From 0cd7c741f01de13dc1eecf22557593b3514639bb Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 10 May 2021 14:01:00 +0200 Subject: delayacct: Add sysctl to enable at runtime Just like sched_schedstats, allow runtime enabling (and disabling) of delayacct. This is useful if one forgot to add the delayacct boot time option. Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/YJkhebGJAywaZowX@hirez.programming.kicks-ass.net --- include/linux/delayacct.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/delayacct.h') diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h index 225c8e01a111..af7e6eb50283 100644 --- a/include/linux/delayacct.h +++ b/include/linux/delayacct.h @@ -65,6 +65,10 @@ DECLARE_STATIC_KEY_FALSE(delayacct_key); extern int delayacct_on; /* Delay accounting turned on/off */ extern struct kmem_cache *delayacct_cache; extern void delayacct_init(void); + +extern int sysctl_delayacct(struct ctl_table *table, int write, void *buffer, + size_t *lenp, loff_t *ppos); + extern void __delayacct_tsk_init(struct task_struct *); extern void __delayacct_tsk_exit(struct task_struct *); extern void __delayacct_blkio_start(void); -- cgit v1.2.3