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| author | Muchun Song <songmuchun@bytedance.com> | 2026-06-12 11:59:00 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-07-02 23:27:00 -0700 |
| commit | 1b2839f22f564e2f9ff10a608725d7f13678cb3d (patch) | |
| tree | 5aa5beccb1f055c545debf441ac9fb4d34b5b349 /include | |
| parent | 4d413c22ff070ece2acfcbb47d196f69e5e2d424 (diff) | |
| download | linux-next-1b2839f22f564e2f9ff10a608725d7f13678cb3d.tar.gz linux-next-1b2839f22f564e2f9ff10a608725d7f13678cb3d.zip | |
mm/hugetlb: remove obsolete bootmem cross-zone checks
Bootmem gigantic HugeTLB pages used to be validated again during
gather_bootmem_prealloc_node() and any cross-zone pages were discarded
there.
That validation is no longer needed. Cross-zone bootmem gigantic pages
are now detected during allocation and freed before they reach the later
bootmem gathering path, so the remaining pages are already zone-valid.
Remove the obsolete cross-zone validation, invalid-page freeing, and the
associated discarded-page accounting.
Link: https://lore.kernel.org/20260612035903.2468601-17-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Frank van der Linden <fvdl@google.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Oscar Salvador (SUSE) <osalvador@kernel.org>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/hugetlb.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 4579271d2aab..7bc3cafa7f61 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -679,9 +679,6 @@ struct hstate { #define HUGE_BOOTMEM_ZONES_VALID 0x0002 #define HUGE_BOOTMEM_CMA 0x0004 -struct huge_bootmem_page; -bool hugetlb_bootmem_page_zones_valid(int nid, struct huge_bootmem_page *m); - 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); void wait_for_freed_hugetlb_folios(void); |