| commit | e9d3c866bf4cdbb6637e6cb268c26dfdf06d8cd3 | [log] [tgz] |
|---|---|---|
| author | Fam Zheng <zhengfeiran@bytedance.com> | Wed Aug 28 11:54:51 2019 +0800 |
| committer | Jens Axboe <axboe@kernel.dk> | Fri Sep 06 14:33:48 2019 -0600 |
| tree | e5054d61888dcf6f15a42f89d5e0a3018601538b | |
| parent | a26142559c2be8c0975b941e3110d23a9e552ce5 [diff] |
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>