diff options
| author | Keith Busch <keith.busch@intel.com> | 2015-11-28 15:41:02 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-12-22 09:38:33 -0700 |
| commit | 53029b0441bbd263dbb2ee6429572b1732dad4de (patch) | |
| tree | 28c6524a7fc5c56c019835d12c16c3ef2baca51b /drivers/nvme | |
| parent | 92f7a1624bbc2361b96db81de89aee1baae40da9 (diff) | |
| download | op-kernel-dev-53029b0441bbd263dbb2ee6429572b1732dad4de.zip op-kernel-dev-53029b0441bbd263dbb2ee6429572b1732dad4de.tar.gz | |
NVMe: Remove device management handles on remove
We don't want to allow new references to open on a device that is
removed. This ties the lifetime of these handles to the physical device's
presence rather than to the open reference count.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/host/core.c | 13 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 1 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 1 |
3 files changed, 11 insertions, 4 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 96e0532..25cb192 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1200,17 +1200,22 @@ static void nvme_release_instance(struct nvme_ctrl *ctrl) spin_unlock(&dev_list_lock); } -static void nvme_free_ctrl(struct kref *kref) -{ - struct nvme_ctrl *ctrl = container_of(kref, struct nvme_ctrl, kref); +void nvme_uninit_ctrl(struct nvme_ctrl *ctrl) + { + device_remove_file(ctrl->device, &dev_attr_reset_controller); + device_destroy(nvme_class, MKDEV(nvme_char_major, ctrl->instance)); spin_lock(&dev_list_lock); list_del(&ctrl->node); spin_unlock(&dev_list_lock); +} + +static void nvme_free_ctrl(struct kref *kref) +{ + struct nvme_ctrl *ctrl = container_of(kref, struct nvme_ctrl, kref); put_device(ctrl->device); nvme_release_instance(ctrl); - device_destroy(nvme_class, MKDEV(nvme_char_major, ctrl->instance)); ctrl->ops->free_ctrl(ctrl); } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 2965c46..aa4b42e 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -221,6 +221,7 @@ int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap); int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl); int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev, const struct nvme_ctrl_ops *ops, unsigned long quirks); +void nvme_uninit_ctrl(struct nvme_ctrl *ctrl); void nvme_put_ctrl(struct nvme_ctrl *ctrl); int nvme_init_identify(struct nvme_ctrl *ctrl); diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index a909a8b..c83f0d8 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2373,6 +2373,7 @@ static void nvme_remove(struct pci_dev *pdev) flush_work(&dev->reset_work); flush_work(&dev->scan_work); nvme_remove_namespaces(&dev->ctrl); + nvme_uninit_ctrl(&dev->ctrl); nvme_dev_shutdown(dev); nvme_dev_remove_admin(dev); nvme_free_queues(dev, 0); |
