs/xfs_error.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_error.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_error.c 2008-05-20 07:55:35.000000000 +0200
@@ -66,14 +66,6 @@ int xfs_etest[XFS_NUM_INJECT_ERROR];
int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
-void
-xfs_error_test_init(void)
-{
- memset(xfs_etest, 0, sizeof(xfs_etest));
- memset(xfs_etest_fsid, 0, sizeof(xfs_etest_fsid));
- memset(xfs_etest_fsname, 0, sizeof(xfs_etest_fsname));
-}
-
int
xfs_error_test(int error_tag, int *fsidp, char *expression,
int line, char *file, unsigned long randfactor)
Index: linux-2.6-xfs/fs/xfs/xfs_error.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_error.h 2008-05-20 07:42:41.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_error.h 2008-05-20 07:55:35.000000000 +0200
@@ -127,7 +127,6 @@ extern void xfs_corruption_error(char *t
#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
-extern void xfs_error_test_init(void);
#define XFS_NUM_INJECT_ERROR 10
Index: linux-2.6-xfs/fs/xfs/xfs_filestream.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_filestream.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_filestream.c 2008-05-20 07:55:35.000000000 +0200
@@ -397,10 +397,12 @@ int
xfs_filestream_init(void)
{
item_zone = kmem_zone_init(sizeof(fstrm_item_t), "fstrm_item");
+ if (!item_zone)
+ return -ENOMEM;
#ifdef XFS_FILESTREAMS_TRACE
xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_SLEEP);
#endif
- return item_zone ? 0 : -ENOMEM;
+ return 0;
}
/*
Index: linux-2.6-xfs/fs/xfs/xfs_mount.h
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_mount.h 2008-05-20 07:47:55.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_mount.h 2008-05-20 07:55:35.000000000 +0200
@@ -545,9 +545,6 @@ extern void xfs_qmops_put(struct xfs_mou
extern struct xfs_dmops xfs_dmcore_xfs;
-extern int xfs_init(void);
-extern void xfs_cleanup(void);
-
#endif /* __KERNEL__ */
#endif /* __XFS_MOUNT_H__ */
Index: linux-2.6-xfs/fs/xfs/xfs_mru_cache.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_mru_cache.c 2008-05-20 07:42:40.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_mru_cache.c 2008-05-20 07:55:35.000000000 +0200
@@ -307,15 +307,18 @@ xfs_mru_cache_init(void)
xfs_mru_elem_zone = kmem_zone_init(sizeof(xfs_mru_cache_elem_t),
"xfs_mru_cache_elem");
if (!xfs_mru_elem_zone)
- return ENOMEM;
+ goto out;
xfs_mru_reap_wq = create_singlethread_workqueue("xfs_mru_cache");
- if (!xfs_mru_reap_wq) {
- kmem_zone_destroy(xfs_mru_elem_zone);
- return ENOMEM;
- }
+ if (!xfs_mru_reap_wq)
+ goto out_destroy_mru_elem_zone;
return 0;
+
+ out_destroy_mru_elem_zone:
+ kmem_zone_destroy(xfs_mru_elem_zone);
+ out:
+ return -ENOMEM;
}
void
Index: linux-2.6-xfs/fs/xfs/xfs_vfsops.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/xfs_vfsops.c 2008-05-20 07:47:55.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/xfs_vfsops.c 2008-05-20 07:55:35.000000000 +0200
@@ -58,137 +58,6 @@
#include "xfs_utils.h"
-int __init
-xfs_init(void)
-{
-#ifdef XFS_DABUF_DEBUG
- extern spinlock_t xfs_dabuf_global_lock;
- spin_lock_init(&xfs_dabuf_global_lock);
-#endif
-
- /*
- * Initialize all of the zone allocators we use.
- */
- xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t),
- "xfs_log_ticket");
- xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t),
- "xfs_bmap_free_item");
- xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t),
- "xfs_btree_cur");
- xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t),
- "xfs_da_state");
- xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf");
- xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork");
- xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans");
- xfs_acl_zone_init(xfs_acl_zone, "xfs_acl");
- xfs_mru_cache_init();
- xfs_filestream_init();
-
- /*
- * The size of the zone allocated buf log item is the maximum
- * size possible under XFS. This wastes a little bit of memory,
- * but it is much faster.
