From 5a0dc7365c240795bf190766eba7a27600be3b3e Mon Sep 17 00:00:00 2001
From: Yongqiang Yang <xiaoqiangnk@gmail.com>
Date: Tue, 13 Dec 2011 22:29:12 -0500
Subject: [PATCH] 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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