From: Jan Kara <jack@suse.cz>
Date: Fri, 12 Apr 2013 04:03:19 +0000 (-0400)
Subject: ext4: clear buffer_uninit flag when submitting IO
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~83^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b001d6a0c0c7b92e989c2c3b1d8e151f1df1acc;p=pandora-kernel.git

ext4: clear buffer_uninit flag when submitting IO

Currently noone cleared buffer_uninit flag. This results in writeback
needlessly marking io_end as needing extent conversion scanning extent
tree for extents to convert. So clear the buffer_uninit flag once the
buffer is submitted for IO and the flag is transformed into
EXT4_IO_END_UNWRITTEN flag.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
---

Reading git-diff-tree failed