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NFSv4.1: Defer bumping the slot sequence number until we free the slot

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For operations like OPEN or LAYOUTGET, which return recallable state
(i.e. delegations and layouts) we want to enable the mechanism for
resolving recall races in RFC5661 Section 2.10.6.3.
To do so, we will want to defer bumping the slot's sequence number until
we have finished processing the RPC results.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2016-08-28 10:28:25 -04:00
parent 045d2a6d07
commit 07e8dcbda7
2 changed files with 9 additions and 3 deletions
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3
fs/nfs/nfs4session.h
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@@ -21,7 +21,8 @@ struct nfs4_slot {
unsigned long generation;
u32 slot_nr;
u32 seq_nr;
unsigned int interrupted : 1;
unsigned int interrupted : 1,
seq_done : 1;
};
/* Sessions */