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bio-integrity: update the payload size in bio_integrity_add_page() 

Previously, the bip's bi_size has been set before an integrity pages
were added. If a problem occurs in the process of adding pages for
bip, the bi_size mismatch problem must be dealt with.

When the page is successfully added to bvec, the bi_size is updated.

The parts affected by the change were also contained in this commit.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com>
Tested-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20230803024956epcms2p38186a17392706650c582d38ef3dbcd32@epcms2p3
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jinyoung Choi 2023-08-03 11:49:56 +09:00 committed by Jens Axboe
parent 7c8998f75d
commit 80814b8e35
5 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
block/bio-integrity.c
View File

@ -137,6 +137,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
bvec_set_page(&bip->bip_vec[bip->bip_vcnt], page, len, offset);
bip->bip_vcnt++;
bip->bip_iter.bi_size += len;
return len;
}
@ -244,7 +245,6 @@ bool bio_integrity_prep(struct bio *bio)
}
bip->bip_flags |= BIP_BLOCK_INTEGRITY;
bip->bip_iter.bi_size = len;
bip_set_seed(bip, bio->bi_iter.bi_sector);
if (bi->flags & BLK_INTEGRITY_IP_CHECKSUM)

1
drivers/md/dm-crypt.c
View File

@ -1160,7 +1160,6 @@ static int dm_crypt_integrity_io_alloc(struct dm_crypt_io *io, struct bio *bio)
tag_len = io->cc->on_disk_tag_size * (bio_sectors(bio) >> io->cc->sector_shift);
bip->bip_iter.bi_size = tag_len;
bip->bip_iter.bi_sector = io->cc->start + io->sector;
ret = bio_integrity_add_page(bio, virt_to_page(io->integrity_metadata),

1
drivers/nvme/host/ioctl.c
View File

@ -118,7 +118,6 @@ static void *nvme_add_user_metadata(struct request *req, void __user *ubuf,
goto out_free_meta;
}
bip->bip_iter.bi_size = len;
bip->bip_iter.bi_sector = seed;
ret = bio_integrity_add_page(bio, virt_to_page(buf), len,
offset_in_page(buf));

3
drivers/nvme/target/io-cmd-bdev.c
View File

@ -206,12 +206,11 @@ static int nvmet_bdev_alloc_bip(struct nvmet_req *req, struct bio *bio,
return PTR_ERR(bip);
}
bip->bip_iter.bi_size = bio_integrity_bytes(bi, bio_sectors(bio));
/* virtual start sector must be in integrity interval units */
bip_set_seed(bip, bio->bi_iter.bi_sector >>
(bi->interval_exp - SECTOR_SHIFT));
resid = bip->bip_iter.bi_size;
resid = bio_integrity_bytes(bi, bio_sectors(bio));
while (resid > 0 && sg_miter_next(miter)) {
len = min_t(size_t, miter->length, resid);
rc = bio_integrity_add_page(bio, miter->page, len,

3
drivers/target/target_core_iblock.c
View File

@ -689,7 +689,6 @@ iblock_alloc_bip(struct se_cmd *cmd, struct bio *bio,
return PTR_ERR(bip);
}
bip->bip_iter.bi_size = bio_integrity_bytes(bi, bio_sectors(bio));
/* virtual start sector must be in integrity interval units */
bip_set_seed(bip, bio->bi_iter.bi_sector >>
(bi->interval_exp - SECTOR_SHIFT));
@ -697,7 +696,7 @@ iblock_alloc_bip(struct se_cmd *cmd, struct bio *bio,
pr_debug("IBLOCK BIP Size: %u Sector: %llu\n", bip->bip_iter.bi_size,
(unsigned long long)bip->bip_iter.bi_sector);
resid = bip->bip_iter.bi_size;
resid = bio_integrity_bytes(bi, bio_sectors(bio));
while (resid > 0 && sg_miter_next(miter)) {
len = min_t(size_t, miter->length, resid);