- */
- xfs_buf_item_zone =
- kmem_zone_init((sizeof(xfs_buf_log_item_t) +
- (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) /
- NBWORD) * sizeof(int))),
- "xfs_buf_item");
- xfs_efd_zone =
- kmem_zone_init((sizeof(xfs_efd_log_item_t) +
- ((XFS_EFD_MAX_FAST_EXTENTS - 1) *
- sizeof(xfs_extent_t))),
- "xfs_efd_item");
- xfs_efi_zone =
- kmem_zone_init((sizeof(xfs_efi_log_item_t) +
- ((XFS_EFI_MAX_FAST_EXTENTS - 1) *
- sizeof(xfs_extent_t))),
- "xfs_efi_item");
-
- /*
- * These zones warrant special memory allocator hints
- */
- xfs_inode_zone =
- kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode",
- KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
- KM_ZONE_SPREAD, NULL);
- xfs_ili_zone =
- kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
- KM_ZONE_SPREAD, NULL);
-
- /*
- * Allocate global trace buffers.
- */
-#ifdef XFS_ALLOC_TRACE
- xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMAP_TRACE
- xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_BMBT_TRACE
- xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_ATTR_TRACE
- xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_SLEEP);
-#endif
-#ifdef XFS_DIR2_TRACE
- xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_SLEEP);
-#endif
-
- xfs_dir_startup();
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
- xfs_error_test_init();
-#endif /* DEBUG || INDUCE_IO_ERROR */
-
- xfs_init_procfs();
- xfs_sysctl_register();
- return 0;
-}
-
-void __exit
-xfs_cleanup(void)
-{
- extern kmem_zone_t *xfs_inode_zone;
- extern kmem_zone_t *xfs_efd_zone;
- extern kmem_zone_t *xfs_efi_zone;
-
- xfs_cleanup_procfs();
- xfs_sysctl_unregister();
- xfs_filestream_uninit();
- xfs_mru_cache_uninit();
- xfs_acl_zone_destroy(xfs_acl_zone);
-
-#ifdef XFS_DIR2_TRACE
- ktrace_free(xfs_dir2_trace_buf);
-#endif
-#ifdef XFS_ATTR_TRACE
- ktrace_free(xfs_attr_trace_buf);
-#endif
-#ifdef XFS_BMBT_TRACE
- ktrace_free(xfs_bmbt_trace_buf);
-#endif
-#ifdef XFS_BMAP_TRACE
- ktrace_free(xfs_bmap_trace_buf);
-#endif
-#ifdef XFS_ALLOC_TRACE
- ktrace_free(xfs_alloc_trace_buf);
-#endif
-
- kmem_zone_destroy(xfs_bmap_free_item_zone);
- kmem_zone_destroy(xfs_btree_cur_zone);
- kmem_zone_destroy(xfs_inode_zone);
- kmem_zone_destroy(xfs_trans_zone);
- kmem_zone_destroy(xfs_da_state_zone);
- kmem_zone_destroy(xfs_dabuf_zone);
- kmem_zone_destroy(xfs_buf_item_zone);
- kmem_zone_destroy(xfs_efd_zone);
- kmem_zone_destroy(xfs_efi_zone);
- kmem_zone_destroy(xfs_ifork_zone);
- kmem_zone_destroy(xfs_ili_zone);
- kmem_zone_destroy(xfs_log_ticket_zone);
-}
-
STATIC void
xfs_quiesce_fs(
xfs_mount_t *mp)
next prev parent reply other threads:[~2008-05-21 7:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-18 13:05 [PATCH] streamline init/exit path Christoph Hellwig
2008-05-21 0:41 ` Niv Sardi
2008-05-21 6:01 ` Christoph Hellwig
2008-05-21 7:01 ` Niv Sardi
2008-05-21 7:24 ` Christoph Hellwig [this message]
2008-05-21 8:11 ` TAKE " Niv Sardi
2008-05-22 15:56 ` Christoph Hellwig
2008-05-23 0:26 ` Barry Naujok
2008-05-23 1:57 ` Niv Sardi
2008-05-25 19:10 ` Christoph Hellwig
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