xfs: avoid memory allocation under m_peraglock in growfs code

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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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Christoph Hellwig 2009-07-18 18:14:53 -04:00 • committed by Felix Blyakher

parent c8a4051c37

commit 0cc6eee130

1 changed files with 14 additions and 6 deletions

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fs/xfs/xfs_fsops.c

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