On Fri, 2012-10-26 at 15:54 +0300, Kirill A. Shutemov wrote: > From: "Kirill A. Shutemov" <[email protected]> > > We check if the pmd entry is the same as on pmd_trans_huge() in > handle_mm_fault(). That's enough. > > Signed-off-by: Kirill A. Shutemov <[email protected]>
Ah indeed, Will mentioned something like this on IRC as well, I hadn't gotten around to looking at it -- now have, thanks! Acked-by: Peter Zijlstra <[email protected]> That said, where in handle_mm_fault() do we wait for a split to complete? We have a pmd_trans_huge() && !pmd_trans_splitting(), so a fault on a currently splitting pmd will fall through. Is it the return from the fault on unlikely(pmd_trans_huge()) ? I'm probably missing something obvious.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
