diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-11-25 21:01:37 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-13 22:40:31 -0800 |
| commit | ee66e9c34fd3aeab3a7c2cda300f852aa5363609 (patch) | |
| tree | 2956ea2b84e82d13eba3699d7e33c93bc8228389 /mm/page_alloc.c | |
| parent | 8fd10a892a8db797fffb59a9a60bce23a56eef46 (diff) | |
mm/page_alloc: move set_page_refcounted() to callers of prep_new_page()
In preparation for allocating frozen pages, stop initialising the page
refcount in prep_new_page().
Link: https://lkml.kernel.org/r/20241125210149.2976098-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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: Miaohe Lin <linmiaohe@huawei.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a3072047c705..08cc1e0bd950 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1563,7 +1563,6 @@ 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); @@ -3474,6 +3473,7 @@ try_this_zone: gfp_mask, alloc_flags, ac->migratetype); if (page) { prep_new_page(page, order, gfp_mask, alloc_flags); + set_page_refcounted(page); /* * If this is a high-order atomic allocation then check @@ -3698,8 +3698,10 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, count_vm_event(COMPACTSTALL); /* Prep a captured page if available */ - if (page) + if (page) { prep_new_page(page, order, gfp_mask, alloc_flags); + set_page_refcounted(page); + } /* Try get a page from the freelist if available */ if (!page) @@ -4678,6 +4680,7 @@ retry_this_zone: nr_account++; prep_new_page(page, 0, gfp, 0); + set_page_refcounted(page); if (page_list) list_add(&page->lru, page_list); else @@ -6500,6 +6503,7 @@ int alloc_contig_range_noprof(unsigned long start, unsigned long end, check_new_pages(head, order); prep_new_page(head, order, gfp_mask, 0); + set_page_refcounted(head); } else { ret = -EINVAL; WARN(true, "PFN range: requested [%lu, %lu), allocated [%lu, %lu)\n", |