Commit ed60ad73 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

refscale: Warn on individual ref_scale_init() error conditions 



When running refscale as a module, any ref_scale_init() issues will be
reflected in the error code from modprobe or insmod, as the case may be.
However, these error codes are not available when running refscale
built-in, for example, when using the kvm.sh script.  This commit
therefore adds WARN_ON_ONCE() to allow distinguishing ref_scale_init()
errors when running refscale built-in.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent b3b3cc61

kernel/rcu/refscale.c

+3 −3
Original line number Diff line number Diff line
@@ -824,7 +824,7 @@ ref_scale_init(void) 
		init_waitqueue_head(&shutdown_wq);

		firsterr = torture_create_kthread(ref_scale_shutdown, NULL,

						  shutdown_task);

		if (firsterr)

		if (torture_init_error(firsterr))

			goto unwind;

		schedule_timeout_uninterruptible(1);

	}
@@ -851,7 +851,7 @@ ref_scale_init(void) 
	for (i = 0; i < nreaders; i++) {

		firsterr = torture_create_kthread(ref_scale_reader, (void *)i,

						  reader_tasks[i].task);

		if (firsterr)

		if (torture_init_error(firsterr))

			goto unwind;



		init_waitqueue_head(&(reader_tasks[i].wq));
@@ -860,7 +860,7 @@ ref_scale_init(void) 
	// Main Task

	init_waitqueue_head(&main_wq);

	firsterr = torture_create_kthread(main_func, NULL, main_task);

	if (firsterr)

	if (torture_init_error(firsterr))

		goto unwind;



	torture_init_end();