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(parent: c8a4051) | patch
xfs: avoid memory allocation under m_peraglock in growfs code
authorChristoph Hellwig <hch@infradead.org>
Sat, 18 Jul 2009 22:14:53 +0000 (18:14 -0400)
committerFelix Blyakher <felixb@sgi.com>
Wed, 12 Aug 2009 06:06:51 +0000 (01:06 -0500)
commit0cc6eee130b0c062feec8446d9cecdb17d2cfad3
tree488cbdb1fb8623285c4fb7c3a913516d7b7905d2tree | snapshot (tar.gz zip)
parentc8a4051c3731b6db224482218cfd535ab9393ff8commit | diff
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>
fs/xfs/xfs_fsops.c diff | blob | blame | history