diff options
| author | David Hildenbrand <david@redhat.com> | 2024-12-03 11:20:50 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-01-13 22:40:44 -0800 |
| commit | dd467f92db404ca2e061889ad1b6dd6221390222 (patch) | |
| tree | 930abe7f42e2973e7f172497af7de974027124c9 /mm/page_alloc.c | |
| parent | bef5418d1f3dee46bee1198d0c4a9c7c63fc2514 (diff) | |
mm/memory_hotplug: move debug_pagealloc_map_pages() into online_pages_range()
In the near future, we want to have a single way to handover PageOffline
pages to the buddy, whereby they could have:
(a) Never been exposed to the buddy before: kept PageOffline when onlining
the memory block.
(b) Been allocated from the buddy, for example using
alloc_contig_range() to then be set PageOffline,
Let's start by making generic_online_page()->__free_pages_core() less
special compared to ordinary page freeing (e.g., free_contig_range()),
and perform the debug_pagealloc_map_pages() call unconditionally, even
when the online callback might decide to keep the pages offline.
All pages are already initialized with PageOffline, so nobody touches them
either way.
Link: https://lkml.kernel.org/r/20241203102050.223318-1-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a887ba2cc91d..75de3711784e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1295,12 +1295,6 @@ void __meminit __free_pages_core(struct page *page, unsigned int order, set_page_count(p, 0); } - /* - * Freeing the page with debug_pagealloc enabled will try to - * unmap it; some archs don't like double-unmappings, so - * map it first. - */ - debug_pagealloc_map_pages(page, nr_pages); adjust_managed_page_count(page, nr_pages); } else { for (loop = 0; loop < nr_pages; loop++, p++) { |