Commit f66c9a33 authored Mar 27, 2020 by Jason Gunthorpe

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>

parent 6bfef2f9

mm/hmm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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];

Admin message