nfs41: add a helper to mark layout for return

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It marks all matching layout segments as NFS_LSEG_LAYOUTRETURN,
which is an indicator for pnfs_put_lseg() to send layoutreturn,
and also prevents pnfs_update_layout() from using the returning
segments. Once it is set, it never gets cleared.

It also sets proper io failure bit so that pnfs path can be retried
after PNFS_LAYOUTGET_RETRY_TIMEOUT second.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>

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Peng Tao 2014-09-06 00:53:23 +08:00 • committed by Tom Haynes

parent f40eb5d044

commit 016256df3a

2 changed files with 59 additions and 0 deletions

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55

fs/nfs/pnfs.c

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4

fs/nfs/pnfs.h

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