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authorJens Axboe <axboe@kernel.dk>2022-07-14 10:29:56 -0600
committerJens Axboe <axboe@kernel.dk>2022-07-14 10:29:56 -0600
commitc24b06e1c237ee2bf3245786b0ee844ddd1610be (patch)
treef49e504cba085c2c50d241abc54d573c413294d3
parent6b0de7d0f3285df849be2b3cc94fc3a0a31987bf (diff)
parent6961b5e02876b3b47f030a1f1ee8fd3e631ac270 (diff)
Merge tag 'nvme-5.19-2022-07-14' of git://git.infradead.org/nvme into block-5.19
Pull NVMe fixes from Christoph: "nvme fixes for Linux 5.19 - fix a block device naming collision (Israel Rukshin) - fix freeze accounting for PCI error handling (Keith Busch)" * tag 'nvme-5.19-2022-07-14' of git://git.infradead.org/nvme: nvme: fix block device naming collision nvme-pci: fix freeze accounting for error handling
-rw-r--r--drivers/nvme/host/core.c6
-rw-r--r--drivers/nvme/host/pci.c9
2 files changed, 10 insertions, 5 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index ec6ac298d8de..6a12a906a11e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -3786,7 +3786,7 @@ static int nvme_add_ns_cdev(struct nvme_ns *ns)
}
static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
- unsigned nsid, struct nvme_ns_ids *ids)
+ unsigned nsid, struct nvme_ns_ids *ids, bool is_shared)
{
struct nvme_ns_head *head;
size_t size = sizeof(*head);
@@ -3810,6 +3810,7 @@ static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
head->subsys = ctrl->subsys;
head->ns_id = nsid;
head->ids = *ids;
+ head->shared = is_shared;
kref_init(&head->ref);
if (head->ids.csi) {
@@ -3891,12 +3892,11 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
nsid);
goto out_unlock;
}
- head = nvme_alloc_ns_head(ctrl, nsid, ids);
+ head = nvme_alloc_ns_head(ctrl, nsid, ids, is_shared);
if (IS_ERR(head)) {
ret = PTR_ERR(head);
goto out_unlock;
}
- head->shared = is_shared;
} else {
ret = -EINVAL;
if (!is_shared || !head->shared) {
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 193b44755662..58c72d55769a 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2690,8 +2690,13 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
struct pci_dev *pdev = to_pci_dev(dev->dev);
mutex_lock(&dev->shutdown_lock);
- if (pci_device_is_present(pdev) && pci_is_enabled(pdev)) {
- u32 csts = readl(dev->bar + NVME_REG_CSTS);
+ if (pci_is_enabled(pdev)) {
+ u32 csts;
+
+ if (pci_device_is_present(pdev))
+ csts = readl(dev->bar + NVME_REG_CSTS);
+ else
+ csts = ~0;
if (dev->ctrl.state == NVME_CTRL_LIVE ||
dev->ctrl.state == NVME_CTRL_RESETTING) {