From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 18 Jul 2009 22:14:53 +0000 (-0400)
Subject: xfs: avoid memory allocation under m_peraglock in growfs code
X-Git-Tag: v2.6.32-rc1~661^2^2~17^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=efe1f30e8f05a3836dfcf6302774707b3b47193f;p=pandora-kernel.git

xfs: avoid memory allocation under m_peraglock in growfs code

Allocate the memory for the larger m_perag array before taking the
per-AG lock as the per-AG lock can be taken under the i_lock which
can be taken from reclaim context.

Reported by the new reclaim context tracing in lockdep.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
---

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