diff options
| author | Xiao Ni <xni@redhat.com> | 2021-02-04 15:50:43 +0800 |
|---|---|---|
| committer | Song Liu <songliubraving@fb.com> | 2021-03-24 16:29:06 -0700 |
| commit | cf78408f937a67f59f5e90ee8e6cadeed7c128a8 (patch) | |
| tree | e6c6fccc278c744c2f0763ff073088e7ebda7daa /drivers/md | |
| parent | 14d97622448acbea0348be62f62e25d9a361e16b (diff) | |
| download | linux-stable-cf78408f937a67f59f5e90ee8e6cadeed7c128a8.tar.gz linux-stable-cf78408f937a67f59f5e90ee8e6cadeed7c128a8.tar.bz2 linux-stable-cf78408f937a67f59f5e90ee8e6cadeed7c128a8.zip | |
md: add md_submit_discard_bio() for submitting discard bio
Move these logic from raid0.c to md.c, so that we can also use it in
raid10.c.
Reviewed-by: Coly Li <colyli@suse.de>
Reviewed-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Tested-by: Adrian Huang <ahuang12@lenovo.com>
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/md.c | 20 | ||||
| -rw-r--r-- | drivers/md/md.h | 2 | ||||
| -rw-r--r-- | drivers/md/raid0.c | 14 |
3 files changed, 24 insertions, 12 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 21da0c48f6c2..498a1c2e95e9 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8575,6 +8575,26 @@ void md_write_end(struct mddev *mddev) EXPORT_SYMBOL(md_write_end); +/* This is used by raid0 and raid10 */ +void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, + struct bio *bio, sector_t start, sector_t size) +{ + struct bio *discard_bio = NULL; + + if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, 0, + &discard_bio) || !discard_bio) + return; + + 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); + submit_bio_noacct(discard_bio); +} +EXPORT_SYMBOL_GPL(md_submit_discard_bio); + /* md_allow_write(mddev) * Calling this ensures that the array is marked 'active' so that writes * may proceed without blocking. It is important to call this before diff --git a/drivers/md/md.h b/drivers/md/md.h index bcbba1b5ec4a..fb7eab58cfd5 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -713,6 +713,8 @@ extern void md_write_end(struct mddev *mddev); extern void md_done_sync(struct mddev *mddev, int blocks, int ok); extern void md_error(struct mddev *mddev, struct md_rdev *rdev); extern void md_finish_reshape(struct mddev *mddev); +void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev, + struct bio *bio, sector_t start, sector_t size); extern bool __must_check md_flush_request(struct mddev *mddev, struct bio *bio); extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev, diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 67f157f2525d..e5d7411cba9b 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -477,7 +477,6 @@ static void raid0_handle_discard(struct mddev *mddev, struct bio *bio) for (disk = 0; disk < zone->nb_dev; disk++) { sector_t dev_start, dev_end; - struct bio *discard_bio = NULL; struct md_rdev *rdev; if (disk < start_disk_index) @@ -500,18 +499,9 @@ static void raid0_handle_discard(struct mddev *mddev, struct bio *bio) rdev = conf->devlist[(zone - conf->strip_zone) * conf->strip_zone[0].nb_dev + disk]; - if (__blkdev_issue_discard(rdev->bdev, + md_submit_discard_bio(mddev, rdev, bio, dev_start + zone->dev_start + rdev->data_offset, - dev_end - dev_start, GFP_NOIO, 0, &discard_bio) || - !discard_bio) - continue; - 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); - submit_bio_noacct(discard_bio); + dev_end - dev_start); } bio_endio(bio); } |