[PATCH hmm 6/6] mm/hmm: use device_private_entry_to_pfn()

Jason Gunthorpe jgg at ziepe.ca
Fri Mar 20 16:49:05 UTC 2020


From: Jason Gunthorpe <jgg at mellanox.com>

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.

Signed-off-by: Jason Gunthorpe <jgg at mellanox.com>
---
 mm/hmm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/hmm.c b/mm/hmm.c
index a09b4908e9c81a..fd9ee2b5fd9989 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -259,8 +259,8 @@ static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr,
 		 * the PFN even if not present.
 		 */
 		if (hmm_is_device_private_entry(range, entry)) {
-			*pfn = hmm_device_entry_from_pfn(range,
-					    swp_offset(entry));
+			*pfn = hmm_device_entry_from_pfn(
+				range, 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];
-- 
2.25.1



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