nfs41: change PNFS_LAYOUTRET_ON_SETATTR to only return on truncation to smaller size

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Both blocks layout and objects layout want to use it to avoid CB_LAYOUTRECALL
but that should only happen if client is doing truncation to a smaller size.
For other cases, we let server decide if it wants to recall client's layouts.
Change PNFS_LAYOUTRET_ON_SETATTR to follow the logic and not to send
layoutreturn unnecessarily.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Boaz Harrosh <boaz@plexistor.com>
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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Peng Tao 2014-09-12 11:04:10 +08:00 • committed by Trond Myklebust

parent cb8c20fa53

commit 88ac815cdb

2 changed files with 5 additions and 2 deletions

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4

fs/nfs/nfs4proc.c

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3

fs/nfs/pnfs.h

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