From: Yongqiang Yang <xiaoqiangnk@gmail.com>
Date: Wed, 14 Dec 2011 03:29:12 +0000 (-0500)
Subject: ext4: handle EOF correctly in ext4_bio_write_page()
X-Git-Tag: v3.2-rc6~16^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a0dc7365c240795bf190766eba7a27600be3b3e;p=pandora-kernel.git

ext4: handle EOF correctly in ext4_bio_write_page()

We need to zero out part of a page which beyond EOF before setting uptodate,
otherwise, mapread or write will see non-zero data beyond EOF.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
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