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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2025-08-05 18:22:57 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-13 16:55:08 -0700 |
| commit | 89ef6ad6fa849b780b5a5caae9068261603e1738 (patch) | |
| tree | ba997137205f5b1d27770d9db898ae0598602048 /include | |
| parent | slab: use memdesc_nid() (diff) | |
| download | linux-89ef6ad6fa849b780b5a5caae9068261603e1738.tar.gz linux-89ef6ad6fa849b780b5a5caae9068261603e1738.zip | |
mm: introduce memdesc_is_zone_device()
Remove the conversion from folio to page in folio_is_zone_device() by
introducing memdesc_is_zone_device() which takes a memdesc_flags_t from
either a page or a folio.
Link: https://lkml.kernel.org/r/20250805172307.1302730-8-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmzone.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 80a3b6642603..fe13ad175fed 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1200,14 +1200,14 @@ static inline enum zone_type folio_zonenum(const struct folio *folio) } #ifdef CONFIG_ZONE_DEVICE -static inline bool is_zone_device_page(const struct page *page) +static inline bool memdesc_is_zone_device(memdesc_flags_t mdf) { - return page_zonenum(page) == ZONE_DEVICE; + return memdesc_zonenum(mdf) == ZONE_DEVICE; } static inline struct dev_pagemap *page_pgmap(const struct page *page) { - VM_WARN_ON_ONCE_PAGE(!is_zone_device_page(page), page); + VM_WARN_ON_ONCE_PAGE(!memdesc_is_zone_device(page->flags), page); return page_folio(page)->pgmap; } @@ -1222,9 +1222,9 @@ static inline struct dev_pagemap *page_pgmap(const struct page *page) static inline bool zone_device_pages_have_same_pgmap(const struct page *a, const struct page *b) { - if (is_zone_device_page(a) != is_zone_device_page(b)) + if (memdesc_is_zone_device(a->flags) != memdesc_is_zone_device(b->flags)) return false; - if (!is_zone_device_page(a)) + if (!memdesc_is_zone_device(a->flags)) return true; return page_pgmap(a) == page_pgmap(b); } @@ -1232,7 +1232,7 @@ static inline bool zone_device_pages_have_same_pgmap(const struct page *a, extern void memmap_init_zone_device(struct zone *, unsigned long, unsigned long, struct dev_pagemap *); #else -static inline bool is_zone_device_page(const struct page *page) +static inline bool memdesc_is_zone_device(memdesc_flags_t mdf) { return false; } @@ -1247,9 +1247,14 @@ static inline struct dev_pagemap *page_pgmap(const struct page *page) } #endif +static inline bool is_zone_device_page(const struct page *page) +{ + return memdesc_is_zone_device(page->flags); +} + static inline bool folio_is_zone_device(const struct folio *folio) { - return is_zone_device_page(&folio->page); + return memdesc_is_zone_device(folio->flags); } static inline bool is_zone_movable_page(const struct page *page) |