From: Jan Kara <jack@suse.cz>
Date: Thu, 2 Oct 2014 01:49:46 +0000 (-0400)
Subject: ext4: fix mmap data corruption when blocksize < pagesize
X-Git-Tag: fixes-against-v3.18-rc2~28^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6320cbfc92910a3e5f10c42d98c231c98db4f60;p=pandora-kernel.git

ext4: fix mmap data corruption when blocksize < pagesize

Use truncate_isize_extended() when hole is being created in a file so that
->page_mkwrite() will get called for the partial tail page if it is
mmaped (see the first patch in the series for details).

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
---

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