From: Chris Mason <chris.mason@oracle.com>
Date: Tue, 9 Jun 2009 22:35:15 +0000 (-0400)
Subject: Btrfs: avoid allocation clusters that are too spread out
X-Git-Tag: v2.6.31-rc1~380^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c604480171c510c1beeb81b82418e5bc4de8f1ae;p=pandora-kernel.git

Btrfs: avoid allocation clusters that are too spread out

In SSD mode for data, and all the time for metadata the allocator
will try to find a cluster of nearby blocks for allocations.  This
commit adds extra checks to make sure that each free block in the
cluster is close to the last one.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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