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Date:   Fri,  8 Feb 2019 15:10:45 -0500
From:   "J. Bruce Fields" <bfields@...hat.com>
To:     linux-nfs@...r.kernel.org
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Trond Myklebust <trondmy@...merspace.com>,
        Jeff Layton <jlayton@...hat.com>,
        David Howells <dhowells@...hat.com>, Tejun Heo <tj@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Shaohua Li <shli@...com>, Oleg Nesterov <oleg@...hat.com>,
        "J. Bruce Fields" <bfields@...hat.com>
Subject: [PATCH 5/7] rpc: separate out body of svc_start_kthreads

From: "J. Bruce Fields" <bfields@...hat.com>

No change in behavior, just trivial refactoring.

Signed-off-by: J. Bruce Fields <bfields@...hat.com>
---
 net/sunrpc/svc.c | 62 +++++++++++++++++++++++++++++-------------------
 1 file changed, 37 insertions(+), 25 deletions(-)

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index e87ddb9f7feb..502e09a28f84 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -702,40 +702,52 @@ choose_victim(struct svc_serv *serv, struct svc_pool *pool, unsigned int *state)
 	return task;
 }
 
-/* create new threads */
 static int
-svc_start_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+svc_start_kthread(struct svc_serv *serv, struct svc_pool *pool,
+			unsigned int *state)
 {
 	struct svc_rqst	*rqstp;
 	struct task_struct *task;
 	struct svc_pool *chosen_pool;
-	unsigned int state = serv->sv_nrthreads-1;
 	int node;
 
-	do {
-		nrservs--;
-		chosen_pool = choose_pool(serv, pool, &state);
-
-		node = svc_pool_map_get_node(chosen_pool->sp_id);
-		rqstp = svc_prepare_thread(serv, chosen_pool, node);
-		if (IS_ERR(rqstp))
-			return PTR_ERR(rqstp);
-
-		__module_get(serv->sv_ops->svo_module);
-		task = kthread_create_on_node(serv->sv_ops->svo_function, rqstp,
-					      node, "%s", serv->sv_name);
-		if (IS_ERR(task)) {
-			module_put(serv->sv_ops->svo_module);
-			svc_exit_thread(rqstp);
-			return PTR_ERR(task);
-		}
+	chosen_pool = choose_pool(serv, pool, state);
 
-		rqstp->rq_task = task;
-		if (serv->sv_nrpools > 1)
-			svc_pool_map_set_cpumask(task, chosen_pool->sp_id);
+	node = svc_pool_map_get_node(chosen_pool->sp_id);
+	rqstp = svc_prepare_thread(serv, chosen_pool, node);
+	if (IS_ERR(rqstp))
+		return PTR_ERR(rqstp);
 
-		svc_sock_update_bufs(serv);
-		wake_up_process(task);
+	__module_get(serv->sv_ops->svo_module);
+	task = kthread_create_on_node(serv->sv_ops->svo_function, rqstp,
+				      node, "%s", serv->sv_name);
+	if (IS_ERR(task)) {
+		module_put(serv->sv_ops->svo_module);
+		svc_exit_thread(rqstp);
+		return PTR_ERR(task);
+	}
+
+	rqstp->rq_task = task;
+	if (serv->sv_nrpools > 1)
+		svc_pool_map_set_cpumask(task, chosen_pool->sp_id);
+
+	svc_sock_update_bufs(serv);
+	wake_up_process(task);
+	return 0;
+}
+
+/* create new threads */
+static int
+svc_start_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+{
+	unsigned int state = serv->sv_nrthreads-1;
+	int ret;
+
+	do {
+		nrservs--;
+		ret = svc_start_kthread(serv, pool, &state);
+		if (ret)
+			return ret;
 	} while (nrservs > 0);
 
 	return 0;
-- 
2.20.1

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