github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

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

Browse Source 
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>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-11-25 21:01:37 +00:00 committed by Andrew Morton
parent 8fd10a892a
commit ee66e9c34f
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
mm/page_alloc.c
View File

@ -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 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags,
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 @@ unsigned long alloc_pages_bulk_noprof(gfp_t gfp, int preferred_nid,
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",