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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	Gabriele Monaco <gmonaco@redhat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Michael Jeanson <mjeanson@efficios.com>,
	Jens Axboe <axboe@kernel.dk>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	"Gautham R. Shenoy" <gautham.shenoy@amd.com>,
	Florian Weimer <fweimer@redhat.com>,
	Tim Chen <tim.c.chen@intel.com>,
	TCMalloc Team <tcmalloc-eng@google.com>
Subject: [patch 11/19] sched/mmcid: Move initialization out of line
Date: Wed, 15 Oct 2025 19:29:44 +0200 (CEST)	[thread overview]
Message-ID: <20251015172835.007019151@linutronix.de> (raw)
In-Reply-To: <20251015164952.694882104@linutronix.de>

It's getting bigger soon, so just move it out of line to the rest of the
code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/mm_types.h |   15 +--------------
 kernel/sched/core.c      |   14 ++++++++++++++
 2 files changed, 15 insertions(+), 14 deletions(-)

--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1305,20 +1305,7 @@ static inline unsigned long *mm_cidmask(
 	return (unsigned long *)cid_bitmap;
 }
 
-static inline void mm_init_cid(struct mm_struct *mm, struct task_struct *p)
-{
-	int i;
-
-	for_each_possible_cpu(i) {
-		struct mm_cid_pcpu *pcpu = per_cpu_ptr(mm->mm_cid.pcpu, i);
-
-		pcpu->cid = MM_CID_UNSET;
-	}
-	mm->mm_cid.nr_cpus_allowed = p->nr_cpus_allowed;
-	raw_spin_lock_init(&mm->mm_cid.lock);
-	cpumask_copy(mm_cpus_allowed(mm), &p->cpus_mask);
-	bitmap_zero(mm_cidmask(mm), nr_cpu_ids);
-}
+void mm_init_cid(struct mm_struct *mm, struct task_struct *p);
 
 static inline int mm_alloc_cid_noprof(struct mm_struct *mm, struct task_struct *p)
 {
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10466,6 +10466,20 @@ void sched_mm_cid_fork(struct task_struc
 	WARN_ON_ONCE(!t->mm || t->mm_cid.cid != MM_CID_UNSET);
 	t->mm_cid.active = 1;
 }
+
+void mm_init_cid(struct mm_struct *mm, struct task_struct *p)
+{
+	struct mm_cid_pcpu __percpu *pcpu = mm->mm_cid.pcpu;
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		per_cpu_ptr(pcpu, cpu)->cid = MM_CID_UNSET;
+
+	mm->mm_cid.nr_cpus_allowed = p->nr_cpus_allowed;
+	raw_spin_lock_init(&mm->mm_cid.lock);
+	cpumask_copy(mm_cpus_allowed(mm), &p->cpus_mask);
+	bitmap_zero(mm_cidmask(mm), nr_cpu_ids);
+}
 #else /* CONFIG_SCHED_MM_CID */
 static inline void mm_update_cpus_allowed(struct mm_struct *mm, const struct cpumask *affmsk) { }
 #endif /* !CONFIG_SCHED_MM_CID */


  parent reply	other threads:[~2025-10-15 17:29 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-15 17:29 [patch 00/19] sched: Rewrite MM CID management Thomas Gleixner
2025-10-15 17:29 ` [patch 01/19] sched/mmcid: Revert the complex " Thomas Gleixner
2025-10-15 17:29 ` [patch 02/19] sched/mmcid: Use proper data structures Thomas Gleixner
2025-10-15 17:29 ` [patch 03/19] sched/mmcid: Cacheline align MM CID storage Thomas Gleixner
2025-10-15 17:29 ` [patch 04/19] sched: Fixup whitespace damage Thomas Gleixner
2025-10-15 17:29 ` [patch 05/19] sched/mmcid: Move scheduler code out of global header Thomas Gleixner
2025-10-15 17:29 ` [patch 06/19] sched/mmcid: Prevent pointless work in mm_update_cpus_allowed() Thomas Gleixner
2025-10-17 11:12   ` Peter Zijlstra
2025-10-17 12:49     ` Thomas Gleixner
2025-10-17 17:58       ` Peter Zijlstra
2025-10-17 18:19         ` Peter Zijlstra
2025-10-19 20:32           ` Thomas Gleixner
2025-10-20  8:22             ` Peter Zijlstra
2025-10-21 18:25               ` Thomas Gleixner
2025-10-15 17:29 ` [patch 07/19] cpumask: Introduce cpumask_or_weight() Thomas Gleixner
2025-10-15 17:41   ` Yury Norov
2025-10-15 18:06     ` Yury Norov
2025-10-21 20:21       ` Thomas Gleixner
2025-10-21 19:34     ` Thomas Gleixner
2025-10-15 17:29 ` [patch 08/19] sched/mmcid: Use cpumask_or_weight() Thomas Gleixner
2025-10-15 17:29 ` [patch 09/19] sched/mmcid: Convert mm CID mask to a bitmap Thomas Gleixner
2025-10-15 17:29 ` [patch 10/19] signal: Move MMCID exit out of sighand lock Thomas Gleixner
2025-10-15 17:29 ` Thomas Gleixner [this message]
2025-10-15 17:29 ` [patch 12/19] sched/mmcid: Provide precomputed maximal value Thomas Gleixner
2025-10-15 17:29 ` [patch 13/19] sched/mmcid: Serialize sched_mm_cid_fork()/exit() with a mutex Thomas Gleixner
2025-10-15 17:29 ` [patch 14/19] sched/mmcid: Introduce per task/CPU ownership infrastrcuture Thomas Gleixner
2025-10-15 17:29 ` [patch 15/19] sched/mmcid: Provide new scheduler CID mechanism Thomas Gleixner
2025-10-15 17:29 ` [patch 16/19] sched/mmcid: Provide CID ownership mode fixup functions Thomas Gleixner
2025-10-20  6:34   ` Thomas Gleixner
2025-10-20  9:13   ` Peter Zijlstra
2025-10-20  9:16   ` Peter Zijlstra
2025-10-20  9:27   ` Peter Zijlstra
2025-10-21 18:27     ` Thomas Gleixner
2025-10-15 17:29 ` [patch 17/19] irqwork: Move data struct to a types header Thomas Gleixner
2025-10-15 17:29 ` [patch 18/19] sched/mmcid: Implement deferred mode change Thomas Gleixner
2025-10-15 17:30 ` [patch 19/19] sched/mmcid: Switch over to the new mechanism Thomas Gleixner
2025-10-17  7:09 ` [patch 00/19] sched: Rewrite MM CID management Thomas Gleixner
2025-10-17 11:31 ` Florian Weimer
2025-10-17 12:56   ` Thomas Gleixner

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