On 2/22/21 5:51 AM, Oscar Salvador wrote: > alloc_contig_range() will fail if it finds a HugeTLB page within the range, > without a chance to handle them. Since HugeTLB pages can be migrated as any > LRU or Movable page, it does not make sense to bail out without trying. > Enable the interface to recognize in-use HugeTLB pages so we can migrate > them, and have much better chances to succeed the call. > > Signed-off-by: Oscar Salvador <osalvador@xxxxxxx> > --- > include/linux/hugetlb.h | 5 +++-- > mm/compaction.c | 12 +++++++++++- > mm/hugetlb.c | 21 +++++++++++++++++---- > mm/vmscan.c | 5 +++-- > 4 files changed, 34 insertions(+), 9 deletions(-) Thanks, Changes look good. I like the simple retry one time for pages which may go from free to in use. Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> BTW, This series will need to be rebased on latest which has hugetlb page flag changes. Should be as simple as: s/PageHugeFreed/HPageFreed/ -- Mike Kravetz
