From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 11 Sep 2008 19:53:12 +0000 (-0400)
Subject: Btrfs: Dir fsync optimizations
X-Git-Tag: v2.6.29-rc1~27^2~9^2~55^2~56^2~30^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49eb7e46d47ea72a9bd2a5f8cedb04f5159cc277;p=pandora-kernel.git

Btrfs: Dir fsync optimizations

Drop i_mutex during the commit

Don't bother doing the fsync at all unless the dir is marked as dirtied
and needing fsync in this transaction.  For directories, this means
that someone has unlinked a file from the dir without fsyncing the
file.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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