From bf5fb875b494b32ef81fdfa5530a79fc22486254 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 4 Aug 2021 11:56:32 +0200 Subject: dasd: use bvec_virt Use bvec_virt instead of open coding it. Signed-off-by: Christoph Hellwig Reviewed-by: Stefan Haberland Link: https://lore.kernel.org/r/20210804095634.460779-14-hch@lst.de Signed-off-by: Jens Axboe --- 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(-) (limited to 'drivers/s390') 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) -- cgit From 2b7a8112212afa90f36391e3ab7df531614bfb6a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 4 Aug 2021 11:56:33 +0200 Subject: dcssblk: use bvec_virt Use bvec_virt instead of open coding it. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210804095634.460779-15-hch@lst.de Signed-off-by: Jens Axboe --- drivers/s390/block/dcssblk.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 29180bdf0977..5be3d1c39a78 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -892,8 +892,7 @@ dcssblk_submit_bio(struct bio *bio) index = (bio->bi_iter.bi_sector >> 3); bio_for_each_segment(bvec, bio, iter) { - page_addr = (unsigned long) - page_address(bvec.bv_page) + bvec.bv_offset; + page_addr = (unsigned long)bvec_virt(&bvec); source_addr = dev_info->start + (index<<12) + bytes_done; if (unlikely((page_addr & 4095) != 0) || (bvec.bv_len & 4095) != 0) // More paranoia. -- cgit From 9c2b9dbafc067e173db30c4fd0636392d27944e8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 16 Aug 2021 15:19:06 +0200 Subject: block: remove alloc_disk and alloc_disk_node Most drivers should use and have been converted to use blk_alloc_disk and blk_mq_alloc_disk. Only the scsi ULPs and dasd still allocate a disk separately from the request_queue, so don't bother with convenience macros for something that should not see significant new users and remove these wrappers. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210816131910.615153-6-hch@lst.de Signed-off-by: Jens Axboe --- drivers/s390/block/dasd_genhd.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/s390') diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 493e8469893c..07a69b19dd31 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -24,6 +24,8 @@ #include "dasd_int.h" +static struct lock_class_key dasd_bio_compl_lkclass; + /* * Allocate and register gendisk structure for device. */ @@ -38,7 +40,8 @@ int dasd_gendisk_alloc(struct dasd_block *block) if (base->devindex >= DASD_PER_MAJOR) return -EBUSY; - gdp = alloc_disk(1 << DASD_PARTN_BITS); + gdp = __alloc_disk_node(1 << DASD_PARTN_BITS, NUMA_NO_NODE, + &dasd_bio_compl_lkclass); if (!gdp) return -ENOMEM; -- cgit From a58bd7683fcb60ae24c8572f932b48bc65719b7c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 16 Aug 2021 15:19:07 +0200 Subject: block: remove the minors argument to __alloc_disk_node This was a leftover from the legacy alloc_disk interface. Switch the scsi ULPs and dasd to set ->minors directly like all other drivers and remove the argument. Signed-off-by: Christoph Hellwig Reviewed-by: Stefan Haberland [dasd] Link: https://lore.kernel.org/r/20210816131910.615153-7-hch@lst.de Signed-off-by: Jens Axboe --- drivers/s390/block/dasd_genhd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 07a69b19dd31..6e44515b4d33 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -40,14 +40,14 @@ int dasd_gendisk_alloc(struct dasd_block *block) if (base->devindex >= DASD_PER_MAJOR) return -EBUSY; - gdp = __alloc_disk_node(1 << DASD_PARTN_BITS, NUMA_NO_NODE, - &dasd_bio_compl_lkclass); + gdp = __alloc_disk_node(NUMA_NO_NODE, &dasd_bio_compl_lkclass); if (!gdp) return -ENOMEM; /* Initialize gendisk structure. */ gdp->major = DASD_MAJOR; gdp->first_minor = base->devindex << DASD_PARTN_BITS; + gdp->minors = 1 << DASD_PARTN_BITS; gdp->fops = &dasd_device_operations; /* -- cgit From 4a1fa41d304c7129328d4d5c7f31715b95e23b29 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 16 Aug 2021 15:19:08 +0200 Subject: block: pass a request_queue to __blk_alloc_disk Pass in a request_queue and assign disk->queue in __blk_alloc_disk to ensure struct gendisk always has a valid ->queue pointer. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20210816131910.615153-8-hch@lst.de Signed-off-by: Jens Axboe --- drivers/s390/block/dasd_genhd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/s390') diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 6e44515b4d33..fa966e0db6ca 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -40,7 +40,8 @@ int dasd_gendisk_alloc(struct dasd_block *block) if (base->devindex >= DASD_PER_MAJOR) return -EBUSY; - gdp = __alloc_disk_node(NUMA_NO_NODE, &dasd_bio_compl_lkclass); + gdp = __alloc_disk_node(block->request_queue, NUMA_NO_NODE, + &dasd_bio_compl_lkclass); if (!gdp) return -ENOMEM; @@ -76,7 +77,6 @@ int dasd_gendisk_alloc(struct dasd_block *block) test_bit(DASD_FLAG_DEVICE_RO, &base->flags)) set_disk_ro(gdp, 1); dasd_add_link_to_gendisk(gdp, base); - gdp->queue = block->request_queue; block->gdp = gdp; set_capacity(block->gdp, 0); device_add_disk(&base->cdev->dev, block->gdp, NULL); -- cgit