From: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
Date: Fri, 13 Feb 2015 04:00:17 +0000 (-0500)
Subject: ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0572639ff66dcffe62d37adfe4c4576f9fc398f4;p=pandora-kernel.git

ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize

Since commit 90a8020 and d6320cb, Jan Kara has fixed this issue partially.
This mmap data corruption still exists in nodelalloc mode, fix this.

Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by:   Jan Kara <jack@suse.cz>
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