On Tue, 7 Nov 2023 13:57:17 -0800 Ankur Arora <ankur.a.arora@xxxxxxxxxx> wrote: > Add a new flag, TIF_NEED_RESCHED_LAZY which with TIF_NEED_RESCHED > gives the scheduler two levels of rescheduling priority: > TIF_NEED_RESCHED means that rescheduling happens at the next > opportunity; TIF_NEED_RESCHED_LAZY is used to note that a > reschedule is needed but does not impose any other constraints > on the scheduler. Please add: Link: https://lore.kernel.org/lkml/87cyyfxd4k.ffs@tglx/ Link: https://lore.kernel.org/lkml/87jzshhexi.ffs@tglx/ For each of the patches that were based off of Thomas's patch. Thanks! -- Steve > > Originally-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Signed-off-by: Ankur Arora <ankur.a.arora@xxxxxxxxxx> > --- > arch/x86/include/asm/thread_info.h | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h > index d63b02940747..114d12120051 100644 > --- a/arch/x86/include/asm/thread_info.h > +++ b/arch/x86/include/asm/thread_info.h > @@ -81,8 +81,9 @@ struct thread_info { > #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ > #define TIF_SIGPENDING 2 /* signal pending */ > #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ > -#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/ > -#define TIF_SSBD 5 /* Speculative store bypass disable */ > +#define TIF_NEED_RESCHED_LAZY 4 /* Lazy rescheduling */ > +#define TIF_SINGLESTEP 5 /* reenable singlestep on user return*/ > +#define TIF_SSBD 6 /* Speculative store bypass disable */ > #define TIF_SPEC_IB 9 /* Indirect branch speculation mitigation */ > #define TIF_SPEC_L1D_FLUSH 10 /* Flush L1D on mm switches (processes) */ > #define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */ > @@ -104,6 +105,7 @@ struct thread_info { > #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) > #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) > #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) > +#define _TIF_NEED_RESCHED_LAZY (1 << TIF_NEED_RESCHED_LAZY) > #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) > #define _TIF_SSBD (1 << TIF_SSBD) > #define _TIF_SPEC_IB (1 << TIF_SPEC_IB)
