summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/sd_dif.c
diff options
context:
space:
mode:
authorKent Overstreet <kmo@daterainc.com>2013-11-23 17:20:16 -0800
committerKent Overstreet <kmo@daterainc.com>2013-11-23 22:33:50 -0800
commitd57a5f7c6605f15f3b5134837e68b448a7cea88e (patch)
tree95088fe201493ff655fc4da1fe159aca0e8f53dc /drivers/scsi/sd_dif.c
parent1cb9dda4f4332aa560a2db39f92a96e1a8273cf8 (diff)
downloadlinux-d57a5f7c6605f15f3b5134837e68b448a7cea88e.tar.gz
linux-d57a5f7c6605f15f3b5134837e68b448a7cea88e.tar.bz2
linux-d57a5f7c6605f15f3b5134837e68b448a7cea88e.zip
bio-integrity: Convert to bvec_iter
The bio integrity is also stored in a bvec array, so if we use the bvec iter code we just added, the integrity code won't need to implement its own iteration stuff (bio_integrity_mark_head(), bio_integrity_mark_tail()) Signed-off-by: Kent Overstreet <kmo@daterainc.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Diffstat (limited to 'drivers/scsi/sd_dif.c')
-rw-r--r--drivers/scsi/sd_dif.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 6174ca4ea275..a7a691d0af7d 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -365,7 +365,6 @@ void sd_dif_prepare(struct request *rq, sector_t hw_sector,
struct bio *bio;
struct scsi_disk *sdkp;
struct sd_dif_tuple *sdt;
- unsigned int i, j;
u32 phys, virt;
sdkp = rq->bio->bi_bdev->bd_disk->private_data;
@@ -376,19 +375,21 @@ void sd_dif_prepare(struct request *rq, sector_t hw_sector,
phys = hw_sector & 0xffffffff;
__rq_for_each_bio(bio, rq) {
- struct bio_vec *iv;
+ struct bio_vec iv;
+ struct bvec_iter iter;
+ unsigned int j;
/* Already remapped? */
if (bio_flagged(bio, BIO_MAPPED_INTEGRITY))
break;
- virt = bio->bi_integrity->bip_sector & 0xffffffff;
+ virt = bio->bi_integrity->bip_iter.bi_sector & 0xffffffff;
- bip_for_each_vec(iv, bio->bi_integrity, i) {
- sdt = kmap_atomic(iv->bv_page)
- + iv->bv_offset;
+ bip_for_each_vec(iv, bio->bi_integrity, iter) {
+ sdt = kmap_atomic(iv.bv_page)
+ + iv.bv_offset;
- for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
+ for (j = 0; j < iv.bv_len; j += tuple_sz, sdt++) {
if (be32_to_cpu(sdt->ref_tag) == virt)
sdt->ref_tag = cpu_to_be32(phys);
@@ -414,7 +415,7 @@ void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes)
struct scsi_disk *sdkp;
struct bio *bio;
struct sd_dif_tuple *sdt;
- unsigned int i, j, sectors, sector_sz;
+ unsigned int j, sectors, sector_sz;
u32 phys, virt;
sdkp = scsi_disk(scmd->request->rq_disk);
@@ -430,15 +431,16 @@ void sd_dif_complete(struct scsi_cmnd *scmd, unsigned int good_bytes)
phys >>= 3;
__rq_for_each_bio(bio, scmd->request) {
- struct bio_vec *iv;
+ struct bio_vec iv;
+ struct bvec_iter iter;
- virt = bio->bi_integrity->bip_sector & 0xffffffff;
+ virt = bio->bi_integrity->bip_iter.bi_sector & 0xffffffff;
- bip_for_each_vec(iv, bio->bi_integrity, i) {
- sdt = kmap_atomic(iv->bv_page)
- + iv->bv_offset;
+ bip_for_each_vec(iv, bio->bi_integrity, iter) {
+ sdt = kmap_atomic(iv.bv_page)
+ + iv.bv_offset;
- for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
+ for (j = 0; j < iv.bv_len; j += tuple_sz, sdt++) {
if (sectors == 0) {
kunmap_atomic(sdt);