diff options
| author | Matthew Wilcox (Oracle) | 2022-02-03 09:06:08 -0500 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) | 2022-03-21 12:59:02 -0400 |
| commit | eed05e54d275b3cfc5d8c79843c5276a5878e94a (patch) | |
| tree | ec7411a6713c845154731e0cd66a55adc501e792 /include/linux/rmap.h | |
| parent | f087b903fc2e4975bff9742a66ee7a837a2f545b (diff) | |
mm: Add DEFINE_PAGE_VMA_WALK and DEFINE_FOLIO_VMA_WALK
Instead of declaring a struct page_vma_mapped_walk directly,
use these helpers to allow us to transition to a PFN approach in the
following patches.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'include/linux/rmap.h')
| -rw-r--r-- | include/linux/rmap.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index ac29b076082b..0d894a2bfaa1 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -214,6 +214,22 @@ struct page_vma_mapped_walk { unsigned int flags; }; +#define DEFINE_PAGE_VMA_WALK(name, _page, _vma, _address, _flags) \ + struct page_vma_mapped_walk name = { \ + .page = _page, \ + .vma = _vma, \ + .address = _address, \ + .flags = _flags, \ + } + +#define DEFINE_FOLIO_VMA_WALK(name, _folio, _vma, _address, _flags) \ + struct page_vma_mapped_walk name = { \ + .page = &_folio->page, \ + .vma = _vma, \ + .address = _address, \ + .flags = _flags, \ + } + static inline void page_vma_mapped_walk_done(struct page_vma_mapped_walk *pvmw) { /* HugeTLB pte is set to the relevant page table entry without pte_mapped. */ |