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mm/page_alloc: move set_page_refcounted() to callers of post_alloc_hook()

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In preparation for allocating frozen pages, stop initialising the page
refcount in post_alloc_hook().

Link: https://lkml.kernel.org/r/20241125210149.2976098-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2024-11-25 21:01:36 +00:00
committed by Andrew Morton
parent 520128a1d1
commit 8fd10a892a
3 changed files with 5 additions and 3 deletions
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3
mm/page_alloc.c
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@@ -1508,7 +1508,6 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
int i;
set_page_private(page, 0);
set_page_refcounted(page);
arch_alloc_page(page, order);
debug_pagealloc_map_pages(page, 1 << order);
@@ -1564,6 +1563,7 @@ static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags
unsigned int alloc_flags)
{
post_alloc_hook(page, order, gfp_flags);
set_page_refcounted(page);
if (order && (gfp_flags & __GFP_COMP))
prep_compound_page(page, order);
@@ -6360,6 +6360,7 @@ static void split_free_pages(struct list_head *list)
int i;
post_alloc_hook(page, order, __GFP_MOVABLE);
set_page_refcounted(page);
if (!order)
continue;