From 832d95b5314eea558cf4cc9ca40db10122ce8f63 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Fri, 9 Jan 2026 04:13:43 +0000 Subject: migrate: replace RMP_ flags with TTU_ flags Instead of translating between RMP_ and TTU_ flags, remove the RMP_ flags and just use the TTU_ flag space; there's plenty available. Possibly we should rename these to RMAP_ flags, and maybe even pass them in through rmap_walk_arg, but that can be done later. Link: https://lkml.kernel.org/r/20260109041345.3863089-3-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Acked-by: David Hildenbrand (Red Hat) Reviewed-by: Lorenzo Stoakes Reviewed-by: Zi Yan Cc: Alistair Popple Cc: Byungchul Park Cc: Gregory Price Cc: Jann Horn Cc: Joshua Hahn Cc: Lance Yang Cc: Liam Howlett Cc: Matthew Brost Cc: Rakie Kim Cc: Rik van Riel Cc: Vlastimil Babka Cc: Ying Huang Signed-off-by: Andrew Morton --- include/linux/rmap.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index dd764951b03d..8dc0871e5f00 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -92,6 +92,7 @@ struct anon_vma_chain { }; enum ttu_flags { + TTU_USE_SHARED_ZEROPAGE = 0x2, /* for unused pages of large folios */ TTU_SPLIT_HUGE_PMD = 0x4, /* split huge PMD if any */ TTU_IGNORE_MLOCK = 0x8, /* ignore mlock */ TTU_SYNC = 0x10, /* avoid racy checks with PVMW_SYNC */ @@ -933,12 +934,8 @@ int mapping_wrprotect_range(struct address_space *mapping, pgoff_t pgoff, int pfn_mkclean_range(unsigned long pfn, unsigned long nr_pages, pgoff_t pgoff, struct vm_area_struct *vma); -enum rmp_flags { - RMP_LOCKED = 1 << 0, - RMP_USE_SHARED_ZEROPAGE = 1 << 1, -}; - -void remove_migration_ptes(struct folio *src, struct folio *dst, int flags); +void remove_migration_ptes(struct folio *src, struct folio *dst, + enum ttu_flags flags); /* * rmap_walk_control: To control rmap traversing for specific needs -- cgit v1.2.3