quota: paranoia: check quota tree root
authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Thu, 12 Feb 2015 09:36:49 +0000 (12:36 +0300)
committerJan Kara <jack@suse.cz>
Wed, 4 Mar 2015 15:42:45 +0000 (16:42 +0100)
commit69a25ee217ba8c93a6d4c6671d9208c0155c0485
tree73a30e75c15e5d0a6533db1852e4b193491e3e6a
parent5bcd3b6f639c277ed7fa71f2f8ed6fb072615011
quota: paranoia: check quota tree root

Root level in quota tree must be already allocated otherwise this block
could be used for something else.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jan Kara <jack@suse.cz>
fs/quota/quota_tree.c