Displaying 1 result from an estimated 1 matches for "klp_try_switch_task_harder".
2023 Jan 27
1
[PATCH 0/2] vhost: improve livepatch switching for heavily loaded vhost worker kthreads
...nclude "core.h"
#include "patch.h"
#include "transition.h"
@@ -334,6 +335,16 @@ static bool klp_try_switch_task(struct task_struct *task)
return !ret;
}
+static int __stop_try_switch(void *arg)
+{
+ return klp_try_switch_task(arg) ? 0 : -EBUSY;
+}
+
+static bool klp_try_switch_task_harder(struct task_struct *task)
+{
+ return !stop_one_cpu(task_cpu(task), __stop_try_switch, task);
+}
+
/*
* Sends a fake signal to all non-kthread tasks with TIF_PATCH_PENDING set.
* Kthreads with TIF_PATCH_PENDING set are woken up.