From: Djalal Harouni <tixxdz@opendz.org>
Date: Tue, 3 Jan 2012 01:31:52 +0000 (+0100)
Subject: ext{3,4}: Fix potential race when setversion ioctl updates inode
X-Git-Tag: v3.3-rc1~149^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c2155b9cc5a193e85194bbeaae2e2e4512dd597;p=pandora-kernel.git

ext{3,4}: Fix potential race when setversion ioctl updates inode

The EXT{3,4}_IOC_SETVERSION ioctl() updates i_ctime and i_generation
without i_mutex. This can lead to a race with the other operations that
update i_ctime. This is not a big issue but let's make the ioctl consistent
with how we handle e.g. other timestamp updates and use i_mutex to protect
inode changes.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
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