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authorPaul E. McKenney <paulmck@kernel.org>2021-08-05 15:57:12 -0700
committerPaul E. McKenney <paulmck@kernel.org>2021-09-13 16:36:16 -0700
commited60ad733aa49b70720c9d8dded1b18374ec5022 (patch)
treec76113ef5f9fbea46ca3cbe609ba5a55162b64fb /kernel/rcu
parentb3b3cc618ee07f5f4c409e8ca86ac7fbac085ebd (diff)
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: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/refscale.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/rcu/refscale.c b/kernel/rcu/refscale.c
index 66dc14cf5687..1631ef8a138d 100644
--- a/kernel/rcu/refscale.c
+++ b/kernel/rcu/refscale.c
@@ -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();