On 07/28/19 01:55, Eiichi Tsukata wrote:
> Since commit 02bc7768fe44 ("x86/asm/entry/64: Migrate error and IRQ exit
> work to C and remove old assembly code"), it's no longer used.It seems to me that powerpc and sparc are still using it? $ git grep SCHEDULE_USER arch/powerpc/include/asm/context_tracking.h:#define SCHEDULE_USER bl schedule_user arch/powerpc/include/asm/context_tracking.h:#define SCHEDULE_USER bl schedule arch/powerpc/kernel/entry_64.S: SCHEDULE_USER arch/sparc/kernel/rtrap_64.S:# define SCHEDULE_USER schedule_user arch/sparc/kernel/rtrap_64.S:# define SCHEDULE_USER schedule arch/sparc/kernel/rtrap_64.S: call SCHEDULE_USER Cheers -- Qais Yousef > > Signed-off-by: Eiichi Tsukata <[email protected]> > --- > kernel/sched/core.c | 19 ------------------- > 1 file changed, 19 deletions(-) > > diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index 2b037f195473..0079bebe0086 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -3973,25 +3973,6 @@ void __sched schedule_idle(void) > } while (need_resched()); > } > > -#ifdef CONFIG_CONTEXT_TRACKING > -asmlinkage __visible void __sched schedule_user(void) > -{ > - /* > - * If we come here after a random call to set_need_resched(), > - * or we have been woken up remotely but the IPI has not yet arrived, > - * we haven't yet exited the RCU idle mode. Do it here manually until > - * we find a better solution. > - * > - * NB: There are buggy callers of this function. Ideally we > - * should warn if prev_state != CONTEXT_USER, but that will trigger > - * too frequently to make sense yet. > - */ > - enum ctx_state prev_state = exception_enter(); > - schedule(); > - exception_exit(prev_state); > -} > -#endif > - > /** > * schedule_preempt_disabled - called with preemption disabled > * > -- > 2.21.0 >
