NFSv4: Fix open create exclusive when the server reboots

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If the server that does not implement NFSv4.1 persistent session
semantics reboots while we are performing an exclusive create,
then the return value of NFS4ERR_DELAY when we replay the open
during the grace period causes us to lose the verifier.
When the grace period expires, and we present a new verifier,
the server will then correctly reply NFS4ERR_EXIST.

This commit ensures that we always present the same verifier when
replaying the OPEN.

Reported-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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Trond Myklebust 2017-11-06 15:28:03 -05:00 • committed by Anna Schumaker

parent ad9e02dc02

commit 8fd1ab747d

1 changed files with 26 additions and 15 deletions

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fs/nfs/nfs4proc.c

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