From: Christoph Hellwig <hch@infradead.org>
Date: Wed, 4 Jul 2012 14:54:50 +0000 (-0400)
Subject: xfs: do not read the AGI buffer in xfs_dialloc until nessecary
X-Git-Tag: v3.6-rc1~42^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be60fe54b216a62403b816d3930a66ad7c51cbc6;p=pandora-kernel.git

xfs: do not read the AGI buffer in xfs_dialloc until nessecary

Refactor the AG selection loop in xfs_dialloc to operate on the in-memory
perag data as much as possible.  We only read the AGI buffer once we have
selected an AG to allocate inodes now instead of for every AG considered.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---

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