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-rw-r--r--fs/nfsd/nfs4state.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a298c3d62ba6..ec24272529a0 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4122,8 +4122,28 @@ nfsd4_end_grace(struct nfsd_net *nn)
dprintk("NFSD: end of grace period\n");
nn->grace_ended = true;
+ /*
+ * If the server goes down again right now, an NFSv4
+ * client will still be allowed to reclaim after it comes back up,
+ * even if it hasn't yet had a chance to reclaim state this time.
+ *
+ */
nfsd4_record_grace_done(nn);
+ /*
+ * At this point, NFSv4 clients can still reclaim. But if the
+ * server crashes, any that have not yet reclaimed will be out
+ * of luck on the next boot.
+ *
+ * (NFSv4.1+ clients are considered to have reclaimed once they
+ * call RECLAIM_COMPLETE. NFSv4.0 clients are considered to
+ * have reclaimed after their first OPEN.)
+ */
locks_end_grace(&nn->nfsd4_manager);
+ /*
+ * At this point, and once lockd and/or any other containers
+ * exit their grace period, further reclaims will fail and
+ * regular locking can resume.
+ */
}
static time_t
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