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[PATCH] Revert bd_mount_mutex back to a semaphore

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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>
This commit is contained in:
David Chinner
2007-01-10 23:15:41 -08:00
committed by Linus Torvalds
parent 88bf7b391d
commit f73ca1b76c
5 changed files with 9 additions and 9 deletions
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2
include/linux/fs.h
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@@ -459,7 +459,7 @@ struct block_device {
struct inode * bd_inode; /* will die */
int bd_openers;
struct mutex bd_mutex; /* open/close mutex */
struct mutex bd_mount_mutex; /* mount mutex */
struct semaphore bd_mount_sem;
struct list_head bd_inodes;
void * bd_holder;
int bd_holders;