On 2/27/20 10:32 PM, Rik van Riel wrote: > The code to implement THP migrations already exists, and the code > for CMA to clear out a region of memory already exists. > > Only a few small tweaks are needed to allow CMA to move THP memory > when attempting an allocation from alloc_contig_range. > > With these changes, migrating THPs from a CMA area works when > allocating a 1GB hugepage from CMA memory. > > Signed-off-by: Rik van Riel <riel@xxxxxxxxxxx> > Reviewed-by: Zi Yan <ziy@xxxxxxxxxx> With the followup fix, Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx> Thanks.