commit 66189be74 (CIFS: Fix VFS lock usage for oplocked files) exported
the locks_delete_block symbol. There's already an exported helper
function that provides this capability however, so make cifs use that
instead and turn locks_delete_block back into a static function.
Note that if fl->fl_next == NULL then this lock has already been through
locks_delete_block(), so we should be OK to ignore an ENOENT error here
and simply not retry the lock.
Cc: Pavel Shilovsky <piastryyy@xxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
fs/cifs/file.c | 2 +-
fs/locks.c | 3 +--
include/linux/fs.h | 5 -----
3 files changed, 2 insertions(+), 8 deletions(-)
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 48b29d2..44a4f18 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -999,7 +999,7 @@ try_again:
rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next);
if (!rc)
goto try_again;
- locks_delete_block(flock);
+ posix_unblock_lock(file, flock);
}
return rc;
}
diff --git a/fs/locks.c b/fs/locks.c
index cb424a4..7a02064 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -496,13 +496,12 @@ static void __locks_delete_block(struct file_lock *waiter)
/*
*/
-void locks_delete_block(struct file_lock *waiter)
+static void locks_delete_block(struct file_lock *waiter)
{
lock_flocks();
__locks_delete_block(waiter);
unlock_flocks();
}
-EXPORT_SYMBOL(locks_delete_block);
/* Insert waiter into blocker's block list.
* We use a circular list so that processes can be easily woken up in
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 43db02e..b9d7816 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1006,7 +1006,6 @@ extern int vfs_setlease(struct file *, long, struct file_lock **);
extern int lease_modify(struct file_lock **, int);
extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
-extern void locks_delete_block(struct file_lock *waiter);
extern void lock_flocks(void);
extern void unlock_flocks(void);
#else /* !CONFIG_FILE_LOCKING */
@@ -1151,10 +1150,6 @@ static inline int lock_may_write(struct inode *inode, loff_t start,
return 1;
}
-static inline void locks_delete_block(struct file_lock *waiter)
-{
-}
-
static inline void lock_flocks(void)
{
}
--
1.7.1
--
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