From: Josef Bacik <josef@redhat.com>
Date: Mon, 26 Sep 2011 17:56:12 +0000 (-0400)
Subject: Btrfs: introduce convert_extent_bit
X-Git-Tag: v3.2-rc1~21^2~24^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=462d6fac8960a3ba797927adfcbd29d503eb16fd;p=pandora-kernel.git

Btrfs: introduce convert_extent_bit

If I have a range where I know a certain bit is and I want to set it to another
bit the only option I have is to call set and then clear bit, which will result
in 2 tree searches.  This is inefficient, so introduce convert_extent_bit which
will go through and set the bit I want and clear the old bit I don't want.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
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