| Message ID | 20210319132004.4341-6-osalvador@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Make alloc_contig_range handle Hugetlb pages | expand |
On Fri 19-03-21 14:20:04, Oscar Salvador wrote: > 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. > > Signed-off-by: Oscar Salvador <osalvador@suse.de> > Suggested-by: David Hildenbrand <david@redhat.com> > Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> > --- > mm/page_alloc.c | 6 ------ > 1 file changed, 6 deletions(-) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index ce6a14a446a4..516302b280de 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -8685,12 +8685,6 @@ static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn, > > if (PageReserved(page)) > return false; > - > - if (page_count(page) > 0) > - return false; > - > - if (PageHuge(page)) > - return false; > } > return true; > } > -- > 2.16.3
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ce6a14a446a4..516302b280de 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8685,12 +8685,6 @@ static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn, if (PageReserved(page)) return false; - - if (page_count(page) > 0) - return false; - - if (PageHuge(page)) - return false; } return true; }