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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-15 20:36:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-15 20:36:42 -0700 |
| commit | 4b6c093e21d36bede0fd88fd0aeb3b03647260e4 (patch) | |
| tree | 06404c234b2cf62ca3ffb9107aa2bf0007b1157b /block/blk-flush.c | |
| parent | d84835b118ed8c14c21fa056ca54014b2eff068b (diff) | |
| parent | c1e2b8422bf946c80e832cee22b3399634f87a2c (diff) | |
Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes on the block side of things:
- Discard granularity fix (Coly)
- rnbd cleanups (Guoqing)
- md error handling fix (Dan)
- md sysfs fix (Junxiao)
- Fix flush request accounting, which caused an IO slowdown for some
configurations (Ming)
- Properly propagate loop flag for partition scanning (Lennart)"
* tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block:
block: fix double account of flush request's driver tag
loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURE
rnbd: no need to set bi_end_io in rnbd_bio_map_kern
rnbd: remove rnbd_dev_submit_io
md-cluster: Fix potential error pointer dereference in resize_bitmaps()
block: check queue's limits.discard_granularity in __blkdev_issue_discard()
md: get sysfs entry after redundancy attr group create
Diffstat (limited to 'block/blk-flush.c')
| -rw-r--r-- | block/blk-flush.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 6e1543c10493..53abb5c73d99 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -308,9 +308,16 @@ static void blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq, flush_rq->mq_ctx = first_rq->mq_ctx; flush_rq->mq_hctx = first_rq->mq_hctx; - if (!q->elevator) + if (!q->elevator) { flush_rq->tag = first_rq->tag; - else + + /* + * We borrow data request's driver tag, so have to mark + * this flush request as INFLIGHT for avoiding double + * account of this driver tag + */ + flush_rq->rq_flags |= RQF_MQ_INFLIGHT; + } else flush_rq->internal_tag = first_rq->internal_tag; flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH; |