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

[Palmer Dabbelt]

On Wed, 09 Oct 2024 06:05:30 PDT (-0700), bigeasy@xxxxxxxxxxxxx wrote:
> 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).

Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>