From 6c28705418de012216161b14a2ff1dda3da3d786 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Thu, 7 Jan 2010 12:57:47 +0100 Subject: [PATCH] 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 Cc: Christian Kujau Cc: Alexander Beregalov Cc: Chris Mason Cc: Ingo Molnar --- fs/reiserfs/xattr_acl.c | 2 ++ 1 file changed, 2 insertions(+) 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))