From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Jan Hoeppner <hoeppner@linux.ibm.com>,
Mike Snitzer <snitzer@redhat.com>,
linux-nvme@lists.infradead.org,
virtualization@lists.linux-foundation.org,
Song Liu <song@kernel.org>,
dm-devel@redhat.com,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org,
Richard Weinberger <richard@nod.at>,
Ilya Dryomov <idryomov@gmail.com>,
linux-um@lists.infradead.org, Coly Li <colyli@suse.de>,
linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org,
Stefan Haberland <sth@linux.ibm.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
ceph-devel@vger.kernel.org, linux-block@vger.kernel.org,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Geoff Levand <geoff@infradead.org>,
Phillip Lougher <phillip@squashfs.org.uk>
Subject: [dm-devel] [PATCH 13/15] dasd: use bvec_virt
Date: Wed, 4 Aug 2021 11:56:32 +0200 [thread overview]
Message-ID: <20210804095634.460779-14-hch@lst.de> (raw)
In-Reply-To: <20210804095634.460779-1-hch@lst.de>
Use bvec_virt instead of open coding it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/s390/block/dasd_diag.c | 2 +-
drivers/s390/block/dasd_eckd.c | 14 +++++++-------
drivers/s390/block/dasd_fba.c | 4 ++--
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 6bb775236c16..db5987281010 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -552,7 +552,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
dbio = dreq->bio;
recid = first_rec;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
for (off = 0; off < bv.bv_len; off += blksize) {
memset(dbio, 0, sizeof (struct dasd_diag_bio));
dbio->type = rw_cmd;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 0de1a463c509..8610ea414322 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -3267,7 +3267,7 @@ static int dasd_eckd_ese_read(struct dasd_ccw_req *cqr, struct irb *irb)
end_blk = (curr_trk + 1) * recs_per_trk;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
for (off = 0; off < bv.bv_len; off += blksize) {
if (first_blk + blk_count >= end_blk) {
cqr->proc_bytes = blk_count * blksize;
@@ -3999,7 +3999,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
last_rec - recid + 1, cmd, basedev, blksize);
}
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
if (dasd_page_cache) {
char *copy = kmem_cache_alloc(dasd_page_cache,
GFP_DMA | __GFP_NOWARN);
@@ -4166,7 +4166,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
idaw_dst = NULL;
idaw_len = 0;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
seg_len = bv.bv_len;
while (seg_len) {
if (new_track) {
@@ -4509,7 +4509,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
new_track = 1;
recid = first_rec;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
seg_len = bv.bv_len;
while (seg_len) {
if (new_track) {
@@ -4542,7 +4542,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
}
} else {
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
last_tidaw = itcw_add_tidaw(itcw, 0x00,
dst, bv.bv_len);
if (IS_ERR(last_tidaw)) {
@@ -4778,7 +4778,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_raw(struct dasd_device *startdev,
idaws = idal_create_words(idaws, rawpadpage, PAGE_SIZE);
}
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
seg_len = bv.bv_len;
if (cmd == DASD_ECKD_CCW_READ_TRACK)
memset(dst, 0, seg_len);
@@ -4839,7 +4839,7 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req)
if (private->uses_cdl == 0 || recid > 2*blk_per_trk)
ccw++;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
for (off = 0; off < bv.bv_len; off += blksize) {
/* Skip locate record. */
if (private->uses_cdl && recid <= 2*blk_per_trk)
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 3ad319aee51e..e084f4dedddd 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -501,7 +501,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp_regular(
}
recid = first_rec;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
if (dasd_page_cache) {
char *copy = kmem_cache_alloc(dasd_page_cache,
GFP_DMA | __GFP_NOWARN);
@@ -583,7 +583,7 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req)
if (private->rdc_data.mode.bits.data_chain != 0)
ccw++;
rq_for_each_segment(bv, req, iter) {
- dst = page_address(bv.bv_page) + bv.bv_offset;
+ dst = bvec_virt(&bv);
for (off = 0; off < bv.bv_len; off += blksize) {
/* Skip locate record. */
if (private->rdc_data.mode.bits.data_chain == 0)
--
2.30.2
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-08-04 10:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-04 9:56 [dm-devel] add a bvec_virt helper Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 01/15] bvec: " Christoph Hellwig
2021-08-05 6:19 ` Chaitanya Kulkarni
2021-08-06 2:38 ` Martin K. Petersen
2021-08-04 9:56 ` [dm-devel] [PATCH 02/15] block: use bvec_virt in bio_integrity_{process, free} Christoph Hellwig
2021-08-05 6:19 ` Chaitanya Kulkarni
2021-08-06 2:38 ` Martin K. Petersen
2021-08-04 9:56 ` [dm-devel] [PATCH 03/15] dm: make EBS depend on !HIGHMEM Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 04/15] dm-ebs: use bvec_virt Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 05/15] dm-integrity: " Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 06/15] squashfs: " Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 07/15] rbd: " Christoph Hellwig
2021-08-05 12:01 ` Jeff Layton
2021-08-04 9:56 ` [dm-devel] [PATCH 08/15] virtio_blk: " Christoph Hellwig
2021-08-05 14:17 ` Stefan Hajnoczi
2021-08-04 9:56 ` [dm-devel] [PATCH 09/15] bcache: " Christoph Hellwig
2021-08-04 17:05 ` Coly Li
2021-08-04 9:56 ` [dm-devel] [PATCH 10/15] sd: " Christoph Hellwig
2021-08-05 16:31 ` Bart Van Assche
2021-08-06 2:43 ` Martin K. Petersen
2021-08-04 9:56 ` [dm-devel] [PATCH 11/15] ubd: " Christoph Hellwig
2021-08-04 10:10 ` Anton Ivanov
2021-08-04 9:56 ` [dm-devel] [PATCH 12/15] ps3vram: " Christoph Hellwig
2021-08-04 9:56 ` Christoph Hellwig [this message]
2021-08-04 20:20 ` [dm-devel] [PATCH 13/15] dasd: " Stefan Haberland
2021-08-04 9:56 ` [dm-devel] [PATCH 14/15] dcssblk: " Christoph Hellwig
2021-08-04 9:56 ` [dm-devel] [PATCH 15/15] nvme: " Christoph Hellwig
2021-08-04 14:33 ` Keith Busch
2021-08-16 12:38 ` [dm-devel] add a bvec_virt helper Christoph Hellwig
2021-08-16 16:51 ` Jens Axboe
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