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authorDamien Le Moal <damien.lemoal@wdc.com>2018-11-20 10:52:34 +0900
committerJens Axboe <axboe@kernel.dk>2018-11-19 19:03:44 -0700
commite2b3fa5af70c1e646270f6c7c799414f5e904d7a (patch)
treec4a2a5236528e6b4efe8537328e1d9647b84795d /block/blk-mq.c
parent23464f8c3407b83106463999b64fe10dc66ff6a3 (diff)
block: Remove bio->bi_ioc
bio->bi_ioc is never set so always NULL. Remove references to it in bio_disassociate_task() and in rq_ioc() and delete this field from struct bio. With this change, rq_ioc() always returns current->io_context without the need for a bio argument. Further simplify the code and make it more readable by also removing this helper, which also allows to simplify blk_mq_sched_assign_ioc() by removing its bio argument. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Adam Manzanares <adam.manzanares@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 52b1c97cd7c6..174384eaace7 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -389,8 +389,8 @@ static struct request *blk_mq_get_request(struct request_queue *q,
if (!op_is_flush(data->cmd_flags)) {
rq->elv.icq = NULL;
if (e && e->type->ops.prepare_request) {
- if (e->type->icq_cache && rq_ioc(bio))
- blk_mq_sched_assign_ioc(rq, bio);
+ if (e->type->icq_cache)
+ blk_mq_sched_assign_ioc(rq);
e->type->ops.prepare_request(rq, bio);
rq->rq_flags |= RQF_ELVPRIV;