linux-kernel - [PATCH] sunrpc: make rpc_restart_call() and rpc_restart_call

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Message-Id: <20250205-sunrpc-6-15-v1-1-57c723b72214@kernel.org>
Date: Wed, 05 Feb 2025 08:58:49 -0500
From: Jeff Layton <jlayton@...nel.org>
To: Trond Myklebust <trondmy@...nel.org>, Anna Schumaker <anna@...nel.org>
Cc: Chuck Lever <chuck.lever@...cle.com>, Neil Brown <neilb@...e.de>, 
 Olga Kornievskaia <okorniev@...hat.com>, Dai Ngo <Dai.Ngo@...cle.com>, 
 Tom Talpey <tom@...pey.com>, linux-nfs@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Jeff Layton <jlayton@...nel.org>
Subject: [PATCH] sunrpc: make rpc_restart_call() and
 rpc_restart_call_prepare() void return

These functions always return 1. Make them void return and fix up the
places that check the return code.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 fs/nfs/nfs4proc.c           | 12 +++++-------
 fs/nfsd/nfs4callback.c      |  8 +++-----
 include/linux/sunrpc/clnt.h |  4 ++--
 net/sunrpc/clnt.c           |  7 +++----
 4 files changed, 13 insertions(+), 18 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 405f17e6e0b45b26cebae06c5bbe932895af9a56..cda20bfeca56db1ef8c51e524d08908b93bfeba6 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -968,15 +968,13 @@ static int nfs41_sequence_process(struct rpc_task *task,
 retry_new_seq:
 	++slot->seq_nr;
 retry_nowait:
-	if (rpc_restart_call_prepare(task)) {
-		nfs41_sequence_free_slot(res);
-		task->tk_status = 0;
-		ret = 0;
-	}
+	rpc_restart_call_prepare(task);
+	nfs41_sequence_free_slot(res);
+	task->tk_status = 0;
+	ret = 0;
 	goto out;
 out_retry:
-	if (!rpc_restart_call(task))
-		goto out;
+	rpc_restart_call(task);
 	rpc_delay(task, NFS4_POLL_RETRY_MAX);
 	return 0;
 }
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index c083e539e898ba6593bc0d6185ccb8692aae6a95..b6d30111f7c85b0814ebd0821c4967574ca97e56 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1350,9 +1350,7 @@ static bool nfsd4_cb_sequence_done(struct rpc_task *task, struct nfsd4_callback
 		goto need_restart;
 	case -NFS4ERR_DELAY:
 		cb->cb_seq_status = 1;
-		if (!rpc_restart_call(task))
-			goto out;
-
+		rpc_restart_call(task);
 		rpc_delay(task, 2 * HZ);
 		return false;
 	case -NFS4ERR_BADSLOT:
@@ -1374,8 +1372,8 @@ static bool nfsd4_cb_sequence_done(struct rpc_task *task, struct nfsd4_callback
 out:
 	return ret;
 retry_nowait:
-	if (rpc_restart_call_prepare(task))
-		ret = false;
+	rpc_restart_call_prepare(task);
+	ret = false;
 	goto out;
 need_restart:
 	if (!test_bit(NFSD4_CLIENT_CB_KILL, &clp->cl_flags)) {
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 5321585c778fcc1fef0e0420cb481786c02a7aac..e56f15c97fa24c735090c21c51ef312bfd877cfd 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -213,8 +213,8 @@ int		rpc_call_sync(struct rpc_clnt *clnt,
 			      const struct rpc_message *msg, int flags);
 struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
 			       int flags);
-int		rpc_restart_call_prepare(struct rpc_task *);
-int		rpc_restart_call(struct rpc_task *);
+void		rpc_restart_call_prepare(struct rpc_task *task);
+void		rpc_restart_call(struct rpc_task *task);
 void		rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
 struct net *	rpc_net_ns(struct rpc_clnt *);
 size_t		rpc_max_payload(struct rpc_clnt *);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 0090162ee8c350568c91f1bcd951675ac3ae141c..3d2989120599ccee32e8827b1790d4be7d7a565a 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1670,20 +1670,19 @@ void rpc_force_rebind(struct rpc_clnt *clnt)
 }
 EXPORT_SYMBOL_GPL(rpc_force_rebind);
 
-static int
+static void
 __rpc_restart_call(struct rpc_task *task, void (*action)(struct rpc_task *))
 {
 	task->tk_status = 0;
 	task->tk_rpc_status = 0;
 	task->tk_action = action;
-	return 1;
 }
 
 /*
  * Restart an (async) RPC call. Usually called from within the
  * exit handler.
  */
-int
+void
 rpc_restart_call(struct rpc_task *task)
 {
 	return __rpc_restart_call(task, call_start);
@@ -1694,7 +1693,7 @@ EXPORT_SYMBOL_GPL(rpc_restart_call);
  * Restart an (async) RPC call from the call_prepare state.
  * Usually called from within the exit handler.
  */
-int
+void
 rpc_restart_call_prepare(struct rpc_task *task)
 {
 	if (task->tk_ops->rpc_call_prepare != NULL)

---
base-commit: ffd294d346d185b70e28b1a28abe367bbfe53c04
change-id: 20250205-sunrpc-6-15-f19946041dfa

Best regards,
-- 
Jeff Layton <jlayton@...nel.org>