Re: [PATCH 3/3] riscv: add PREEMPT_LAZY support

[Sebastian Andrzej Siewior]

On 2024-10-09 15:03:07 [+0200], Peter Zijlstra wrote:
> > diff --git a/arch/riscv/include/asm/thread_info.h b/arch/riscv/include/asm/thread_info.h
> > index 9c10fb180f438..8b5a5ddea4293 100644
> > --- a/arch/riscv/include/asm/thread_info.h
> > +++ b/arch/riscv/include/asm/thread_info.h
> > @@ -107,6 +107,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
> >   * - pending work-to-be-done flags are in lowest half-word
> >   * - other flags in upper half-word(s)
> >   */
> > +#define TIF_NEED_RESCHED_LAZY	0       /* Lazy rescheduling needed */
> >  #define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
> >  #define TIF_SIGPENDING		2	/* signal pending */
> >  #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
> 
> So for x86 I shuffled the flags around to have the two NEED_RESCHED ones
> side-by-side. Not strictly required ofcourse, but...

I can shuffle them. I don't think the riscv camp will complain (saying
this for them to actual complain if so).

Sebastian