diff mbox series

[v2,2/4] bio-integrity: Sets the payload size in bio_integrity_add_page()

Message ID 20230731125224epcms2p7e3c5bbe1fd544c0fd586520b2d155872@epcms2p7 (mailing list archive)
State New, archived
Headers show
Series multi-page bvec configuration for integrity payload | expand

Commit Message

Jinyoung Choi July 31, 2023, 12:52 p.m. UTC 
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>

Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com>
---
 block/bio-integrity.c               | 2 +-
 drivers/md/dm-crypt.c               | 1 -
 drivers/nvme/host/ioctl.c           | 1 -
 drivers/nvme/target/io-cmd-bdev.c   | 3 +--
 drivers/target/target_core_iblock.c | 3 +--
 5 files changed, 3 insertions(+), 7 deletions(-)

Comments

Christoph Hellwig Aug. 1, 2023, 9:59 a.m. UTC | #1 
s/Sets/update/ in the subject line.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>
diff mbox series

Patch

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 045553a164e0..6220a99977a4 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -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)
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 1dc6227d353e..f2662c21a6df 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -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),
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c
index 5c3250f36ce7..19a5177bc360 100644
--- a/drivers/nvme/host/ioctl.c
+++ b/drivers/nvme/host/ioctl.c
@@ -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));
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 2733e0158585..468833675cc9 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -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,
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index 3d1b511ea284..a7050f63b7cc 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -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);