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authorMatthew Wilcox (Oracle) <willy@infradead.org>2022-02-03 17:06:08 +0300
committerMatthew Wilcox (Oracle) <willy@infradead.org>2022-03-21 19:59:02 +0300
commiteed05e54d275b3cfc5d8c79843c5276a5878e94a (patch)
treeec7411a6713c845154731e0cd66a55adc501e792 /include
parentf087b903fc2e4975bff9742a66ee7a837a2f545b (diff)
downloadlinux-eed05e54d275b3cfc5d8c79843c5276a5878e94a.tar.xz
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')
-rw-r--r--include/linux/rmap.h16
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. */