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x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: t9ytw5zdozyt3khmszxwio1zrg7pu6gg X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 904A7180006 X-HE-Tag: 1699399602-359611 X-HE-Meta: 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 KrgoK6T6 Y0VxcxyfgD4Dmwe0/Ps9FSN8bxVt2+2rDDRlSHRTyxA9SAGEirDD8xQYdVx+UZFbiK3QjQ+nfY5OxpunNY18YgJClDjB+Wcv9cdafs84QwI9U4XAeyprhuiKNvXNqlH9m25hXmQWm/IbR/11ZhNlGCwaaHAe0l7z0HzbsoopgXZMbofJofcKOvGZb9KTi+g8EfeQItICmhZoxTd+D1f+pppq8JVx016MLu9F2bZ6504AiUbASDvQVl3w4LX9P2JBa11ZwZNmtBlr/2ahidvFazusM9f8EmL6SQ2JSkzgg35j3MzUunibWmqJxiGWS0IRJv5HkYve2kJMnu5NO4RCG5AumJ8x6P08TQ6rSeDP5SqX8X9OOAHkzBgoEE03GPDKPBxIJ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, 7 Nov 2023 13:57:17 -0800 Ankur Arora 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 > Signed-off-by: Ankur Arora > --- > 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)