Peter Zijlstra 3411613611 sched: Fix yet more sched_fork() races ... commit b1e8206582 upstream. Where commit 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an invalid sched_task_group") fixed a fork race vs cgroup, it opened up a race vs syscalls by not placing the task on the runqueue before it gets exposed through the pidhash. Commit 13765de814 ("sched/fair: Fix fault in reweight_entity") is trying to fix a single instance of this, instead fix the whole class of issues, effectively reverting this commit. Fixes: 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an invalid sched_task_group") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Tadeusz Struk <tadeusz.struk@linaro.org> Tested-by: Zhang Qiao <zhangqiao22@huawei.com> Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com> Link: https://lkml.kernel.org/r/YgoeCbwj5mbCR0qA@hirez.programming.kicks-ass.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-03-08 19:12:49 +01:00
..
autogroup.c	sched/fair: Prevent dead task groups from regaining cfs_rq's	2021-11-25 09:48:32 +01:00
autogroup.h
clock.c
completion.c
core_sched.c
core.c	sched: Fix yet more sched_fork() races	2022-03-08 19:12:49 +01:00
cpuacct.c	sched/cpuacct: Fix user/system in shown cpuacct.usage*	2022-01-27 11:05:09 +01:00
cpudeadline.c
cpudeadline.h
cpufreq_schedutil.c	cpufreq: schedutil: Use kobject release() method to free sugov_tunables	2021-08-06 15:34:55 +02:00
cpufreq.c
cpupri.c
cpupri.h
cputime.c	cputime, cpuacct: Include guest time in user time in cpuacct.stat	2022-01-27 11:05:09 +01:00
deadline.c	sched/deadline: Fix missing clock update in migrate_task_rq_dl()	2021-08-06 14:25:24 +02:00
debug.c	sched/fair: Null terminate buffer when updating tunable_scaling	2021-10-01 13:57:57 +02:00
fair.c	sched/pelt: Relax the sync of util_sum with util_avg	2022-02-01 17:27:10 +01:00
features.h
idle.c	sched/idle: Make the idle timer expire in hard interrupt context	2021-09-09 10:36:16 +02:00
isolation.c
loadavg.c
Makefile
membarrier.c	sched/membarrier: Fix membarrier-rseq fence command missing from query bitmask	2022-02-01 17:27:05 +01:00
pelt.c
pelt.h	sched/pelt: Relax the sync of util_sum with util_avg	2022-02-01 17:27:10 +01:00
psi.c	psi: fix "defined but not used" warnings when CONFIG_PROC_FS=n	2022-02-01 17:27:15 +01:00
rt.c	sched/rt: Try to restart rt period timer when rt runtime exceeded	2022-01-27 11:03:30 +01:00
sched-pelt.h
sched.h	sched/fair: Prevent dead task groups from regaining cfs_rq's	2021-11-25 09:48:32 +01:00
smp.h
stats.c
stats.h	psi: Fix PSI_MEM_FULL state when tasks are in memstall and doing reclaim	2022-01-27 11:04:27 +01:00
stop_task.c
swait.c
topology.c	sched/topology: Skip updating masks for non-online nodes	2021-08-20 12:32:57 +02:00
wait_bit.c
wait.c	wait: add wake_up_pollfree()	2021-12-14 10:57:15 +01:00