dm: optimize dm_mq_queue_rq to _not_ use kthread if using pure blk-mq

[karo-tx-linux.git] / kernel / hung_task.c

diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 06bb1417b063fe52e287554f6c343b95cb239b55..06db12434d727c65c48cb96126a1be77992e15c0 100644 (file)
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -52,8 +52,10 @@ unsigned int __read_mostly sysctl_hung_task_panic =
 
 static int __init hung_task_panic_setup(char *str)
 {
-       sysctl_hung_task_panic = simple_strtoul(str, NULL, 0);
+       int rc = kstrtouint(str, 0, &sysctl_hung_task_panic);
 
+       if (rc)
+               return rc;
        return 1;
 }
 __setup("hung_task_panic=", hung_task_panic_setup);