Qais Yousef 2c0000f409 sched/uclamp: Fix a deadlock when enabling uclamp static key ... [ Upstream commit e65855a52b ] The following splat was caught when setting uclamp value of a task: BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:49 cpus_read_lock+0x68/0x130 static_key_enable+0x1c/0x38 __sched_setscheduler+0x900/0xad8 Fix by ensuring we enable the key outside of the critical section in __sched_setscheduler() Fixes: 46609ce227 ("sched/uclamp: Protect uclamp fast path code with static key") Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200716110347.19553-4-qais.yousef@arm.com Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-09-03 11:26:49 +02:00
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Makefile	…
autogroup.c	…
autogroup.h	…
clock.c	…
completion.c	…
core.c	sched/uclamp: Fix a deadlock when enabling uclamp static key	2020-09-03 11:26:49 +02:00
cpuacct.c	…
cpudeadline.c	…
cpudeadline.h	…
cpufreq.c	…
cpufreq_schedutil.c	sched/uclamp: Protect uclamp fast path code with static key	2020-09-03 11:26:49 +02:00
cpupri.c	…
cpupri.h	…
cputime.c	…
deadline.c	sched/deadline: Initialize ->dl_boosted	2020-06-30 15:37:02 -04:00
debug.c	sched/debug: Make sd->flags sysctl read-only	2020-07-09 09:37:50 +02:00
fair.c	sched/fair: Fix NOHZ next idle balance	2020-08-19 08:15:53 +02:00
features.h	…
idle.c	…
isolation.c	…
loadavg.c	…
membarrier.c	…
pelt.c	…
pelt.h	…
psi.c	…
rt.c	sched: Defend cfs and rt bandwidth quota against overflow	2020-06-22 09:31:07 +02:00
sched-pelt.h	…
sched.h	sched/uclamp: Protect uclamp fast path code with static key	2020-09-03 11:26:49 +02:00
stats.c	…
stats.h	…
stop_task.c	…
swait.c	…
topology.c	sched: correct SD_flags returned by tl->sd_flags()	2020-08-19 08:15:54 +02:00
wait.c	…
wait_bit.c	…