From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 21 Mar 2014 01:10:51 +0000 (-0400)
Subject: switch mnt_hash to hlist
X-Git-Tag: v3.14~1^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38129a13e6e7;p=pandora-kernel.git

switch mnt_hash to hlist

fixes RCU bug - walking through hlist is safe in face of element moves,
since it's self-terminating.  Cyclic lists are not - if we end up jumping
to another hash chain, we'll loop infinitely without ever hitting the
original list head.

[fix for dumb braino folded]

Spotted by: Max Kellermann <mk@cm4all.com>
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/mount.h b/fs/mount.h
index acdb428de393..b29e42f05f34 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -25,7 +25,7 @@ struct mountpoint {
 };
 
 struct mount {
-	struct list_head mnt_hash;
+	struct hlist_node mnt_hash;
 	struct mount *mnt_parent;
 	struct dentry *mnt_mountpoint;
 	struct vfsmount mnt;
Reading git-diff-tree failed