From: Josef Bacik <jbacik@fb.com>
Date: Mon, 22 Jun 2015 04:31:26 +0000 (-0400)
Subject: ext4: only call ext4_truncate when size <= isize
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~122^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3da40c7b089810ac9cf2bb1e59633f619f3a7312;p=pandora-kernel.git

ext4: only call ext4_truncate when size <= isize

At LSF we decided that if we truncate up from isize we shouldn't trim
fallocated blocks that were fallocated with KEEP_SIZE and are past the
new i_size.  This patch fixes ext4 to do this.

[ Completely reworked patch so that i_disksize would actually get set
  when truncating up.  Also reworked the code for handling truncate so
  that it's easier to handle. -- tytso ]

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
---

Reading git-diff-tree failed