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From: Peter Zijlstra <peterz@infradead.org>
To: tj@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@kernel.org, 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 02/12] sched: Re-arrange the {EN,DE}QUEUE flags
Date: Mon, 06 Oct 2025 12:44:04 +0200	[thread overview]
Message-ID: <20251006104526.729048003@infradead.org> (raw)
In-Reply-To: 20251006104402.946760805@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>
Acked-by: Tejun Heo <tj@kernel.org>
---
 kernel/sched/sched.h |   45 ++++++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 21 deletions(-)

--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2362,27 +2362,30 @@ 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:[~2025-10-06 10:45 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-06 10:44 [PATCH 00/12] sched: Cleanup the change-pattern and related locking Peter Zijlstra
2025-10-06 10:44 ` [PATCH 01/12] sched: Employ sched_change guards Peter Zijlstra
2025-10-07  8:20   ` Andrea Righi
2025-10-08  6:51     ` Peter Zijlstra
2025-10-08  6:58       ` Andrea Righi
2025-10-07 16:58   ` Valentin Schneider
2025-10-08 14:02     ` Peter Zijlstra
2025-10-06 10:44 ` Peter Zijlstra [this message]
2025-10-06 10:44 ` [PATCH 03/12] sched: Fold sched_class::switch{ing,ed}_{to,from}() into the change pattern Peter Zijlstra
2025-10-09 13:30   ` Dietmar Eggemann
2025-10-09 13:54     ` Peter Zijlstra
2025-10-09 14:09       ` Peter Zijlstra
2025-10-09 16:50         ` Dietmar Eggemann
2025-10-13 10:23           ` Peter Zijlstra
2025-10-06 10:44 ` [PATCH 04/12] sched: Cleanup sched_delayed handling for class switches Peter Zijlstra
2025-10-07 15:22   ` Vincent Guittot
2025-10-06 10:44 ` [PATCH 05/12] sched: Move sched_class::prio_changed() into the change pattern Peter Zijlstra
2026-01-12 20:44   ` Pierre Gondois
2026-01-13  4:12     ` K Prateek Nayak
2026-01-13 10:45       ` Pierre Gondois
2026-01-13 11:05         ` K Prateek Nayak
2026-01-13 11:53           ` Peter Zijlstra
2026-01-13 11:56             ` Peter Zijlstra
2026-01-13 13:07               ` Pierre Gondois
2026-01-13 13:10               ` Pierre Gondois
2026-01-13 11:47         ` Peter Zijlstra
2026-01-14  6:47           ` K Prateek Nayak
2026-01-14 10:23             ` Peter Zijlstra
2026-01-14 13:05               ` Peter Zijlstra
2026-01-14 14:04                 ` luca abeni
2026-01-14 14:20                 ` Juri Lelli
2026-01-14 15:25                   ` luca abeni
2026-01-15  8:24                   ` Peter Zijlstra
2026-01-15  9:05                     ` Peter Zijlstra
2026-01-15 13:13                       ` Pierre Gondois
2026-01-15 13:56                         ` Juri Lelli
2025-10-06 10:44 ` [PATCH 06/12] sched: Fix migrate_disable_switch() locking Peter Zijlstra
2025-10-06 10:44 ` [PATCH 07/12] sched: Fix do_set_cpus_allowed() locking Peter Zijlstra
2025-10-24 14:58   ` [REGRESSION] Deadlock during CPU hotplug caused by abfc01077df6 Jan Polensky
2025-10-06 10:44 ` [PATCH 08/12] sched: Rename do_set_cpus_allowed() Peter Zijlstra
2025-10-06 10:44 ` [PATCH 09/12] sched: Make __do_set_cpus_allowed() use the sched_change pattern Peter Zijlstra
2025-10-06 10:44 ` [PATCH 10/12] sched: Add locking comments to sched_class methods Peter Zijlstra
2025-10-07  9:54   ` Juri Lelli
2025-10-08  7:04     ` Peter Zijlstra
2025-10-08  7:33       ` Greg Kroah-Hartman
2025-10-08  9:43         ` Juri Lelli
2025-10-08 10:06           ` Greg Kroah-Hartman
2025-10-08 14:34             ` Steven Rostedt
2025-10-06 10:44 ` [PATCH 11/12] sched: Match __task_rq_{,un}lock() Peter Zijlstra
2025-10-07 20:44   ` Tejun Heo
2025-10-06 10:44 ` [PATCH 12/12] sched: Cleanup the sched_change NOCLOCK usage Peter Zijlstra
2025-10-07  8:25 ` [PATCH 00/12] sched: Cleanup the change-pattern and related locking Andrea Righi
2025-10-07  9:55 ` Juri Lelli
2025-10-07 15:23 ` Vincent Guittot
2025-10-07 20:46 ` Tejun Heo
2025-10-08 13:54 ` Valentin Schneider

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