SUNRPC: discard svo_setup and rename svc_set_num_threads_sync()

The ->svo_setup callback serves no purpose.  It is always called from
within the same module that chooses which callback is needed.  So
discard it and call the relevant function directly.

Now that svc_set_num_threads() is no longer used remove it and rename
svc_set_num_threads_sync() to remove the "_sync" suffix.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

1 files changed, 2 insertions, 47 deletions

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 2b2042234e4b..5513f8c9a8d6 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -743,58 +743,13 @@ svc_start_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
 	return 0;
 }
 
-
-/* destroy old threads */
-static int
-svc_signal_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
-{
-	struct task_struct *task;
-	unsigned int state = serv->sv_nrthreads-1;
-
-	/* destroy old threads */
-	do {
-		task = choose_victim(serv, pool, &state);
-		if (task == NULL)
-			break;
-		send_sig(SIGINT, task, 1);
-		nrservs++;
-	} while (nrservs < 0);
-
-	return 0;
-}
-
 /*
  * Create or destroy enough new threads to make the number
  * of threads the given number.  If `pool' is non-NULL, applies
  * only to threads in that pool, otherwise round-robins between
  * all pools.  Caller must ensure that mutual exclusion between this and
  * server startup or shutdown.
- *
- * Destroying threads relies on the service threads filling in
- * rqstp->rq_task, which only the nfs ones do.  Assumes the serv
- * has been created using svc_create_pooled().
- *
- * Based on code that used to be in nfsd_svc() but tweaked
- * to be pool-aware.
  */
-int
-svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
-{
-	if (pool == NULL) {
-		nrservs -= serv->sv_nrthreads;
-	} else {
-		spin_lock_bh(&pool->sp_lock);
-		nrservs -= pool->sp_nrthreads;
-		spin_unlock_bh(&pool->sp_lock);
-	}
-
-	if (nrservs > 0)
-		return svc_start_kthreads(serv, pool, nrservs);
-	if (nrservs < 0)
-		return svc_signal_kthreads(serv, pool, nrservs);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(svc_set_num_threads);
 
 /* destroy old threads */
 static int
@@ -815,7 +770,7 @@ svc_stop_kthreads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
 }
 
 int
-svc_set_num_threads_sync(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
+svc_set_num_threads(struct svc_serv *serv, struct svc_pool *pool, int nrservs)
 {
 	if (pool == NULL) {
 		nrservs -= serv->sv_nrthreads;
@@ -831,7 +786,7 @@ svc_set_num_threads_sync(struct svc_serv *serv, struct svc_pool *pool, int nrser
 		return svc_stop_kthreads(serv, pool, nrservs);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(svc_set_num_threads_sync);
+EXPORT_SYMBOL_GPL(svc_set_num_threads);
 
 /**
  * svc_rqst_replace_page - Replace one page in rq_pages[]