From 5b53dc88b064cb93274e7fb81f8df477287c80df Mon Sep 17 00:00:00 2001 From: Kinglong Mee Date: Mon, 4 Aug 2014 16:18:16 +0800 Subject: [PATCH] NFS: Avoid infinite loop when RELEASE_LOCKOWNER getting expired error Fix Commit 60ea681299 (NFS: Migration support for RELEASE_LOCKOWNER) If getting expired error, client will enter a infinite loop as, client server RELEASE_LOCKOWNER(old clid) -----> <--- expired error RENEW(old clid) -----> <--- expired error SETCLIENTID -----> <--- a new clid SETCLIENTID_CONFIRM (new clid) --> <--- ok RELEASE_LOCKOWNER(old clid) -----> <--- expired error RENEW(new clid) -----> <-- ok RELEASE_LOCKOWNER(old clid) -----> <--- expired error RENEW(new clid) -----> <-- ok ... ... Signed-off-by: Kinglong Mee [Trond: replace call to nfs4_async_handle_error() with nfs4_schedule_lease_recovery()] Signed-off-by: Trond Myklebust --- fs/nfs/nfs4proc.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 66fd901d5fae..75ae8d22f067 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5942,8 +5942,10 @@ struct nfs_release_lockowner_data { static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata) { struct nfs_release_lockowner_data *data = calldata; - nfs40_setup_sequence(data->server, - &data->args.seq_args, &data->res.seq_res, task); + struct nfs_server *server = data->server; + nfs40_setup_sequence(server, &data->args.seq_args, + &data->res.seq_res, task); + data->args.lock_owner.clientid = server->nfs_client->cl_clientid; data->timestamp = jiffies; } @@ -5960,6 +5962,8 @@ static void nfs4_release_lockowner_done(struct rpc_task *task, void *calldata) break; case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_EXPIRED: + nfs4_schedule_lease_recovery(server->nfs_client); + break; case -NFS4ERR_LEASE_MOVED: case -NFS4ERR_DELAY: if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) -- 2.20.1