android_kernel_motorola_sm6375/kernel/sched
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Qais Yousef 047187eb0a sched/uclamp: Fix initialization of struct uclamp_rq
[ Upstream commit d81ae8aac85ca2e307d273f6dc7863a721bf054e ]

struct uclamp_rq was zeroed out entirely in assumption that in the first
call to uclamp_rq_inc() they'd be initialized correctly in accordance to
default settings.

But when next patch introduces a static key to skip
uclamp_rq_{inc,dec}() until userspace opts in to use uclamp, schedutil
will fail to perform any frequency changes because the
rq->uclamp[UCLAMP_MAX].value is zeroed at init and stays as such. Which
means all rqs are capped to 0 by default.

Fix it by making sure we do proper initialization at init without
relying on uclamp_rq_inc() doing it later.

Fixes: 69842cba9a ("sched/uclamp: Add CPU's clamp buckets refcounting")
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lkml.kernel.org/r/20200630112123.12076-2-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-19 08:15:55 +02:00
..
autogroup.c
autogroup.h
clock.c
completion.c
core.c sched/uclamp: Fix initialization of struct uclamp_rq 2020-08-19 08:15:55 +02:00
cpuacct.c
cpudeadline.c
cpudeadline.h
cpufreq.c
cpufreq_schedutil.c
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 timers/nohz: Update NOHZ load in remote tick 2020-03-05 16:43:36 +01:00
Makefile
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: Defend cfs and rt bandwidth quota against overflow 2020-06-22 09:31:07 +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