From 1c02fca620f7273b597591065d366e2cca948d8f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 3 Dec 2020 17:21:38 +0100 Subject: [PATCH] block: remove the request_queue argument to the block_bio_remap tracepoint The request_queue can trivially be derived from the bio. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Chaitanya Kulkarni Acked-by: Tejun Heo Signed-off-by: Jens Axboe --- block/blk-core.c | 2 +- drivers/md/dm.c | 3 +-- drivers/md/md-linear.c | 3 +-- drivers/md/md.c | 5 ++--- drivers/md/raid0.c | 4 ++-- drivers/md/raid1.c | 7 +++---- drivers/md/raid10.c | 6 ++---- drivers/md/raid5.c | 15 +++++++-------- drivers/nvme/host/multipath.c | 3 +-- include/trace/events/block.h | 8 +++----- kernel/trace/blktrace.c | 14 +++++--------- 11 files changed, 28 insertions(+), 42 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index cb24654..96e5fcd 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -758,7 +758,7 @@ static inline int blk_partition_remap(struct bio *bio) if (bio_check_eod(bio, bdev_nr_sectors(p))) goto out; bio->bi_iter.bi_sector += p->bd_start_sect; - trace_block_bio_remap(bio->bi_disk->queue, bio, p->bd_dev, + trace_block_bio_remap(bio, p->bd_dev, bio->bi_iter.bi_sector - p->bd_start_sect); } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 9a5bd90..5181907 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1276,8 +1276,7 @@ static blk_qc_t __map_bio(struct dm_target_io *tio) break; case DM_MAPIO_REMAPPED: /* the bio has been remapped so dispatch it */ - trace_block_bio_remap(clone->bi_disk->queue, clone, - bio_dev(io->orig_bio), sector); + trace_block_bio_remap(clone, bio_dev(io->orig_bio), sector); ret = submit_bio_noacct(clone); break; case DM_MAPIO_KILL: diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c index 98f1b4b..68cac7d 100644 --- a/drivers/md/md-linear.c +++ b/drivers/md/md-linear.c @@ -257,8 +257,7 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio) bio_endio(bio); } else { if (mddev->gendisk) - trace_block_bio_remap(bio->bi_disk->queue, - bio, disk_devt(mddev->gendisk), + trace_block_bio_remap(bio, disk_devt(mddev->gendisk), bio_sector); mddev_check_writesame(mddev, bio); mddev_check_write_zeroes(mddev, bio); diff --git a/drivers/md/md.c b/drivers/md/md.c index 0065736..c555be0 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8591,9 +8591,8 @@ void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, bio_chain(discard_bio, bio); bio_clone_blkg_association(discard_bio, bio); if (mddev->gendisk) - trace_block_bio_remap(bdev_get_queue(rdev->bdev), - discard_bio, disk_devt(mddev->gendisk), - bio->bi_iter.bi_sector); + trace_block_bio_remap(discard_bio, disk_devt(mddev->gendisk), + bio->bi_iter.bi_sector); submit_bio_noacct(discard_bio); } EXPORT_SYMBOL(md_submit_discard_bio); diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 6f44177..e5d7411 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -571,8 +571,8 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio) tmp_dev->data_offset; if (mddev->gendisk) - trace_block_bio_remap(bio->bi_disk->queue, bio, - disk_devt(mddev->gendisk), bio_sector); + trace_block_bio_remap(bio, disk_devt(mddev->gendisk), + bio_sector); mddev_check_writesame(mddev, bio); mddev_check_write_zeroes(mddev, bio); submit_bio_noacct(bio); diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 960d854c..c034799 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1305,8 +1305,8 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, read_bio->bi_private = r1_bio; if (mddev->gendisk) - trace_block_bio_remap(read_bio->bi_disk->queue, read_bio, - disk_devt(mddev->gendisk), r1_bio->sector); + trace_block_bio_remap(read_bio, disk_devt(mddev->gendisk), + r1_bio->sector); submit_bio_noacct(read_bio); } @@ -1517,8 +1517,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, atomic_inc(&r1_bio->remaining); if (mddev->gendisk) - trace_block_bio_remap(mbio->bi_disk->queue, - mbio, disk_devt(mddev->gendisk), + trace_block_bio_remap(mbio, disk_devt(mddev->gendisk), r1_bio->sector); /* flush_pending_writes() needs access to the rdev so...