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From: Peter Zijlstra <peterz@infradead.org>
To: tj@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@redhat.com, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
	vschneid@redhat.com, longman@redhat.com, hannes@cmpxchg.org,
	mkoutny@suse.com, void@manifault.com, arighi@nvidia.com,
	changwoo@igalia.com, cgroups@vger.kernel.org,
	sched-ext@lists.linux.dev, liuwenfang@honor.com,
	tglx@linutronix.de
Subject: [PATCH 02/14] sched: Re-arrange the {EN,DE}QUEUE flags
Date: Wed, 10 Sep 2025 17:44:11 +0200	[thread overview]
Message-ID: <20250910155808.536785976@infradead.org> (raw)
In-Reply-To: 20250910154409.446470175@infradead.org

Ensure the matched flags are in the low word while the unmatched flags
go into the second word.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 kernel/sched/sched.h |   45 ++++++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 21 deletions(-)

--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2337,27 +2337,30 @@ extern const u32		sched_prio_to_wmult[40
  *
  */
 
-#define DEQUEUE_SLEEP		0x01 /* Matches ENQUEUE_WAKEUP */
-#define DEQUEUE_SAVE		0x02 /* Matches ENQUEUE_RESTORE */
-#define DEQUEUE_MOVE		0x04 /* Matches ENQUEUE_MOVE */
-#define DEQUEUE_NOCLOCK		0x08 /* Matches ENQUEUE_NOCLOCK */
-#define DEQUEUE_SPECIAL		0x10
-#define DEQUEUE_MIGRATING	0x100 /* Matches ENQUEUE_MIGRATING */
-#define DEQUEUE_DELAYED		0x200 /* Matches ENQUEUE_DELAYED */
-#define DEQUEUE_THROTTLE	0x800
-
-#define ENQUEUE_WAKEUP		0x01
-#define ENQUEUE_RESTORE		0x02
-#define ENQUEUE_MOVE		0x04
-#define ENQUEUE_NOCLOCK		0x08
-
-#define ENQUEUE_HEAD		0x10
-#define ENQUEUE_REPLENISH	0x20
-#define ENQUEUE_MIGRATED	0x40
-#define ENQUEUE_INITIAL		0x80
-#define ENQUEUE_MIGRATING	0x100
-#define ENQUEUE_DELAYED		0x200
-#define ENQUEUE_RQ_SELECTED	0x400
+#define DEQUEUE_SLEEP		0x0001 /* Matches ENQUEUE_WAKEUP */
+#define DEQUEUE_SAVE		0x0002 /* Matches ENQUEUE_RESTORE */
+#define DEQUEUE_MOVE		0x0004 /* Matches ENQUEUE_MOVE */
+#define DEQUEUE_NOCLOCK		0x0008 /* Matches ENQUEUE_NOCLOCK */
+
+#define DEQUEUE_MIGRATING	0x0010 /* Matches ENQUEUE_MIGRATING */
+#define DEQUEUE_DELAYED		0x0020 /* Matches ENQUEUE_DELAYED */
+
+#define DEQUEUE_SPECIAL		0x00010000
+#define DEQUEUE_THROTTLE	0x00020000
+
+#define ENQUEUE_WAKEUP		0x0001
+#define ENQUEUE_RESTORE		0x0002
+#define ENQUEUE_MOVE		0x0004
+#define ENQUEUE_NOCLOCK		0x0008
+
+#define ENQUEUE_MIGRATING	0x0010
+#define ENQUEUE_DELAYED		0x0020
+
+#define ENQUEUE_HEAD		0x00010000
+#define ENQUEUE_REPLENISH	0x00020000
+#define ENQUEUE_MIGRATED	0x00040000
+#define ENQUEUE_INITIAL		0x00080000
+#define ENQUEUE_RQ_SELECTED	0x00100000
 
