From: Zach Brown <zab@redhat.com>
Date: Wed, 16 Oct 2013 19:10:33 +0000 (-0700)
Subject: btrfs: remove move_pages()
X-Git-Tag: v3.13-rc1~85^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1877e1a747db33d7264d8046e96373962da72a3d;p=pandora-kernel.git

btrfs: remove move_pages()

move_pages() has an inefficient backwards byte copy of regions of two
different pages.  They're different pages so the regions won't overlap
and it could use memcpy().

At that point, though, move_pages() would be a slightly dimmer
re-implementation of copy_pages() that lacked the test for overlapping
page regions.

So remove move_pages() and just call copy_pages().

Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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