From: Christoph Hellwig hch@lst.de
mainline inclusion from mainline-v5.15-rc1 commit 5f432cceb3e9de5223fa50d882c4a43cab39a3ee category: bugfix bugzilla: 188733, https://gitee.com/openeuler/kernel/issues/I81XCK
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Switch to use the blk_mq_alloc_disk helper for allocating the request_queue and gendisk.
Signed-off-by: Christoph Hellwig hch@lst.de Reviewed-by: Keith Busch kbusch@kernel.org Reviewed-by: Sagi Grimberg sagi@grimberg.me Link: https://lore.kernel.org/r/20210816131910.615153-2-hch@lst.de Signed-off-by: Jens Axboe axboe@kernel.dk conflict: drivers/nvme/host/core.c Signed-off-by: Zhong Jinghua zhongjinghua@huawei.com --- drivers/nvme/host/core.c | 33 +++++++++++++-------------------- 1 file changed, 13 insertions(+), 20 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 96eed00b1f4a..7a5faa6950d6 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3904,9 +3904,14 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, if (!ns) goto out_free_id;
- ns->queue = blk_mq_init_queue(ctrl->tagset); - if (IS_ERR(ns->queue)) + disk = blk_mq_alloc_disk(ctrl->tagset, ns); + if (IS_ERR(disk)) goto out_free_ns; + disk->fops = &nvme_fops; + disk->private_data = ns; + + ns->disk = disk; + ns->queue = disk->queue;
if (ctrl->opts && ctrl->opts->data_digest) blk_queue_flag_set(QUEUE_FLAG_STABLE_WRITES, ns->queue); @@ -3915,34 +3920,25 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, if (ctrl->ops->flags & NVME_F_PCI_P2PDMA) blk_queue_flag_set(QUEUE_FLAG_PCI_P2PDMA, ns->queue);
- ns->queue->queuedata = ns; ns->ctrl = ctrl; kref_init(&ns->kref);
ret = nvme_init_ns_head(ns, nsid, ids, id->nmic & NVME_NS_NMIC_SHARED); if (ret) - goto out_free_queue; + goto out_cleanup_disk; nvme_set_disk_name(disk_name, ns, ctrl, &flags);
- disk = alloc_disk_node(0, node); - if (!disk) - goto out_unlink_ns; - - disk->fops = &nvme_fops; - disk->private_data = ns; - disk->queue = ns->queue; disk->flags = flags; memcpy(disk->disk_name, disk_name, DISK_NAME_LEN); - ns->disk = disk;
if (nvme_update_ns_info(ns, id)) - goto out_put_disk; + goto out_unlink_ns;
if ((ctrl->quirks & NVME_QUIRK_LIGHTNVM) && id->vs[0] == 0x1) { ret = nvme_nvm_register(ns, disk_name, node); if (ret) { dev_warn(ctrl->device, "LightNVM init failure\n"); - goto out_put_disk; + goto out_unlink_ns; } }
@@ -3958,10 +3954,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, kfree(id);
return; - out_put_disk: - /* prevent double queue cleanup */ - ns->disk->queue = NULL; - put_disk(ns->disk); + out_unlink_ns: mutex_lock(&ctrl->subsys->lock); list_del_rcu(&ns->siblings); @@ -3969,8 +3962,8 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, list_del_init(&ns->head->entry); mutex_unlock(&ctrl->subsys->lock); nvme_put_ns_head(ns->head); - out_free_queue: - blk_cleanup_queue(ns->queue); + out_cleanup_disk: + blk_cleanup_disk(disk); out_free_ns: kfree(ns); out_free_id: