From: Liu Bo <bo.li.liu@oracle.com>
Date: Thu, 27 Dec 2012 09:01:23 +0000 (+0000)
Subject: Btrfs: record first logical byte in memory
X-Git-Tag: v3.9-rc1~17^2~29^2~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a1897fddd28daf6b23d05a30dc2a18836f77f8e3;p=pandora-kernel.git

Btrfs: record first logical byte in memory

This'd save us a rbtree search which may become expensive in large filesystem.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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