[PATCH v1 22/29] mm/page-flags: rename PAGE_MAPPING_MOVABLE to PAGE_MAPPING_ANON_KSM
From: David Hildenbrand <hidden>
Date: 2025-06-30 13:01:25
Also in:
linux-doc, linux-fsdevel, linux-mm, lkml, virtualization
Subsystem:
the rest · Maintainer:
Linus Torvalds
KSM is the only remaining user, let's rename the flag. While at it, adjust to remaining page -> folio in the doc. Reviewed-by: Zi Yan <ziy@nvidia.com> Signed-off-by: David Hildenbrand <redacted> --- include/linux/page-flags.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index aa48b05536bca..abed972e902e1 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h@@ -697,10 +697,10 @@ PAGEFLAG_FALSE(VmemmapSelfHosted, vmemmap_self_hosted) * folio->mapping points to its anon_vma, not to a struct address_space; * with the PAGE_MAPPING_ANON bit set to distinguish it. See rmap.h. * - * On an anonymous page in a VM_MERGEABLE area, if CONFIG_KSM is enabled, - * the PAGE_MAPPING_MOVABLE bit may be set along with the PAGE_MAPPING_ANON + * On an anonymous folio in a VM_MERGEABLE area, if CONFIG_KSM is enabled, + * the PAGE_MAPPING_ANON_KSM bit may be set along with the PAGE_MAPPING_ANON * bit; and then folio->mapping points, not to an anon_vma, but to a private - * structure which KSM associates with that merged page. See ksm.h. + * structure which KSM associates with that merged folio. See ksm.h. * * Please note that, confusingly, "folio_mapping" refers to the inode * address_space which maps the folio from disk; whereas "folio_mapped"
@@ -714,9 +714,9 @@ PAGEFLAG_FALSE(VmemmapSelfHosted, vmemmap_self_hosted) * See mm/slab.h. */ #define PAGE_MAPPING_ANON 0x1 -#define PAGE_MAPPING_MOVABLE 0x2 -#define PAGE_MAPPING_KSM (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE) -#define PAGE_MAPPING_FLAGS (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE) +#define PAGE_MAPPING_ANON_KSM 0x2 +#define PAGE_MAPPING_KSM (PAGE_MAPPING_ANON | PAGE_MAPPING_ANON_KSM) +#define PAGE_MAPPING_FLAGS (PAGE_MAPPING_ANON | PAGE_MAPPING_ANON_KSM) static __always_inline bool folio_mapping_flags(const struct folio *folio) {
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2.49.0