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linux/kernel/sched
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Mathieu Desnoyers 907f7f2cf0 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: 227a4aadc75b ("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 17:03:57 +01:00
..
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/features: Fix hrtick reprogramming
2021-03-07 12:20:47 +01:00
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_schedutil.c
sched/uclamp: Protect uclamp fast path code with static key
2020-09-03 11:26:49 +02:00
cpufreq.c
cpufreq: Avoid leaving stale IRQ work items during CPU offline
2019-12-31 16:46:06 +01:00
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: Fix sched_dl_global_validate()
2020-12-30 11:51:03 +01:00
debug.c
sched/debug: Make sd->flags sysctl read-only
2020-07-09 09:37:50 +02:00
fair.c
sched/eas: Don't update misfit status if the task is pinned
2021-03-04 10:26:23 +01:00
features.h
sched/fair: Replace source_load() & target_load() with weighted_cpuload()
2019-06-03 11:49:39 +02:00
idle.c
rcu/nocb: Perform deferred wake up before last idle's need_resched() check
2021-03-04 10:26:47 +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
Makefile
psi: pressure stall information for CPU, memory, and IO
2018-10-26 16:26:32 -07:00
membarrier.c
sched/membarrier: fix missing local execution of ipi_sync_rq_state()
2021-03-17 17:03:57 +01:00
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/features: Fix hrtick reprogramming
2021-03-07 12:20:47 +01:00
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_bit.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
wait.c
sched/wait: Deduplicate code with do-while
2019-06-24 19:23:40 +02:00