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	psi: pressure stall information for CPU, memory, and IO	2018-10-26 16:26:32 -07:00
autogroup.c	sched/autogroup: Make autogroup_path() always available	2019-06-24 19:23:40 +02:00
autogroup.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
clock.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
completion.c	sched/Documentation: Update wake_up() & co. memory-barrier guarantees	2018-07-17 09:30:34 +02:00
core.c	sched/uclamp: Fix a deadlock when enabling uclamp static key	2020-09-03 11:26:49 +02:00
cpuacct.c	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpudeadline.c	Linux 5.2-rc5	2019-06-17 12:12:27 +02:00
cpudeadline.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cpufreq.c	cpufreq: Avoid leaving stale IRQ work items during CPU offline	2019-12-31 16:46:06 +01:00
cpufreq_schedutil.c	sched/uclamp: Protect uclamp fast path code with static key	2020-09-03 11:26:49 +02:00
cpupri.c	Linux 5.2-rc5	2019-06-17 12:12:27 +02:00
cpupri.h	sched/headers: Simplify and clean up header usage in the scheduler	2018-03-04 12:39:29 +01:00
cputime.c	sched/vtime: Fix guest/system mis-accounting on task switch	2019-10-09 12:38:03 +02:00
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	sched/fair: Replace source_load() & target_load() with weighted_cpuload()	2019-06-03 11:49:39 +02:00
idle.c	sched/core: Further clarify sched_class::set_next_task()	2020-01-26 10:01:03 +01:00
isolation.c	sched/isolation: Prefer housekeeping CPU in local node	2019-07-25 15:51:55 +02:00
loadavg.c	timers/nohz: Update NOHZ load in remote tick	2020-03-05 16:43:36 +01:00
membarrier.c	membarrier: Fix RCU locking bug caused by faulty merge	2019-10-01 21:27:50 +02:00
pelt.c	sched/debug: Add new tracepoint to track PELT at se level	2019-06-24 19:23:42 +02:00
pelt.h	sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity()	2019-06-24 19:23:39 +02:00
psi.c	sched/psi: Fix OOB write when writing 0 bytes to PSI files	2020-02-28 17:22:21 +01:00
rt.c	sched: Defend cfs and rt bandwidth quota against overflow	2020-06-22 09:31:07 +02:00
sched-pelt.h	sched/fair: Fix "runnable_avg_yN_inv" not used warnings	2019-06-17 12:15:58 +02:00
sched.h	sched/uclamp: Protect uclamp fast path code with static key	2020-09-03 11:26:49 +02:00
stats.c	proc: introduce proc_create_seq{,_data}	2018-05-16 07:23:35 +02:00
stats.h	sched/stats: Fix unlikely() use of sched_info_on()	2019-07-25 15:51:55 +02:00
stop_task.c	sched/core: Further clarify sched_class::set_next_task()	2020-01-26 10:01:03 +01:00
swait.c	kernel/sched/: remove caller signal_pending branch predictions	2019-01-04 13:13:48 -08:00
topology.c	sched: correct SD_flags returned by tl->sd_flags()	2020-08-19 08:15:54 +02:00
wait.c	sched/wait: Deduplicate code with do-while	2019-06-24 19:23:40 +02:00
wait_bit.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00