From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 22 Mar 2011 11:23:43 +0000 (+1100)
Subject: fs: pull inode->i_lock up out of writeback_single_inode
X-Git-Tag: v2.6.39-rc1~75^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f1b1fd86f6fd662e04da3e82a6780b226fcd0d1;p=pandora-kernel.git

fs: pull inode->i_lock up out of writeback_single_inode

First thing we do in writeback_single_inode() is take the i_lock and
the last thing we do is drop it. A caller already holds the i_lock,
so pull the i_lock out of writeback_single_inode() to reduce the
round trips on this lock during inode writeback.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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