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| H A D | bfq-wf2q.c | diff e9d3c866bf4cdbb6637e6cb268c26dfdf06d8cd3 Tue Aug 27 22:54:51 CDT 2019 Fam Zheng <zhengfeiran@bytedance.com> bfq: Fix the missing barrier in __bfq_entity_update_weight_prio
The comment of bfq_group_set_weight says the reading of prio_changed
should happen before the reading of weight, but a memory barrier is
missing here. Add it now, to match the smp_wmb() there.
Signed-off-by: Fam Zheng <zhengfeiran@bytedance.com>
Reviewed-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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