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-rw-r--r--block/blk-mq.c8
-rw-r--r--include/linux/blk-mq.h1
2 files changed, 1 insertions, 8 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 5ff66f203cd0..998c041358f2 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1531,13 +1531,7 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
}
plug = current->plug;
- /*
- * If the driver supports defer issued based on 'last', then
- * queue it up like normal since we can potentially save some
- * CPU this way.
- */
- if (((plug && !blk_queue_nomerges(q)) || is_sync) &&
- !(data.hctx->flags & BLK_MQ_F_DEFER_ISSUE)) {
+ if (((plug && !blk_queue_nomerges(q)) || is_sync)) {
struct request *old_rq = NULL;
blk_mq_bio_to_request(rq, bio);
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index b296a9006117..5b3e201c8d4f 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -152,7 +152,6 @@ enum {
BLK_MQ_F_SHOULD_MERGE = 1 << 0,
BLK_MQ_F_TAG_SHARED = 1 << 1,
BLK_MQ_F_SG_MERGE = 1 << 2,
- BLK_MQ_F_DEFER_ISSUE = 1 << 4,
BLK_MQ_F_BLOCKING = 1 << 5,
BLK_MQ_F_NO_SCHED = 1 << 6,
BLK_MQ_F_ALLOC_POLICY_START_BIT = 8,