From c396b90e502691fc6ff7b43984cfd9d1b15aaa80 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 3 Mar 2024 07:01:40 -0700 Subject: md: add a mddev_trace_remap helper Add a helper to trace bio remapping that hides some argument dereferences and the check for a DM-mapped MD device. Signed-off-by: Christoph Hellwig Reviewed--by: Song Liu Tested-by: Song Liu Signed-off-by: Song Liu Link: https://lore.kernel.org/r/20240303140150.5435-2-hch@lst.de --- drivers/md/md.c | 6 +----- drivers/md/md.h | 8 ++++++++ drivers/md/raid0.c | 5 +---- drivers/md/raid1.c | 11 ++--------- drivers/md/raid10.c | 10 ++-------- drivers/md/raid5.c | 14 +++----------- 6 files changed, 17 insertions(+), 37 deletions(-) (limited to 'drivers/md') diff --git a/drivers/md/md.c b/drivers/md/md.c index 64d544f09295..a52642ecd394 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -65,7 +65,6 @@ #include #include -#include #include "md.h" #include "md-bitmap.h" #include "md-cluster.h" @@ -8686,10 +8685,7 @@ 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(discard_bio, - disk_devt(mddev->gendisk), - bio->bi_iter.bi_sector); + mddev_trace_remap(mddev, discard_bio, bio->bi_iter.bi_sector); submit_bio_noacct(discard_bio); } EXPORT_SYMBOL_GPL(md_submit_discard_bio); diff --git a/drivers/md/md.h b/drivers/md/md.h index 556db28a49aa..928086b638a3 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -18,6 +18,7 @@ #include #include #include +#include #include "md-cluster.h" #define MaxSector (~(sector_t)0) @@ -910,4 +911,11 @@ int do_md_run(struct mddev *mddev); extern const struct block_device_operations md_fops; +static inline void mddev_trace_remap(struct mddev *mddev, struct bio *bio, + sector_t sector) +{ + if (mddev->gendisk) + trace_block_bio_remap(bio, disk_devt(mddev->gendisk), sector); +} + #endif /* _MD_MD_H */ diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index c50a7abda744..aff094de9743 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -578,10 +578,7 @@ static void raid0_map_submit_bio(struct mddev *mddev, struct bio *bio) bio_set_dev(bio, tmp_dev->bdev); bio->bi_iter.bi_sector = sector + zone->dev_start + tmp_dev->data_offset; - - if (mddev->gendisk) - trace_block_bio_remap(bio, disk_devt(mddev->gendisk), - bio_sector); + mddev_trace_remap(mddev, bio, bio_sector); mddev_check_write_zeroes(mddev, bio); submit_bio_noacct(bio); } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index afca975ec7f3..421154430f24 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1418,11 +1418,7 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, test_bit(R1BIO_FailFast, &r1_bio->state)) read_bio->bi_opf |= MD_FAILFAST; read_bio->bi_private = r1_bio; - - if (mddev->gendisk) - trace_block_bio_remap(read_bio, disk_devt(mddev->gendisk), - r1_bio->sector); - + mddev_trace_remap(mddev, read_bio, r1_bio->sector); submit_bio_noacct(read_bio); } @@ -1655,10 +1651,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, mbio->bi_private = r1_bio; atomic_inc(&r1_bio->remaining); - - if (mddev->gendisk) - trace_block_bio_remap(mbio, disk_devt(mddev->gendisk), - r1_bio->sector); + mddev_trace_remap(mddev, mbio, r1_bio->sector); /* flush_pending_writes() needs access to the rdev so...*/ mbio->bi_bdev = (void *)rdev; if (!raid1_add_bio_to_plug(mddev, mbio, raid1_unplug, disks)) { diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8aecdb1ccc16..9335a1620e6c 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1235,10 +1235,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio, test_bit(R10BIO_FailFast, &r10_bio->state)) read_bio->bi_opf |= MD_FAILFAST; read_bio->bi_private = r10_bio; - - if (mddev->gendisk) - trace_block_bio_remap(read_bio, disk_devt(mddev->gendisk), - r10_bio->sector); + mddev_trace_remap(mddev, read_bio, r10_bio->sector); submit_bio_noacct(read_bio); return; } @@ -1274,10 +1271,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio, && enough(conf, devnum)) mbio->bi_opf |= MD_FAILFAST; mbio->bi_private = r10_bio; - - if (conf->mddev->gendisk) - trace_block_bio_remap(mbio, disk_devt(conf->mddev->gendisk), - r10_bio->sector); + mddev_trace_remap(mddev, mbio, r10_bio->sector); /* flush_pending_writes() needs access to the rdev so...*/ mbio->bi_bdev = (void *)rdev; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 58f8395b56d6..f0bc96f68665 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1295,10 +1295,7 @@ again: if (rrdev) set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags); - if (conf->mddev->gendisk) - trace_block_bio_remap(bi, - disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + mddev_trace_remap(conf->mddev, bi, sh->dev[i].sector); if (should_defer && op_is_write(op)) bio_list_add(&pending_bios, bi); else @@ -1342,10 +1339,7 @@ again: */ if (op == REQ_OP_DISCARD) rbi->bi_vcnt = 0; - if (conf->mddev->gendisk) - trace_block_bio_remap(rbi, - disk_devt(conf->mddev->gendisk), - sh->dev[i].sector); + mddev_trace_remap(conf->mddev, rbi, sh->dev[i].sector); if (should_defer && op_is_write(op)) bio_list_add(&pending_bios, rbi); else @@ -5523,9 +5517,7 @@ 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_bio, disk_devt(mddev->gendisk), - raid_bio->bi_iter.bi_sector); + mddev_trace_remap(mddev, align_bio, raid_bio->bi_iter.bi_sector); submit_bio_noacct(align_bio); return 1; } -- cgit