From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@redhat.com, peterz@infradead.org,
vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
Juri Lelli <juri.lelli@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [RFC PATCH 1/7] sched: Add WF_TTWU, WF_EXEC wakeup flags
Date: Wed, 11 Dec 2019 16:43:55 +0000 [thread overview]
Message-ID: <20191211164401.5013-2-valentin.schneider@arm.com> (raw)
In-Reply-To: <20191211164401.5013-1-valentin.schneider@arm.com>
To remove the sd_flag parameter of select_task_rq(), we need another way of
encoding wakeup kinds. There already is a WF_FORK flag, add the missing
ones.
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
---
kernel/sched/sched.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 280a3c735935..1936ab2faff0 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1639,11 +1639,13 @@ static inline int task_on_rq_migrating(struct task_struct *p)
}
/*
- * wake flags
+ * Wake flags
*/
#define WF_SYNC 0x01 /* Waker goes to sleep after wakeup */
-#define WF_FORK 0x02 /* Child wakeup after fork */
-#define WF_MIGRATED 0x4 /* Internal use, task got migrated */
+#define WF_TTWU 0x02 /* Regular task wakeup */
+#define WF_FORK 0x04 /* Child wakeup after fork */
+#define WF_EXEC 0x08 /* "Fake" wakeup at exec */
+#define WF_MIGRATED 0x10 /* Internal use, task got migrated */
/*
* To aid in avoiding the subversion of "niceness" due to uneven distribution
--
2.24.0
next prev parent reply other threads:[~2019-12-11 16:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 16:43 [RFC PATCH 0/7] sched: Streamline select_task_rq() & select_task_rq_fair() Valentin Schneider
2019-12-11 16:43 ` Valentin Schneider [this message]
2019-12-11 16:43 ` [RFC PATCH 2/7] sched: Kill select_task_rq()'s sd_flag parameter Valentin Schneider
2019-12-11 16:43 ` [RFC PATCH 3/7] sched/fair: find_idlest_group(): Remove unused " Valentin Schneider
2019-12-11 16:43 ` [RFC PATCH 4/7] sched/fair: Dissociate wakeup decisions from SD flag value Valentin Schneider
2019-12-11 16:53 ` Valentin Schneider
2019-12-11 16:43 ` [RFC PATCH 5/7] sched/topology: Make {lowest/highest}_flag_domain() work with > 1 flags Valentin Schneider
2019-12-11 16:44 ` [RFC PATCH 6/7] sched/fair: Split select_task_rq_fair want_affine logic Valentin Schneider
2019-12-11 16:44 ` [RFC PATCH 7/7] sched/topology: Define and use shortcut pointers for wakeup sd_flag scan Valentin Schneider
2020-01-06 8:10 ` [RFC PATCH 0/7] sched: Streamline select_task_rq() & select_task_rq_fair() Peter Zijlstra
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