diff options
Diffstat (limited to 'block/blk-flush.c')
| -rw-r--r-- | block/blk-flush.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 3c882cb..20b7c7a 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -56,7 +56,7 @@ * Once while executing DATA and again after the whole sequence is * complete. The first completion updates the contained bio but doesn't * finish it so that the bio submitter is notified only after the whole - * sequence is complete. This is implemented by testing REQ_FLUSH_SEQ in + * sequence is complete. This is implemented by testing RQF_FLUSH_SEQ in * req_bio_endio(). * * The above peculiarity requires that each FLUSH/FUA request has only one @@ -127,17 +127,14 @@ static void blk_flush_restore_request(struct request *rq) rq->bio = rq->biotail; /* make @rq a normal request */ - rq->cmd_flags &= ~REQ_FLUSH_SEQ; + rq->rq_flags &= ~RQF_FLUSH_SEQ; rq->end_io = rq->flush.saved_end_io; } static bool blk_flush_queue_rq(struct request *rq, bool add_front) { if (rq->q->mq_ops) { - struct request_queue *q = rq->q; - - blk_mq_add_to_requeue_list(rq, add_front); - blk_mq_kick_requeue_list(q); + blk_mq_add_to_requeue_list(rq, add_front, true); return false; } else { if (add_front) @@ -330,7 +327,8 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq) } flush_rq->cmd_type = REQ_TYPE_FS; - req_set_op_attrs(flush_rq, REQ_OP_FLUSH, WRITE_FLUSH | REQ_FLUSH_SEQ); + flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH; + flush_rq->rq_flags |= RQF_FLUSH_SEQ; flush_rq->rq_disk = first_rq->rq_disk; flush_rq->end_io = flush_end_io; @@ -368,7 +366,7 @@ static void flush_data_end_io(struct request *rq, int error) elv_completed_request(q, rq); /* for avoiding double accounting */ - rq->cmd_flags &= ~REQ_STARTED; + rq->rq_flags &= ~RQF_STARTED; /* * After populating an empty queue, kick it to avoid stall. Read @@ -426,6 +424,13 @@ void blk_insert_flush(struct request *rq) rq->cmd_flags &= ~REQ_FUA; /* + * REQ_PREFLUSH|REQ_FUA implies REQ_SYNC, so if we clear any + * of those flags, we have to set REQ_SYNC to avoid skewing + * the request accounting. + */ + rq->cmd_flags |= REQ_SYNC; + + /* * An empty flush handed down from a stacking driver may * translate into nothing if the underlying device does not * advertise a write-back cache. In this case, simply @@ -449,7 +454,7 @@ void blk_insert_flush(struct request *rq) if ((policy & REQ_FSEQ_DATA) && !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) { if (q->mq_ops) { - blk_mq_insert_request(rq, false, false, true); + blk_mq_insert_request(rq, false, true, false); } else list_add_tail(&rq->queuelist, &q->queue_head); return; @@ -461,7 +466,7 @@ void blk_insert_flush(struct request *rq) */ memset(&rq->flush, 0, sizeof(rq->flush)); INIT_LIST_HEAD(&rq->flush.list); - rq->cmd_flags |= REQ_FLUSH_SEQ; + rq->rq_flags |= RQF_FLUSH_SEQ; rq->flush.saved_end_io = rq->end_io; /* Usually NULL */ if (q->mq_ops) { rq->end_io = mq_flush_data_end_io; @@ -513,7 +518,7 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask, bio = bio_alloc(gfp_mask, 0); bio->bi_bdev = bdev; - bio_set_op_attrs(bio, REQ_OP_WRITE, WRITE_FLUSH); + bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH; ret = submit_bio_wait(bio); |
