blob: 2078fa5bb014f36bd76e1580de2fed31cf8f1575 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
From 1742897c78e053379ae6bb15024026f01e0bac2d Mon Sep 17 00:00:00 2001
From: Scott Wood <swood@redhat.com>
Date: Fri, 24 Jan 2020 06:11:47 -0500
Subject: [PATCH 317/347] sched: migrate_enable: Remove __schedule() call
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
[ Upstream commit b8162e61e9a33bd1de6452eb838fbf50a93ddd9a ]
We can rely on preempt_enable() to schedule. Besides simplifying the
code, this potentially allows sequences such as the following to be
permitted:
migrate_disable();
preempt_disable();
migrate_enable();
preempt_enable();
Suggested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Scott Wood <swood@redhat.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/sched/core.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 8b946353b1d7..410882ff2007 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7345,7 +7345,6 @@ void migrate_enable(void)
stop_one_cpu_nowait(task_cpu(p), migration_cpu_stop,
arg, work);
tlb_migrate_finish(p->mm);
- __schedule(true);
}
out:
--
2.36.1
|
