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authorFrederic Weisbecker <fweisbec@gmail.com>2010-01-07 12:57:47 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2010-01-07 13:46:48 +0100
commit6c28705418de012216161b14a2ff1dda3da3d786 (patch)
treef9765f8ef8dc55a61ba354fb2516a4d172ef4591 /fs/reiserfs
parent4f3be1b5a98587b86cae05aa5d129dd0b3fff466 (diff)
downloadtalos-obmc-linux-6c28705418de012216161b14a2ff1dda3da3d786.tar.gz
talos-obmc-linux-6c28705418de012216161b14a2ff1dda3da3d786.zip
reiserfs: Don't call reiserfs_get_acl() with the reiserfs lock
reiserfs_get_acl is usually not called under the reiserfs lock, as it doesn't need it. But it happens when it is called by reiserfs_acl_chmod(), which creates a dependency inversion against the private xattr inodes mutexes for the given inode. We need to call it without the reiserfs lock, especially since it's unnecessary. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Christian Kujau <lists@nerdbynature.de> Cc: Alexander Beregalov <a.beregalov@gmail.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/reiserfs')
-rw-r--r--fs/reiserfs/xattr_acl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 35d6e672a279..f559c9e1efc8 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -452,7 +452,9 @@ int reiserfs_acl_chmod(struct inode *inode)
return 0;
}
+ reiserfs_write_unlock(inode->i_sb);
acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
+ reiserfs_write_lock(inode->i_sb);
if (!acl)
return 0;
if (IS_ERR(acl))
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