[CIFS] Change semaphore to mutex for cifs lock_sem

Originally at http://lkml.org/lkml/2006/9/2/86

The recent change to "allow Windows blocking locks to be cancelled via a
CANCEL_LOCK call" introduced a new semaphore in struct cifsFileInfo,
lock_sem.  However, semaphores used as mutexes are deprecated these days,
and there's no reason to add a new one to the kernel.  Therefore, convert
lock_sem to a struct mutex (and also fix one indentation glitch on one of
the lines changed anyway).

Signed-off-by: Roland Dreier <roland@digitalvampire.org>
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index e4de8eba4780..23655de2f4a4 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -311,7 +311,7 @@ struct cifsFileInfo {
         /* lock scope id (0 if none) */
         struct file * pfile; /* needed for writepage */
         struct inode * pInode; /* needed for oplock break */
-        struct semaphore lock_sem;
+        struct mutex lock_mutex;
         struct list_head llist; /* list of byte range locks we have. */
         unsigned closePend:1;   /* file is marked to close */
         unsigned invalidHandle:1;  /* file closed via session abend */