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authorMiklos Szeredi <mszeredi@suse.cz>2008-07-25 01:48:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:48 -0700
commitb648a6de00770cc325c22f43bdd4e935f6a2ee55 (patch)
treefa2bc39a63059573b2c74b963f2d0e91c5f31b3a /fs/locks.c
parentbde74e4bc64415b142e556a34d295a52a1b7da9d (diff)
locks: cleanup code duplication
Extract common code into a function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Matthew Wilcox <matthew@wil.cx> Cc: David Teigland <teigland@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/locks.c')
-rw-r--r--fs/locks.c71
1 files changed, 31 insertions, 40 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 1ce57b4b362c..6222e4b580e2 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1738,6 +1738,35 @@ int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, str
}
EXPORT_SYMBOL_GPL(vfs_lock_file);
+static int do_lock_file_wait(struct file *filp, unsigned int cmd,
+ struct file_lock *fl)
+{
+ int error;
+
+ error = security_file_lock(filp, fl->fl_type);
+ if (error)
+ return error;
+
+ if (filp->f_op && filp->f_op->lock != NULL)
+ error = filp->f_op->lock(filp, cmd, fl);
+ else {
+ for (;;) {
+ error = posix_lock_file(filp, fl, NULL);
+ if (error != FILE_LOCK_DEFERRED)
+ break;
+ error = wait_event_interruptible(fl->fl_wait,
+ !fl->fl_next);
+ if (!error)
+ continue;
+
+ locks_delete_block(fl);
+ break;
+ }
+ }
+
+ return error;
+}
+
/* Apply the lock described by l to an open file descriptor.
* This implements both the F_SETLK and F_SETLKW commands of fcntl().
*/
@@ -1795,26 +1824,7 @@ again:
goto out;
}
- error = security_file_lock(filp, file_lock->fl_type);
- if (error)
- goto out;
-
- if (filp->f_op && filp->f_op->lock != NULL)
- error = filp->f_op->lock(filp, cmd, file_lock);
- else {
- for (;;) {
- error = posix_lock_file(filp, file_lock, NULL);
- if (error != FILE_LOCK_DEFERRED)
- break;
- error = wait_event_interruptible(file_lock->fl_wait,
- !file_lock->fl_next);
- if (!error)
- continue;
-
- locks_delete_block(file_lock);
- break;
- }
- }
+ error = do_lock_file_wait(filp, cmd, file_lock);
/*
* Attempt to detect a close/fcntl race and recover by
@@ -1932,26 +1942,7 @@ again:
goto out;
}
- error = security_file_lock(filp, file_lock->fl_type);
- if (error)
- goto out;
-
- if (filp->f_op && filp->f_op->lock != NULL)
- error = filp->f_op->lock(filp, cmd, file_lock);
- else {
- for (;;) {
- error = posix_lock_file(filp, file_lock, NULL);
- if (error != FILE_LOCK_DEFERRED)
- break;
- error = wait_event_interruptible(file_lock->fl_wait,
- !file_lock->fl_next);
- if (!error)
- continue;
-
- locks_delete_block(file_lock);
- break;
- }
- }
+ error = do_lock_file_wait(filp, cmd, file_lock);
/*
* Attempt to detect a close/fcntl race and recover by

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