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| author | Muchun Song <songmuchun@bytedance.com> | 2026-09-10 14:32:53 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-10-06 17:38:52 -0700 |
| commit | 4d012c702c6896e7f7a6dbd2bdc678f1a2cfeb1d (patch) | |
| tree | 111ccb68f09c355cc807924efade079197c1deec /include/linux | |
| parent | 7d55d0a1187dc37f6e37d925efe79b02d3a27e8f (diff) | |
| download | linux-4d012c702c6896e7f7a6dbd2bdc678f1a2cfeb1d.tar.gz linux-4d012c702c6896e7f7a6dbd2bdc678f1a2cfeb1d.zip | |
mm/hugetlb: remove HUGE_BOOTMEM_HVO
The HUGE_BOOTMEM_HVO flag tracked whether a bootmem huge page had already
gone through the old early vmemmap optimization path.
Now that HugeTLB uses section-based vmemmap optimization, that state is
already reflected in the compound page order stored in section metadata.
Remove HUGE_BOOTMEM_HVO and its helper, and use the section state directly
when deciding whether to mark a folio as vmemmap-optimized.
Link: https://lore.kernel.org/20260910063256.64386-15-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Qi Zheng <qi.zheng@linux.dev>
Cc: David Hildenbrand (Arm) <david@kernel.org>
Cc: David Laight <david.laight.linux@gmail.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hugetlb.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index fe28f98e1b22..3559041a5a57 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -675,9 +675,8 @@ struct hstate { char name[HSTATE_NAME_LEN]; }; -#define HUGE_BOOTMEM_HVO 0x0001 -#define HUGE_BOOTMEM_ZONES_VALID 0x0002 -#define HUGE_BOOTMEM_CMA 0x0004 +#define HUGE_BOOTMEM_ZONES_VALID BIT(0) +#define HUGE_BOOTMEM_CMA BIT(1) int isolate_or_dissolve_huge_folio(struct folio *folio, struct list_head *list); int replace_free_hugepage_folios(unsigned long start_pfn, unsigned long end_pfn); |