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/[email protected] Reviewed-by: Ralph Campbell <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Tested-by: Ralph Campbell <[email protected]> Signed-off-by: Jason Gunthorpe <[email protected]>
chewitt · Mar 30, 2020 · f66c9a3 · f66c9a3
1 parent 6bfef2f
commit f66c9a3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/hmm.c b/mm/hmm.c
@@ -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)) {
 			*pfn = hmm_device_entry_from_pfn(range,
-					    swp_offset(entry));
+				device_private_entry_to_pfn(entry));
 			*pfn |= range->flags[HMM_PFN_VALID];
 			if (is_write_device_private_entry(entry))
 				*pfn |= range->flags[HMM_PFN_WRITE];