AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity
68b4378d91
kernel_optimize_test/kernel/sched
History
Mathieu Desnoyers 68b4378d91 sched/membarrier: fix missing local execution of ipi_sync_rq_state() 
commit ce29ddc47b91f97e7f69a0fb7cbb5845f52a9825 upstream.

The function sync_runqueues_membarrier_state() should copy the
membarrier state from the @mm received as parameter to each runqueue
currently running tasks using that mm.

However, the use of smp_call_function_many() skips the current runqueue,
which is unintended. Replace by a call to on_each_cpu_mask().

Fixes: 227a4aadc7 ("sched/membarrier: Fix p->mm->membarrier_state racy load")
Reported-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org # 5.4.x+
Link: https://lore.kernel.org/r/74F1E842-4A84-47BF-B6C2-5407DFDD4A4A@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:35 +01:00
..
autogroup.c
autogroup.h
clock.c
completion.c
core.c sched/features: Fix hrtick reprogramming 2021-03-07 12:34:13 +01:00
cpuacct.c
cpudeadline.c
cpudeadline.h
cpufreq_schedutil.c cpufreq: Introduce governor flags 2020-11-10 18:31:17 +01:00
cpufreq.c
cpupri.c
cpupri.h
cputime.c
deadline.c sched/deadline: Fix sched_dl_global_validate() 2020-12-30 11:52:59 +01:00
debug.c sched/debug: Fix memory corruption caused by multiple small reads of flags 2020-11-10 18:38:49 +01:00
fair.c sched/eas: Don't update misfit status if the task is pinned 2021-03-04 11:37:44 +01:00
features.h sched/rt: Disable RT_RUNTIME_SHARE by default 2020-09-25 14:23:24 +02:00
idle.c rcu/nocb: Perform deferred wake up before last idle's need_resched() check 2021-03-04 11:38:35 +01:00
isolation.c
loadavg.c
Makefile
membarrier.c sched/membarrier: fix missing local execution of ipi_sync_rq_state() 2021-03-17 17:06:35 +01:00
pelt.c
pelt.h
psi.c
rt.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
sched-pelt.h
sched.h sched/features: Fix hrtick reprogramming 2021-03-07 12:34:13 +01:00
smp.h
stats.c
stats.h
stop_task.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
swait.c
topology.c Scheduler changes for v5.10: 2020-10-12 12:56:01 -07:00
wait_bit.c
wait.c