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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2026-01-09 17:31:35 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-26 20:02:28 -0800 |
| commit | 9bda131c6093e9c4a8739e2eeb65ba4d5fbefc2f (patch) | |
| tree | d74129fc5f617db621c8fa4baa699196a591f44e /mm/internal.h | |
| parent | e0c1326779cc1b8e3a9e30ae273b89202ed4c82c (diff) | |
| download | linux-next-9bda131c6093e9c4a8739e2eeb65ba4d5fbefc2f.tar.gz linux-next-9bda131c6093e9c4a8739e2eeb65ba4d5fbefc2f.zip | |
mm: cma: add cma_alloc_frozen{_compound}()
Introduce cma_alloc_frozen{_compound}() helper to alloc pages without
incrementing their refcount, then convert hugetlb cma to use the
cma_alloc_frozen_compound() and cma_release_frozen() and remove the unused
cma_{alloc,free}_folio(), also move the cma_validate_zones() into
mm/internal.h since no outside user.
The set_pages_refcounted() is only called to set non-compound pages after
above changes, so remove the processing about PageHead.
Link: https://lkml.kernel.org/r/20260109093136.1491549-6-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/internal.h b/mm/internal.h index 0623b865ad1a..27509a909915 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -584,11 +584,6 @@ static inline void set_pages_refcounted(struct page *page, unsigned long nr_page { unsigned long pfn = page_to_pfn(page); - if (PageHead(page)) { - set_page_refcounted(page); - return; - } - for (; nr_pages--; pfn++) set_page_refcounted(pfn_to_page(pfn)); } @@ -1014,9 +1009,14 @@ void init_cma_reserved_pageblock(struct page *page); struct cma; #ifdef CONFIG_CMA +bool cma_validate_zones(struct cma *cma); void *cma_reserve_early(struct cma *cma, unsigned long size); void init_cma_pageblock(struct page *page); #else +static inline bool cma_validate_zones(struct cma *cma) +{ + return false; +} static inline void *cma_reserve_early(struct cma *cma, unsigned long size) { return NULL; |