On 7/8/25 23:41, David Hildenbrand wrote: > On 06.03.25 05:42, Balbir Singh wrote: >> Add flags to mark zone device migration pages. >> >> MIGRATE_VMA_SELECT_COMPOUND will be used to select THP pages during >> migrate_vma_setup() and MIGRATE_PFN_COMPOUND will make migrating >> device pages as compound pages during device pfn migration. >> >> Signed-off-by: Balbir Singh <[email protected]> >> --- >> include/linux/migrate.h | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/include/linux/migrate.h b/include/linux/migrate.h >> index 61899ec7a9a3..b5e4f51e64c7 100644 >> --- a/include/linux/migrate.h >> +++ b/include/linux/migrate.h >> @@ -167,6 +167,7 @@ static inline int migrate_misplaced_folio(struct folio >> *folio, int node) >> #define MIGRATE_PFN_VALID (1UL << 0) >> #define MIGRATE_PFN_MIGRATE (1UL << 1) >> #define MIGRATE_PFN_WRITE (1UL << 3) >> +#define MIGRATE_PFN_COMPOUND (1UL << 4) >> #define MIGRATE_PFN_SHIFT 6 >> static inline struct page *migrate_pfn_to_page(unsigned long mpfn) >> @@ -185,6 +186,7 @@ enum migrate_vma_direction { >> MIGRATE_VMA_SELECT_SYSTEM = 1 << 0, >> MIGRATE_VMA_SELECT_DEVICE_PRIVATE = 1 << 1, >> MIGRATE_VMA_SELECT_DEVICE_COHERENT = 1 << 2, >> + MIGRATE_VMA_SELECT_COMPOUND = 1 << 3, >> }; >> struct migrate_vma { > > Squash that into the patch where it is actually used. >
Will do, Thanks, Balbir Singh
