[PATCH v2 29/41] 9p: adapt to breakup of struct file_lock

Jeff Layton
2024-01-25T10:45:06Z

Most of the existing APIs have remained the same, but subsystems that
access file_lock fields directly need to reach into struct
file_lock_core now.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/9p/vfs_file.c | 39 +++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index a1dabcf73380..4e4f555e0c8b 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -9,7 +9,6 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/fs.h>
-#define _NEED_FILE_LOCK_FIELD_MACROS
#include <linux/filelock.h>
#include <linux/sched.h>
#include <linux/file.h>
@@ -108,7 +107,7 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)

p9_debug(P9_DEBUG_VFS, "filp: %p lock: %p\n", filp, fl);

- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_core.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
@@ -127,7 +126,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
fid = filp->private_data;
BUG_ON(fid == NULL);

- BUG_ON((fl->fl_flags & FL_POSIX) != FL_POSIX);
+ BUG_ON((fl->fl_core.flc_flags & FL_POSIX) != FL_POSIX);

res = locks_lock_file_wait(filp, fl);
if (res < 0)
@@ -136,7 +135,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
/* convert posix lock to p9 tlock args */
memset(&flock, 0, sizeof(flock));
/* map the lock type */
- switch (fl->fl_type) {
+ switch (fl->fl_core.flc_type) {
case F_RDLCK:
flock.type = P9_LOCK_TYPE_RDLCK;
break;
@@ -152,7 +151,7 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
flock.length = 0;
else
flock.length = fl->fl_end - fl->fl_start + 1;
- flock.proc_id = fl->fl_pid;
+ flock.proc_id = fl->fl_core.flc_pid;
flock.client_id = fid->clnt->name;
if (IS_SETLKW(cmd))
flock.flags = P9_LOCK_FLAGS_BLOCK;
@@ -207,13 +206,13 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
* incase server returned error for lock request, revert
* it locally
*/
- if (res < 0 && fl->fl_type != F_UNLCK) {
- unsigned char type = fl->fl_type;
+ if (res < 0 && fl->fl_core.flc_type != F_UNLCK) {
+ unsigned char type = fl->fl_core.flc_type;

- fl->fl_type = F_UNLCK;
+ fl->fl_core.flc_type = F_UNLCK;
/* Even if this fails we want to return the remote error */
locks_lock_file_wait(filp, fl);
- fl->fl_type = type;
+ fl->fl_core.flc_type = type;
}
if (flock.client_id != fid->clnt->name)
kfree(flock.client_id);
@@ -235,7 +234,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
* if we have a conflicting lock locally, no need to validate
* with server
*/
- if (fl->fl_type != F_UNLCK)
+ if (fl->fl_core.flc_type != F_UNLCK)
return res;

/* convert posix lock to p9 tgetlock args */
@@ -246,7 +245,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
glock.length = 0;
else
glock.length = fl->fl_end - fl->fl_start + 1;
- glock.proc_id = fl->fl_pid;
+ glock.proc_id = fl->fl_core.flc_pid;
glock.client_id = fid->clnt->name;

res = p9_client_getlock_dotl(fid, &glock);
@@ -255,13 +254,13 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
/* map 9p lock type to os lock type */
switch (glock.type) {
case P9_LOCK_TYPE_RDLCK:
- fl->fl_type = F_RDLCK;
+ fl->fl_core.flc_type = F_RDLCK;
break;
case P9_LOCK_TYPE_WRLCK:
- fl->fl_type = F_WRLCK;
+ fl->fl_core.flc_type = F_WRLCK;
break;
case P9_LOCK_TYPE_UNLCK:
- fl->fl_type = F_UNLCK;
+ fl->fl_core.flc_type = F_UNLCK;
break;
}
if (glock.type != P9_LOCK_TYPE_UNLCK) {
@@ -270,7 +269,7 @@ static int v9fs_file_getlock(struct file *filp, struct file_lock *fl)
fl->fl_end = OFFSET_MAX;
else
fl->fl_end = glock.start + glock.length - 1;
- fl->fl_pid = -glock.proc_id;
+ fl->fl_core.flc_pid = -glock.proc_id;
}
out:
if (glock.client_id != fid->clnt->name)
@@ -294,7 +293,7 @@ static int v9fs_file_lock_dotl(struct file *filp, int cmd, struct file_lock *fl)
p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %pD\n",
filp, cmd, fl, filp);

- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_core.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
@@ -325,16 +324,16 @@ static int v9fs_file_flock_dotl(struct file *filp, int cmd,
p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %pD\n",
filp, cmd, fl, filp);

- if (!(fl->fl_flags & FL_FLOCK))
+ if (!(fl->fl_core.flc_flags & FL_FLOCK))
goto out_err;

- if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_type != F_UNLCK) {
+ if ((IS_SETLK(cmd) || IS_SETLKW(cmd)) && fl->fl_core.flc_type != F_UNLCK) {
filemap_write_and_wait(inode->i_mapping);
invalidate_mapping_pages(&inode->i_data, 0, -1);
}
/* Convert flock to posix lock */
- fl->fl_flags |= FL_POSIX;
- fl->fl_flags ^= FL_FLOCK;
+ fl->fl_core.flc_flags |= FL_POSIX;
+ fl->fl_core.flc_flags ^= FL_FLOCK;

if (IS_SETLK(cmd) | IS_SETLKW(cmd))
ret = v9fs_file_do_lock(filp, cmd, fl);

--
2.43.0