pnfs/blocklayout: return layouts on setattr
authorChristoph Hellwig <hch@lst.de>
Wed, 10 Sep 2014 15:23:36 +0000 (08:23 -0700)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Wed, 10 Sep 2014 19:47:03 +0000 (12:47 -0700)
This speads up truncate-heavy workloads like fsx by multiple orders of
magnitude.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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