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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-11-06 21:28:06 +0100 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-11-17 22:43:47 +0100 |
| commit | c82bac6f4b2af18dcb392b10e80c809ee17b2b1b (patch) | |
| tree | c68e49c1840829041c7b8a15ede99f0b9a573ed7 /fs/nfs/nfs4state.c | |
| parent | NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID. (diff) | |
| download | linux-c82bac6f4b2af18dcb392b10e80c809ee17b2b1b.tar.xz linux-c82bac6f4b2af18dcb392b10e80c809ee17b2b1b.zip | |
NFSv4: Don't try to CLOSE if the stateid 'other' field has changed
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>
Diffstat (limited to '')
| -rw-r--r-- | fs/nfs/nfs4state.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index cee1e000b41e..b6a0cf7fa1f6 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1002,18 +1002,23 @@ bool nfs4_refresh_open_stateid(nfs4_stateid *dst, struct nfs4_state *state) return ret; } -static void nfs4_copy_open_stateid(nfs4_stateid *dst, struct nfs4_state *state) +bool nfs4_copy_open_stateid(nfs4_stateid *dst, struct nfs4_state *state) { + bool ret; const nfs4_stateid *src; int seq; do { + ret = false; src = &zero_stateid; seq = read_seqbegin(&state->seqlock); - if (test_bit(NFS_OPEN_STATE, &state->flags)) + if (test_bit(NFS_OPEN_STATE, &state->flags)) { src = &state->open_stateid; + ret = true; + } nfs4_stateid_copy(dst, src); } while (read_seqretry(&state->seqlock, seq)); + return ret; } /* |