linux-kernel - [PATCH 5.10 58/66] SUNRPC: Clean up scheduling of autoclose

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Message-Id: <20220516193621.089029920@linuxfoundation.org>
Date:   Mon, 16 May 2022 21:36:58 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        Meena Shanmugam <meenashanmugam@...gle.com>
Subject: [PATCH 5.10 58/66] SUNRPC: Clean up scheduling of autoclose

From: Trond Myklebust <trond.myklebust@...merspace.com>

commit e26d9972720e2484f44cdd94ca4e31cc372ed2ed upstream.

Consolidate duplicated code in xprt_force_disconnect() and
xprt_conditional_disconnect().

Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Meena Shanmugam <meenashanmugam@...gle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/sunrpc/xprt.c |   28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -732,6 +732,20 @@ void xprt_disconnect_done(struct rpc_xpr
 EXPORT_SYMBOL_GPL(xprt_disconnect_done);
 
 /**
+ * xprt_schedule_autoclose_locked - Try to schedule an autoclose RPC call
+ * @xprt: transport to disconnect
+ */
+static void xprt_schedule_autoclose_locked(struct rpc_xprt *xprt)
+{
+	set_bit(XPRT_CLOSE_WAIT, &xprt->state);
+	if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
+		queue_work(xprtiod_workqueue, &xprt->task_cleanup);
+	else if (xprt->snd_task && !test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
+		rpc_wake_up_queued_task_set_status(&xprt->pending,
+						   xprt->snd_task, -ENOTCONN);
+}
+
+/**
  * xprt_force_disconnect - force a transport to disconnect
  * @xprt: transport to disconnect
  *
@@ -742,13 +756,7 @@ void xprt_force_disconnect(struct rpc_xp
 
 	/* Don't race with the test_bit() in xprt_clear_locked() */
 	spin_lock(&xprt->transport_lock);
-	set_bit(XPRT_CLOSE_WAIT, &xprt->state);
-	/* Try to schedule an autoclose RPC call */
-	if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
-		queue_work(xprtiod_workqueue, &xprt->task_cleanup);
-	else if (xprt->snd_task && !test_bit(XPRT_SND_IS_COOKIE, &xprt->state))
-		rpc_wake_up_queued_task_set_status(&xprt->pending,
-						   xprt->snd_task, -ENOTCONN);
+	xprt_schedule_autoclose_locked(xprt);
 	spin_unlock(&xprt->transport_lock);
 }
 EXPORT_SYMBOL_GPL(xprt_force_disconnect);
@@ -788,11 +796,7 @@ void xprt_conditional_disconnect(struct
 		goto out;
 	if (test_bit(XPRT_CLOSING, &xprt->state))
 		goto out;
-	set_bit(XPRT_CLOSE_WAIT, &xprt->state);
-	/* Try to schedule an autoclose RPC call */
-	if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
-		queue_work(xprtiod_workqueue, &xprt->task_cleanup);
-	xprt_wake_pending_tasks(xprt, -EAGAIN);
+	xprt_schedule_autoclose_locked(xprt);
 out:
 	spin_unlock(&xprt->transport_lock);
 }