*/ mbio->bi_disk = (void *)conf->mirrors[i].rdev; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index b7bca67..a6f99fa 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1200,8 +1200,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio, read_bio->bi_private = r10_bio; if (mddev->gendisk) - trace_block_bio_remap(read_bio->bi_disk->queue, - read_bio, disk_devt(mddev->gendisk), + trace_block_bio_remap(read_bio, disk_devt(mddev->gendisk), r10_bio->sector); submit_bio_noacct(read_bio); return; @@ -1250,8 +1249,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio, mbio->bi_private = r10_bio; if (conf->mddev->gendisk) - trace_block_bio_remap(mbio->bi_disk->queue, - mbio, disk_devt(conf->mddev->gendisk), + trace_block_bio_remap(mbio, disk_devt(conf->mddev->gendisk), r10_bio->sector); /* flush_pending_writes() needs access to the rdev so...*/ mbio->bi_disk = (void *)rdev; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 3934347..3a90cc0 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1222,9 +1222,9 @@ again: set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags); if (conf->mddev->gendisk) - trace_block_bio_remap(bi->bi_disk->queue, - bi, disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + trace_block_bio_remap(bi, + disk_devt(conf->mddev->gendisk), + sh->dev[i].sector); if (should_defer && op_is_write(op)) bio_list_add(&pending_bios, bi); else @@ -1272,9 +1272,9 @@ again: if (op == REQ_OP_DISCARD) rbi->bi_vcnt = 0; if (conf->mddev->gendisk) - trace_block_bio_remap(rbi->bi_disk->queue, - rbi, disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + trace_block_bio_remap(rbi, + disk_devt(conf->mddev->gendisk), + sh->dev[i].sector); if (should_defer && op_is_write(op)) bio_list_add(&pending_bios, rbi); else @@ -5468,8 +5468,7 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio) spin_unlock_irq(&conf->device_lock); if (mddev->gendisk) - trace_block_bio_remap(align_bi->bi_disk->queue, - align_bi, disk_devt(mddev->gendisk), + trace_block_bio_remap(align_bi, disk_devt(mddev->gendisk), raid_bio->bi_iter.bi_sector); submit_bio_noacct(align_bi); return 1; diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 74896be..106cf5c 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -312,8 +312,7 @@ blk_qc_t nvme_ns_head_submit_bio(struct bio *bio) if (likely(ns)) { bio->bi_disk = ns->disk; bio->bi_opf |= REQ_NVME_MPATH; - trace_block_bio_remap(bio->bi_disk->queue, bio, - disk_devt(ns->head->disk), + trace_block_bio_remap(bio, disk_devt(ns->head->disk), bio->bi_iter.bi_sector); ret = submit_bio_noacct(bio); } else if (nvme_available_path(head)) { diff --git a/include/trace/events/block.h b/include/trace/events/block.h index b415e4c..8fb8957 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -450,9 +450,8 @@ TRACE_EVENT(block_split, /** * block_bio_remap - map request for a logical device to the raw device - * @q: queue holding the operation * @bio: revised operation - * @dev: device for the operation + * @dev: original device for the operation * @from: original sector for the operation * * An operation for a logical device has been mapped to the @@ -460,10 +459,9 @@ TRACE_EVENT(block_split, */ TRACE_EVENT(block_bio_remap, - TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, - sector_t from), + TP_PROTO(struct bio *bio, dev_t dev, sector_t from), - TP_ARGS(q, bio, dev, from), + TP_ARGS(bio, dev, from), TP_STRUCT__entry( __field( dev_t, dev ) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 3ca6d62..4056371 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -993,20 +993,16 @@ static void blk_add_trace_split(void *ignore, struct bio *bio, unsigned int pdu) /** * blk_add_trace_bio_remap - Add a trace for a bio-remap operation * @ignore: trace callback data parameter (not used) - * @q: queue the io is for * @bio: the source bio - * @dev: target device + * @dev: source device * @from: source sector * - * Description: - * Device mapper or raid target sometimes need to split a bio because - * it spans a stripe (or similar). Add a trace for that action. - * + * Called after a bio is remapped to a different device and/or sector. **/ -static void blk_add_trace_bio_remap(void *ignore, - struct request_queue *q, struct bio *bio, - dev_t dev, sector_t from) +static void blk_add_trace_bio_remap(void *ignore, struct bio *bio, dev_t dev, + sector_t from) { + struct request_queue *q = bio->bi_disk->queue; struct blk_trace *bt; struct blk_io_trace_remap r; -- 2.7.4