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NVMe: Fix FS mount issue (hot-remove followed by hot-add)

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After Hot-remove of a device with a mounted partition,
when the device is hot-added again, the new node reappears
as nvme0n1. Mounting this new node fails with the error:

mount: mount /dev/nvme0n1p1 on /mnt failed: File exists.

The old nodes's FS entries still exist and the kernel can't re-create
procfs and sysfs entries for the new node with the same name.
The patch fixes this issue.

Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Indraneel M <indraneel.m@samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Indraneel M 2014-12-11 08:24:18 -07:00 committed by Jens Axboe
parent d8ead9b763
commit 285dffc910
1 changed files with 1 additions and 1 deletions
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2
drivers/block/nvme-core.c
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@ -2493,6 +2493,7 @@ static void nvme_free_dev(struct kref *kref)
pci_dev_put(dev->pci_dev);
nvme_free_namespaces(dev);
nvme_release_instance(dev);
blk_mq_free_tag_set(&dev->tagset);
kfree(dev->queues);
kfree(dev->entry);
@ -2780,7 +2781,6 @@ static void nvme_remove(struct pci_dev *pdev)
nvme_dev_remove_admin(dev);
nvme_free_queues(dev, 0);
nvme_free_admin_tags(dev);
nvme_release_instance(dev);
nvme_release_prp_pools(dev);
kref_put(&dev->kref, nvme_free_dev);
}