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authorDavid Chinner <dgc@sgi.com>2007-01-10 23:15:41 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2007-01-11 18:18:21 -0800
commitf73ca1b76c6880b934d3ef566c1592efc80bb759 (patch)
treec9384ef5ff0ba68817858afdcc330e8707b11ec9 /fs/super.c
parent88bf7b391dca840f03fe25e4ff8fe6b4319fa07b (diff)
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[PATCH] Revert bd_mount_mutex back to a semaphore
Revert bd_mount_mutex back to a semaphore so that xfs_freeze -f /mnt/newtest; xfs_freeze -u /mnt/newtest works safely and doesn't produce lockdep warnings. (XFS unlocks the semaphore from a different task, by design. The mutex code warns about this) Signed-off-by: Dave Chinner <dgc@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/super.c b/fs/super.c
index f961e030799..3e7458c2bb7 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -753,9 +753,9 @@ int get_sb_bdev(struct file_system_type *fs_type,
* will protect the lockfs code from trying to start a snapshot
* while we are mounting
*/
- mutex_lock(&bdev->bd_mount_mutex);
+ down(&bdev->bd_mount_sem);
s = sget(fs_type, test_bdev_super, set_bdev_super, bdev);
- mutex_unlock(&bdev->bd_mount_mutex);
+ up(&bdev->bd_mount_sem);
if (IS_ERR(s))
goto error_s;