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| author | Julia Cartwright <julia@ni.com> | 2019-02-12 17:25:53 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-02-28 11:18:38 +0100 |
| commit | fe99a4f4d6022ec92f9b52a5528cb9b77513e7d1 (patch) | |
| tree | 87e1bdb98c37e47aab67bf52170fe4a61ca3bde1 /kernel/groups.c | |
| parent | sched/fair: Use non-atomic cpumask_{set,clear}_cpu() (diff) | |
| download | linux-fe99a4f4d6022ec92f9b52a5528cb9b77513e7d1.tar.xz linux-fe99a4f4d6022ec92f9b52a5528cb9b77513e7d1.zip | |
kthread: Convert worker lock to raw spinlock
In order to enable the queuing of kthread work items from hardirq context
even when PREEMPT_RT_FULL is enabled, convert the worker spin_lock to a
raw_spin_lock.
This is only acceptable to do because the work performed under the lock is
well-bounded and minimal.
Reported-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reported-by: Tim Sander <tim@krieglstein.org>
Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20190212162554.19779-1-bigeasy@linutronix.de
Diffstat (limited to 'kernel/groups.c')
0 files changed, 0 insertions, 0 deletions