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mm/hmm: use device_private_entry_to_pfn() 

swp_offset() should not be called directly, the wrappers are supposed to
abstract away the encoding of the device_private specific information in
the swap entry.

Link: https://lore.kernel.org/r/20200327200021.29372-7-jgg@ziepe.ca
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2020-03-27 17:00:18 -03:00
parent 6bfef2f919
commit f66c9a33ae
1 changed files with 1 additions and 1 deletions
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2
mm/hmm.c
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@ -267,7 +267,7 @@ static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr,
*/ */
if (hmm_is_device_private_entry(range, entry)) { if (hmm_is_device_private_entry(range, entry)) {
*pfn = hmm_device_entry_from_pfn(range, *pfn = hmm_device_entry_from_pfn(range,
swp_offset(entry)); device_private_entry_to_pfn(entry));
*pfn |= range->flags[HMM_PFN_VALID]; *pfn |= range->flags[HMM_PFN_VALID];
if (is_write_device_private_entry(entry)) if (is_write_device_private_entry(entry))
*pfn |= range->flags[HMM_PFN_WRITE]; *pfn |= range->flags[HMM_PFN_WRITE];