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[PATCH] lockdep: annotate sb ->s_umount

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The s_umount rwsem needs to be classified as per-superblock since it's
perfectly legit to keep multiple of those recursively in the VFS locking
rules.

Has no effect on non-lockdep kernels.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: 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:
Arjan van de Ven 2006-07-03 00:25:28 -07:00 • committed by Linus Torvalds
parent cf51624999
commit 897c6ff956
2 changed files with 2 additions and 0 deletions
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1
include/linux/fs.h
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@ -1296,6 +1296,7 @@ struct file_system_type {
struct file_system_type * next;
struct list_head fs_supers;
struct lock_class_key s_lock_key;
struct lock_class_key s_umount_key;
};
extern int get_sb_bdev(struct file_system_type *fs_type,