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block: pass a block_device and opf to blk_next_bio
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All callers need to set the block_device and operation, so lift that into
the common code.

Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220124091107.642561-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Chaitanya Kulkarni authored and axboe committed Feb 2, 2022
1 parent 3b005bf commit 0a3140e
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Showing 6 changed files with 18 additions and 27 deletions.
6 changes: 5 additions & 1 deletion block/bio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -344,10 +344,14 @@ void bio_chain(struct bio *bio, struct bio *parent)
}
EXPORT_SYMBOL(bio_chain);

struct bio *blk_next_bio(struct bio *bio, unsigned int nr_pages, gfp_t gfp)
struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
unsigned int nr_pages, unsigned int opf, gfp_t gfp)
{
struct bio *new = bio_alloc(gfp, nr_pages);

bio_set_dev(new, bdev);
new->bi_opf = opf;

if (bio) {
bio_chain(bio, new);
submit_bio(bio);
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19 changes: 5 additions & 14 deletions block/blk-lib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -82,11 +82,8 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,

WARN_ON_ONCE((req_sects << 9) > UINT_MAX);

bio = blk_next_bio(bio, 0, gfp_mask);
bio = blk_next_bio(bio, bdev, 0, op, gfp_mask);
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, bdev);
bio_set_op_attrs(bio, op, 0);

bio->bi_iter.bi_size = req_sects << 9;
sector += req_sects;
nr_sects -= req_sects;
Expand Down Expand Up @@ -176,14 +173,12 @@ static int __blkdev_issue_write_same(struct block_device *bdev, sector_t sector,
max_write_same_sectors = bio_allowed_max_sectors(q);

while (nr_sects) {
bio = blk_next_bio(bio, 1, gfp_mask);
bio = blk_next_bio(bio, bdev, 1, REQ_OP_WRITE_SAME, gfp_mask);
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, bdev);
bio->bi_vcnt = 1;
bio->bi_io_vec->bv_page = page;
bio->bi_io_vec->bv_offset = 0;
bio->bi_io_vec->bv_len = bdev_logical_block_size(bdev);
bio_set_op_attrs(bio, REQ_OP_WRITE_SAME, 0);

if (nr_sects > max_write_same_sectors) {
bio->bi_iter.bi_size = max_write_same_sectors << 9;
Expand Down Expand Up @@ -252,10 +247,8 @@ static int __blkdev_issue_write_zeroes(struct block_device *bdev,
return -EOPNOTSUPP;

while (nr_sects) {
bio = blk_next_bio(bio, 0, gfp_mask);
bio = blk_next_bio(bio, bdev, 0, REQ_OP_WRITE_ZEROES, gfp_mask);
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE_ZEROES;
if (flags & BLKDEV_ZERO_NOUNMAP)
bio->bi_opf |= REQ_NOUNMAP;

Expand Down Expand Up @@ -303,11 +296,9 @@ static int __blkdev_issue_zero_pages(struct block_device *bdev,
return -EPERM;

while (nr_sects != 0) {
bio = blk_next_bio(bio, __blkdev_sectors_to_bio_pages(nr_sects),
gfp_mask);
bio = blk_next_bio(bio, bdev, __blkdev_sectors_to_bio_pages(nr_sects),
REQ_OP_WRITE, gfp_mask);
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, bdev);
bio_set_op_attrs(bio, REQ_OP_WRITE, 0);

while (nr_sects != 0) {
sz = min((sector_t) PAGE_SIZE, nr_sects << 9);
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9 changes: 3 additions & 6 deletions block/blk-zoned.c
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Original file line number Diff line number Diff line change
Expand Up @@ -215,9 +215,8 @@ static int blkdev_zone_reset_all_emulated(struct block_device *bdev,
continue;
}

bio = blk_next_bio(bio, 0, gfp_mask);
bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_ZONE_RESET | REQ_SYNC;
bio = blk_next_bio(bio, bdev, 0, REQ_OP_ZONE_RESET | REQ_SYNC,
gfp_mask);
bio->bi_iter.bi_sector = sector;
sector += zone_sectors;

Expand Down Expand Up @@ -306,9 +305,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
}

while (sector < end_sector) {
bio = blk_next_bio(bio, 0, gfp_mask);
bio_set_dev(bio, bdev);
bio->bi_opf = op | REQ_SYNC;
bio = blk_next_bio(bio, bdev, 0, op | REQ_SYNC, gfp_mask);
bio->bi_iter.bi_sector = sector;
sector += zone_sectors;

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2 changes: 0 additions & 2 deletions block/blk.h
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Original file line number Diff line number Diff line change
Expand Up @@ -406,8 +406,6 @@ extern int blk_iolatency_init(struct request_queue *q);
static inline int blk_iolatency_init(struct request_queue *q) { return 0; }
#endif

struct bio *blk_next_bio(struct bio *bio, unsigned int nr_pages, gfp_t gfp);

#ifdef CONFIG_BLK_DEV_ZONED
void blk_queue_free_zone_bitmaps(struct request_queue *q);
void blk_queue_clear_zone_settings(struct request_queue *q);
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6 changes: 3 additions & 3 deletions drivers/nvme/target/zns.c
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Original file line number Diff line number Diff line change
Expand Up @@ -412,10 +412,10 @@ static u16 nvmet_bdev_zone_mgmt_emulate_all(struct nvmet_req *req)

while (sector < get_capacity(bdev->bd_disk)) {
if (test_bit(blk_queue_zone_no(q, sector), d.zbitmap)) {
bio = blk_next_bio(bio, 0, GFP_KERNEL);
bio->bi_opf = zsa_req_op(req->cmd->zms.zsa) | REQ_SYNC;
bio = blk_next_bio(bio, bdev, 0,
zsa_req_op(req->cmd->zms.zsa) | REQ_SYNC,
GFP_KERNEL);
bio->bi_iter.bi_sector = sector;
bio_set_dev(bio, bdev);
/* This may take a while, so be nice to others */
cond_resched();
}
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3 changes: 2 additions & 1 deletion include/linux/bio.h
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Original file line number Diff line number Diff line change
Expand Up @@ -790,6 +790,7 @@ static inline void bio_set_polled(struct bio *bio, struct kiocb *kiocb)
bio->bi_opf |= REQ_NOWAIT;
}

struct bio *blk_next_bio(struct bio *bio, unsigned int nr_pages, gfp_t gfp);
struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
unsigned int nr_pages, unsigned int opf, gfp_t gfp);

#endif /* __LINUX_BIO_H */

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