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authorChristoph Hellwig <hch@lst.de>2009-05-05 15:40:36 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:07 -0400
commit6cfd0148425e528b859b26e436b01f23f6926224 (patch)
tree60e3257053554ff198fe5825e6f12a00c3b4422a /fs/super.c
parenta9e220f8322e2b0e0b8903fe00265461cffad3f0 (diff)
downloadlinux-6cfd0148425e528b859b26e436b01f23f6926224.tar.gz
push BKL down into ->put_super
Move BKL into ->put_super from the only caller.  A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment.  Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.

[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/super.c')
-rw-r--r--fs/super.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/super.c b/fs/super.c
index 54fd331f0cab..bdd7158b785e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -309,7 +309,6 @@ void generic_shutdown_super(struct super_block *sb)
 
 		/* bad name - it should be evict_inodes() */
 		invalidate_inodes(sb);
-		lock_kernel();
 
 		if (sop->put_super)
 			sop->put_super(sb);
@@ -320,8 +319,6 @@ void generic_shutdown_super(struct super_block *sb)
 			   "Self-destruct in 5 seconds.  Have a nice day...\n",
 			   sb->s_id);
 		}
-
-		unlock_kernel();
 		put_fs_excl();
 	}
 	spin_lock(&sb_lock);