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| author | Fam Zheng <zhengfeiran@bytedance.com> | 2019-08-28 05:54:51 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-09-06 22:33:48 +0200 |
| commit | e9d3c866bf4cdbb6637e6cb268c26dfdf06d8cd3 (patch) | |
| tree | e5054d61888dcf6f15a42f89d5e0a3018601538b /block/blk-mq-cpumap.c | |
| parent | block: fix elevator_get_by_features() (diff) | |
| download | linux-e9d3c866bf4cdbb6637e6cb268c26dfdf06d8cd3.tar.xz linux-e9d3c866bf4cdbb6637e6cb268c26dfdf06d8cd3.zip | |
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>
Diffstat (limited to 'block/blk-mq-cpumap.c')
0 files changed, 0 insertions, 0 deletions