diff options
| -rw-r--r-- | block/bio.c | 33 | ||||
| -rw-r--r-- | drivers/nvme/target/zns.c | 21 | ||||
| -rw-r--r-- | include/linux/bio.h | 2 |
3 files changed, 13 insertions, 43 deletions
diff --git a/block/bio.c b/block/bio.c index 6a60d62a529d..daceb0a5c1d7 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1065,39 +1065,6 @@ int bio_add_pc_page(struct request_queue *q, struct bio *bio, EXPORT_SYMBOL(bio_add_pc_page); /** - * bio_add_zone_append_page - attempt to add page to zone-append bio - * @bio: destination bio - * @page: page to add - * @len: vec entry length - * @offset: vec entry offset - * - * Attempt to add a page to the bio_vec maplist of a bio that will be submitted - * for a zone-append request. This can fail for a number of reasons, such as the - * bio being full or the target block device is not a zoned block device or - * other limitations of the target block device. The target block device must - * allow bio's up to PAGE_SIZE, so it is always possible to add a single page - * to an empty bio. - * - * Returns: number of bytes added to the bio, or 0 in case of a failure. - */ -int bio_add_zone_append_page(struct bio *bio, struct page *page, - unsigned int len, unsigned int offset) -{ - struct request_queue *q = bdev_get_queue(bio->bi_bdev); - bool same_page = false; - - if (WARN_ON_ONCE(bio_op(bio) != REQ_OP_ZONE_APPEND)) - return 0; - - if (WARN_ON_ONCE(!bdev_is_zoned(bio->bi_bdev))) - return 0; - - return bio_add_hw_page(q, bio, page, len, offset, - queue_max_zone_append_sectors(q), &same_page); -} -EXPORT_SYMBOL_GPL(bio_add_zone_append_page); - -/** * __bio_add_page - add page(s) to a bio in a new segment * @bio: destination bio * @page: start page to add diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index af9e13be7678..3aef35b05111 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -537,6 +537,7 @@ void nvmet_bdev_execute_zone_append(struct nvmet_req *req) u16 status = NVME_SC_SUCCESS; unsigned int total_len = 0; struct scatterlist *sg; + u32 data_len = nvmet_rw_data_len(req); struct bio *bio; int sg_cnt; @@ -544,6 +545,13 @@ void nvmet_bdev_execute_zone_append(struct nvmet_req *req) if (!nvmet_check_transfer_len(req, nvmet_rw_data_len(req))) return; + if (data_len > + bdev_max_zone_append_sectors(req->ns->bdev) << SECTOR_SHIFT) { + req->error_loc = offsetof(struct nvme_rw_command, length); + status = NVME_SC_INVALID_FIELD | NVME_STATUS_DNR; + goto out; + } + if (!req->sg_cnt) { nvmet_req_complete(req, 0); return; @@ -576,20 +584,17 @@ void nvmet_bdev_execute_zone_append(struct nvmet_req *req) bio->bi_opf |= REQ_FUA; for_each_sg(req->sg, sg, req->sg_cnt, sg_cnt) { - struct page *p = sg_page(sg); - unsigned int l = sg->length; - unsigned int o = sg->offset; - unsigned int ret; + unsigned int len = sg->length; - ret = bio_add_zone_append_page(bio, p, l, o); - if (ret != sg->length) { + if (bio_add_pc_page(bdev_get_queue(bio->bi_bdev), bio, + sg_page(sg), len, sg->offset) != len) { status = NVME_SC_INTERNAL; goto out_put_bio; } - total_len += sg->length; + total_len += len; } - if (total_len != nvmet_rw_data_len(req)) { + if (total_len != data_len) { status = NVME_SC_INTERNAL | NVME_STATUS_DNR; goto out_put_bio; } diff --git a/include/linux/bio.h b/include/linux/bio.h index faceadb040f9..4a1bf43ca53d 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -418,8 +418,6 @@ bool __must_check bio_add_folio(struct bio *bio, struct folio *folio, size_t len, size_t off); extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, unsigned int, unsigned int); -int bio_add_zone_append_page(struct bio *bio, struct page *page, - unsigned int len, unsigned int offset); void __bio_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int off); void bio_add_folio_nofail(struct bio *bio, struct folio *folio, size_t len, |