diff options
Diffstat (limited to 'block/blk-mq-tag.c')
| -rw-r--r-- | block/blk-mq-tag.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index ed96474d75cb..a07ca3488d96 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -75,6 +75,10 @@ void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool include_reserve) struct blk_mq_bitmap_tags *bt; int i, wake_index; + /* + * Make sure all changes prior to this are visible from other CPUs. + */ + smp_mb(); bt = &tags->bitmap_tags; wake_index = atomic_read(&bt->wake_index); for (i = 0; i < BT_WAIT_QUEUES; i++) { @@ -264,7 +268,7 @@ static int bt_get(struct blk_mq_alloc_data *data, if (tag != -1) return tag; - if (!(data->gfp & __GFP_WAIT)) + if (!gfpflags_allow_blocking(data->gfp)) return -1; bs = bt_wait_ptr(bt, hctx); @@ -641,6 +645,7 @@ void blk_mq_free_tags(struct blk_mq_tags *tags) { bt_free(&tags->bitmap_tags); bt_free(&tags->breserved_tags); + free_cpumask_var(tags->cpumask); kfree(tags); } |