On 12/24/2015 07:59 PM, Dan Williams wrote: > A dax-huge-page mapping while it uses some thp helpers is ultimately not a > transparent huge page. The distinction is especially important in the > get_user_pages() path. pmd_devmap() is used to distinguish dax-pmds from > pmd_huge() and pmd_trans_huge() which have slightly different semantics. > > Explicitly mark the pmd_trans_huge() helpers that dax needs by adding > pmd_devmap() checks. > > Cc: Dave Hansen <dave@xxxxxxxx> > Cc: Mel Gorman <mgorman@xxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Reported-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx> > Reported-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > Reported-by: Sasha Levin <sasha.levin@xxxxxxxxxx> > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> The issue that I've reported and Kirill sent for isn't fixed for me, so either the bug isn't really within this patch, or it wasn't addressed correctly. Thanks, Sasha -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>