From: Sage Weil <sage@newdream.net>
Date: Fri, 24 Jul 2009 17:17:44 +0000 (-0400)
Subject: Btrfs: make flushoncommit mount option correctly wait on ordered_extents
X-Git-Tag: v2.6.31-rc5~75^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ebecd3d9d2adba144c15f1d35c78e0c26ead1bfd;p=pandora-kernel.git

Btrfs: make flushoncommit mount option correctly wait on ordered_extents

The commit_transaction call to wait_ordered_extents when snap_pending
passes nocow_only=1 to process only NOCOW or PREALLOC extents.  This isn't
correct for the 'flushoncommit' mode, as it skips extents we just started
IO on in start_delalloc_inodes.

So, in the flushoncommit case, wait on all ordered extents.  Otherwise,
only pass the nocow_only flag to wait_ordered_extents if snap_pending.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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