hulk inclusion category:feature bugzilla:https://gitee.com/openeuler/kernel/issues/IC8KS8 CVE: NA -------------------------------- Program mem_sampling for access profiling for threads from the task sched switch path. mem_sampling is programmed with a period that corresponds to the incoming thread. Kernel threads are excluded from this. Signed-off-by: Ze Zuo <zuoze1@huawei.com> Signed-off-by: Tong Tiangen <tongtiangen@huawei.com> Signed-off-by: Shuang Yan <yanshuang7@huawei.com> --- kernel/sched/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7dc4ceebd5ec..7c40690ad56f 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -64,6 +64,7 @@ #include <linux/vtime.h> #include <linux/wait_api.h> #include <linux/workqueue_api.h> +#include <linux/mem_sampling.h> #ifdef CONFIG_PREEMPT_DYNAMIC # ifdef CONFIG_GENERIC_ENTRY @@ -5307,6 +5308,7 @@ static struct rq *finish_task_switch(struct task_struct *prev) prev_state = READ_ONCE(prev->__state); vtime_task_switch(prev); perf_event_task_sched_in(prev, current); + mem_sampling_sched_in(prev, current); finish_task(prev); tick_nohz_task_switch(); finish_lock_switch(rq); -- 2.25.1