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nfsd: set the MAY_NOTIFY_LOCK flag in OPEN replies

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If we are using v4.1+, then we can send notification when contended
locks become free. Inform the client of that fact.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton 2016-09-16 16:28:27 -04:00 committed by J. Bruce Fields
parent b4c8eb0379
commit 19e4c3477f
1 changed files with 4 additions and 2 deletions
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6
fs/nfsd/nfs4state.c
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@ -4490,9 +4490,11 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
* To finish the open response, we just need to set the rflags.
*/
open->op_rflags = NFS4_OPEN_RESULT_LOCKTYPE_POSIX;
if (!(open->op_openowner->oo_flags & NFS4_OO_CONFIRMED) &&
!nfsd4_has_session(&resp->cstate))
if (nfsd4_has_session(&resp->cstate))
open->op_rflags |= NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK;
else if (!(open->op_openowner->oo_flags & NFS4_OO_CONFIRMED))
open->op_rflags |= NFS4_OPEN_RESULT_CONFIRM;
if (dp)
nfs4_put_stid(&dp->dl_stid);
if (stp)