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)
next prev 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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