From: Eryu Guan <guaneryu@gmail.com>
Date: Tue, 28 Jul 2015 19:08:41 +0000 (-0400)
Subject: ext4: update c/mtime on truncate up
X-Git-Tag: omap-for-v4.3/fixes-rc1~107^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=911af577de4e444622d46500c1f9a37ab4335d3a;p=pandora-kernel.git

ext4: update c/mtime on truncate up

Commit 3da40c7b0898 ("ext4: only call ext4_truncate when size <= isize")
introduced a bug that c/mtime is not updated on truncate up.

Fix the issue by setting c/mtime explicitly in the truncate up case.

Note that ftruncate(2) is not affected, so you won't see this bug using
truncate(1) and xfs_io(1).

Signed-off-by: Zirong Lang <zorro.lang@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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