From 8de49e674a1133ab8998914a6e933ceb4b5f4b07 Mon Sep 17 00:00:00 2001
From: Kazuya Mio <k-mio@sx.jp.nec.com>
Date: Thu, 20 Oct 2011 19:23:08 -0400
Subject: [PATCH] ext4: fix the deadlock in mpage_da_map_and_submit()

If ext4_jbd2_file_inode() in mpage_da_map_and_submit() fails due to
journal abort, this function returns to caller without unlocking the
page.  It leads to the deadlock, and the patch fixes this issue by
calling mpage_da_submit_io().

Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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