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NFSv4: Don't try to CLOSE if the stateid 'other' field has changed

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If the stateid is no longer recognised on the server, either due to a
restart, or due to a competing CLOSE call, then we do not have to
retry. Any open contexts that triggered a reopen of the file, will
also act as triggers for any CLOSE for the updated stateids.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust
2017-11-06 15:28:06 -05:00
committed by Anna Schumaker
parent 12f275cdd1
commit c82bac6f4b
3 changed files with 13 additions and 12 deletions
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2
fs/nfs/nfs4_fs.h
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@@ -462,6 +462,8 @@ extern int nfs4_select_rw_stateid(struct nfs4_state *, fmode_t,
struct rpc_cred **);
extern bool nfs4_refresh_open_stateid(nfs4_stateid *dst,
struct nfs4_state *state);
extern bool nfs4_copy_open_stateid(nfs4_stateid *dst,
struct nfs4_state *state);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);