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nvme-pci: move more teardown work to nvme_remove

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nvme_dbbuf_dma_free frees dma coherent memory, so it must not be called
after ->remove has returned.  Fortunately there is no way to use it
after shutdown as no more I/O is possible so it can be moved.  Similarly
the iod_mempool can't be used for a device kept alive after shutdown, so
move it next to freeing the PRP pools.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by Gerd Bayer <gbayer@linxu.ibm.com>
This commit is contained in:
Christoph Hellwig 2022-11-08 09:11:13 +01:00
parent 96ef1be536
commit c11b7716d6
1 changed files with 2 additions and 2 deletions
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4
drivers/nvme/host/pci.c
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@ -2773,9 +2773,7 @@ static void nvme_pci_free_ctrl(struct nvme_ctrl *ctrl)
{
struct nvme_dev *dev = to_nvme_dev(ctrl);
nvme_dbbuf_dma_free(dev);
nvme_free_tagset(dev);
mempool_destroy(dev->iod_mempool);
put_device(dev->dev);
kfree(dev->queues);
kfree(dev);
@ -3227,7 +3225,9 @@ static void nvme_remove(struct pci_dev *pdev)
nvme_dev_disable(dev, true);
nvme_free_host_mem(dev);
nvme_dev_remove_admin(dev);
nvme_dbbuf_dma_free(dev);
nvme_free_queues(dev, 0);
mempool_destroy(dev->iod_mempool);
nvme_release_prp_pools(dev);
nvme_dev_unmap(dev);
nvme_uninit_ctrl(&dev->ctrl);