From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Wed, 6 Nov 2013 15:12:40 +0000 (+0000)
Subject: Btrfs: don't wait for ordered data outside desired range
X-Git-Tag: v3.13-rc1~13^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b52abf1e3b65b4fbd42b39412e040b561faec6a6;p=pandora-kernel.git

Btrfs: don't wait for ordered data outside desired range

In btrfs_wait_ordered_range(), if we found an extent to the left
of the start of our desired wait range and the last byte of that
extent is 1 less than the desired range's start, we would would
wait for the IO completion of that extent unnecessarily.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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