 #define RETRY_TASK		((void *)-1UL)
 



  parent reply	other threads:[~2025-09-10 16:00 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-10 15:44 [PATCH 00/14] sched: Support shared runqueue locking Peter Zijlstra
2025-09-10 15:44 ` [PATCH 01/14] sched: Employ sched_change guards Peter Zijlstra
2025-09-11  9:06   ` K Prateek Nayak
2025-09-11  9:55     ` Peter Zijlstra
2025-09-11 10:10       ` Peter Zijlstra
2025-09-11 10:37         ` K Prateek Nayak
2025-10-06 15:21   ` Shrikanth Hegde
2025-10-06 18:14     ` Peter Zijlstra
2025-10-07  5:12       ` Shrikanth Hegde
2025-10-07  9:34         ` Peter Zijlstra
2025-09-10 15:44 ` Peter Zijlstra [this message]
2025-09-10 15:44 ` [PATCH 03/14] sched: Fold sched_class::switch{ing,ed}_{to,from}() into the change pattern Peter Zijlstra
2025-09-10 15:44 ` [PATCH 04/14] sched: Cleanup sched_delayed handling for class switches Peter Zijlstra
2025-09-10 15:44 ` [PATCH 05/14] sched: Move sched_class::prio_changed() into the change pattern Peter Zijlstra
2025-09-11  1:44   ` Tejun Heo
2025-09-10 15:44 ` [PATCH 06/14] sched: Fix migrate_disable_switch() locking Peter Zijlstra
2025-09-10 15:44 ` [PATCH 07/14] sched: Fix do_set_cpus_allowed() locking Peter Zijlstra
2025-10-30  0:12   ` Mark Brown
2025-10-30  9:07     ` Peter Zijlstra
2025-10-30 12:47       ` Mark Brown
2025-09-10 15:44 ` [PATCH 08/14] sched: Rename do_set_cpus_allowed() Peter Zijlstra
2025-09-10 15:44 ` [PATCH 09/14] sched: Make __do_set_cpus_allowed() use the sched_change pattern Peter Zijlstra
2025-09-10 15:44 ` [PATCH 10/14] sched: Add locking comments to sched_class methods Peter Zijlstra
2025-09-10 15:44 ` [PATCH 11/14] sched: Add flags to {put_prev,set_next}_task() methods Peter Zijlstra
2025-09-10 15:44 ` [PATCH 12/14] sched: Add shared runqueue locking to __task_rq_lock() Peter Zijlstra
2025-09-12  0:19   ` Tejun Heo
2025-09-12 11:54     ` Peter Zijlstra
2025-09-12 14:11       ` Peter Zijlstra
2025-09-12 17:56       ` Tejun Heo
2025-09-15  8:38         ` Peter Zijlstra
2025-09-16 22:29           ` Tejun Heo
2025-09-16 22:41             ` Tejun Heo
2025-09-25  8:35               ` Peter Zijlstra
2025-09-25 21:43                 ` Tejun Heo
2025-09-26  9:59                   ` Peter Zijlstra
2025-09-26 16:48                     ` Tejun Heo
2025-09-26 10:36                   ` Peter Zijlstra
2025-09-26 21:39                     ` Tejun Heo
2025-09-29 10:06                       ` Peter Zijlstra
2025-09-30 23:49                         ` Tejun Heo
2025-10-01 11:54                           ` Peter Zijlstra
2025-10-02 23:32                             ` Tejun Heo
2025-09-10 15:44 ` [PATCH 13/14] sched: Add {DE,EN}QUEUE_LOCKED Peter Zijlstra
2025-09-11  2:01   ` Tejun Heo
2025-09-11  9:42     ` Peter Zijlstra
2025-09-11 20:40       ` Tejun Heo
2025-09-12 14:19         ` Peter Zijlstra
2025-09-12 16:32           ` Tejun Heo
2025-09-13 22:32             ` Tejun Heo
2025-09-15  8:48               ` Peter Zijlstra
2025-09-25 13:10             ` Peter Zijlstra
2025-09-25 15:40               ` Tejun Heo
2025-09-25 15:53                 ` Peter Zijlstra
2025-09-25 18:44                   ` Tejun Heo
2025-09-10 15:44 ` [PATCH 14/14] sched/ext: Implement p->srq_lock support Peter Zijlstra
2025-09-10 16:07   ` Peter Zijlstra
2025-09-10 17:32 ` [PATCH 00/14] sched: Support shared runqueue locking Andrea Righi
2025-09-10 18:19   ` Peter Zijlstra
2025-09-10 18:35   ` Peter Zijlstra
2025-09-10 19:00     ` Andrea Righi
2025-09-11  9:58     ` Peter Zijlstra
2025-09-11 14:51       ` Andrea Righi
2025-09-11 14:00   ` Peter Zijlstra
2025-09-11 14:30     ` Peter Zijlstra
2025-09-11 14:48       ` Andrea Righi
2025-09-18 15:15 ` Christian Loehle
2025-09-25  9:00   ` Peter Zijlstra

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