On Mon, May 10, 2021 at 02:05:13PM +0200, Peter Zijlstra wrote: > > 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) <peterz@xxxxxxxxxxxxx> > --- > Documentation/accounting/delay-accounting.rst | 6 ++-- > kernel/delayacct.c | 36 ++++++++++++++++++++++++-- > kernel/sysctl.c | 12 ++++++++ > 3 files changed, 50 insertions(+), 4 deletions(-) *sigh*, the below hunk went missing.. --- 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);
