In nfsd4_run_cb_work if the rpc_clnt for the back channel is no longer
exists, the callback state in nfs4_client should be marked as NFSD4_CB_DOWN
so the server can notify the client to establish a new back channel
connection when it reconnects.
Signed-off-by: Dai Ngo <dai.ngo@xxxxxxxxxx>
---
fs/nfsd/nfs4callback.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index cf87ace7a1b0..f8bb5ff2e9ac 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1491,9 +1491,14 @@ nfsd4_run_cb_work(struct work_struct *work)
clnt = clp->cl_cb_client;
if (!clnt) {
- if (test_bit(NFSD4_CLIENT_CB_KILL, &clp->cl_flags))
+ if (test_bit(NFSD4_CLIENT_CB_KILL, &clp->cl_flags)) {
nfsd41_destroy_cb(cb);
- else {
+ clear_bit(NFSD4_CLIENT_CB_KILL, &clp->cl_flags);
+
+ /* let client knows BC is down when it reconnects */
+ clear_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags);
+ nfsd4_mark_cb_down(clp);
+ } else {
/*
* XXX: Ideally, we could wait for the client to
* reconnect, but I haven't figured out how
--
2.39.3
