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| author | Oscar Salvador <osalvador@suse.de> | 2021-05-05 03:35:33 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 20:27:22 +0200 |
| commit | eb14d4eefdc4f0051a63973124f431798e16a8b2 (patch) | |
| tree | 882020053ee16096f10ee0655c116cb89ea84558 /arch/x86 | |
| parent | mm: make alloc_contig_range handle in-use hugetlb pages (diff) | |
| download | linux-eb14d4eefdc4f0051a63973124f431798e16a8b2.tar.xz linux-eb14d4eefdc4f0051a63973124f431798e16a8b2.zip | |
mm,page_alloc: drop unnecessary checks from pfn_range_valid_contig
pfn_range_valid_contig() bails out when it finds an in-use page or a
hugetlb page, among other things. We can drop the in-use page check since
__alloc_contig_pages can migrate away those pages, and the hugetlb page
check can go too since isolate_migratepages_range is now capable of
dealing with hugetlb pages. Either way, those checks are racy so let the
end function handle it when the time comes.
Link: https://lkml.kernel.org/r/20210419075413.1064-8-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Suggested-by: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
0 files changed, 0 insertions, 0 deletions