From: Yan, Zheng <zheng.yan@oracle.com>
Date: Wed, 14 Oct 2009 13:24:59 +0000 (-0400)
Subject: Btrfs: properly wait log writers during log sync
X-Git-Tag: v2.6.32-rc5~8^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86df7eb921a009515285e7171363fa57dd2d7d31;p=pandora-kernel.git

Btrfs: properly wait log writers during log sync

A recently fsync optimization make btrfs_sync_log skip calling
wait_for_writer in the single log writer case. This is incorrect
since the writer count can also be increased by btrfs_pin_log.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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