xfs: convert xfsbud shrinker to a per-buftarg shrinker.

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Before we introduce per-buftarg LRU lists, split the shrinker
implementation into per-buftarg shrinker callbacks. At the moment
we wake all the xfsbufds to run the delayed write queues to free
the dirty buffers and make their pages available for reclaim.
However, with an LRU, we want to be able to free clean, unused
buffers as well, so we need to separate the xfsbufd from the
shrinker callbacks.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>

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Dave Chinner 2010-11-30 17:27:57 +11:00 • committed by Dave Chinner

parent 1a427ab0c1

commit ff57ab2199

2 changed files with 27 additions and 66 deletions

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89

fs/xfs/linux-2.6/xfs_buf.c

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4

fs/xfs/linux-2.6/xfs_buf.h

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