From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Fri, 12 Apr 2013 03:24:58 +0000 (-0400)
Subject: ext4: defragmentation code cleanup
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~83^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e8b12c60ad38fb90a162df4e6fc120e3bee104e;p=pandora-kernel.git

ext4: defragmentation code cleanup

- grab_cache_page_write_begin() may not wait on page's writeback since
  (1d1d1a767206). But it is still reasonable to wait on page's writeback
  here in order to be on the safe side.

- Fix miss typo: pass 'length' instead of 'end' to __block_write_begin()
  https://bugzilla.kernel.org/show_bug.cgi?id=56241

TESTCASE: git://oss.sgi.com/xfs/cmds/xfstests.git
MKFS_OPTIONS="-b1024" ; ./check ext4/304

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Akira Fujita <a-fujita.rs.jp.nec.com>
---

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