diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2025-08-05 20:22:54 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-09-14 02:55:08 +0300 |
| commit | 4aff03fbe508780394039053bebfc4f4800b286e (patch) | |
| tree | a25ebe3c11c01c96f2d7e977a07e9621dfeb030a /include/linux | |
| parent | eb00fdd84ddabd6948d26595bb5e8c1302220d37 (diff) | |
| download | linux-4aff03fbe508780394039053bebfc4f4800b286e.tar.xz | |
mm: introduce memdesc_zonenum()
Remove a conversion from folio to page by passing the folio->flags (which
are a copy of the page->flags) to the new memdesc_zonenum() function.
Link: https://lkml.kernel.org/r/20250805172307.1302730-5-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/linux')
| -rw-r--r-- | include/linux/mmzone.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 990560cd99ee..80a3b6642603 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1183,15 +1183,20 @@ static inline bool zone_is_empty(struct zone *zone) #define KASAN_TAG_MASK ((1UL << KASAN_TAG_WIDTH) - 1) #define ZONEID_MASK ((1UL << ZONEID_SHIFT) - 1) +static inline enum zone_type memdesc_zonenum(memdesc_flags_t flags) +{ + ASSERT_EXCLUSIVE_BITS(flags.f, ZONES_MASK << ZONES_PGSHIFT); + return (flags.f >> ZONES_PGSHIFT) & ZONES_MASK; +} + static inline enum zone_type page_zonenum(const struct page *page) { - ASSERT_EXCLUSIVE_BITS(page->flags, ZONES_MASK << ZONES_PGSHIFT); - return (page->flags.f >> ZONES_PGSHIFT) & ZONES_MASK; + return memdesc_zonenum(page->flags); } static inline enum zone_type folio_zonenum(const struct folio *folio) { - return page_zonenum(&folio->page); + return memdesc_zonenum(folio->flags); } #ifdef CONFIG_ZONE_DEVICE |