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| author | Mathieu Desnoyers <[email protected]> | 2021-02-17 16:56:51 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2021-03-06 11:40:21 +0000 |
| commit | ce29ddc47b91f97e7f69a0fb7cbb5845f52a9825 (patch) | |
| tree | c78f7da880f9002fe60aa2de83f73976757acd66 /drivers/perf/arm-ccn.c | |
| parent | sched: Simplify set_affinity_pending refcounts (diff) | |
| download | kernel-ce29ddc47b91f97e7f69a0fb7cbb5845f52a9825.tar.gz kernel-ce29ddc47b91f97e7f69a0fb7cbb5845f52a9825.zip | |
sched/membarrier: fix missing local execution of ipi_sync_rq_state()
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 <[email protected]>
Signed-off-by: Mathieu Desnoyers <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Cc: [email protected] # 5.4.x+
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/perf/arm-ccn.c')
0 files changed, 0 insertions, 0 deletions