From: Josef Bacik <jbacik@fb.com>
Date: Wed, 11 Feb 2015 20:08:58 +0000 (-0500)
Subject: Btrfs: don't set and clear delalloc for O_DIRECT writes
X-Git-Tag: fixes-v4.0-rc1~50^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3266789f9d08b27275bae5ab1dcd27d1bbf15e79;p=pandora-kernel.git

Btrfs: don't set and clear delalloc for O_DIRECT writes

We do this to get the space accounting, but this is just needless churn on the
io_tree, so just drop setting/clearing delalloc and just drop the reserved data
space when we have a successfull allocation.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
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