> On Jul 12, 2017, at 10:28 AM, David Miller <da...@davemloft.net> wrote: > > From: Qing Zhao <qing.z...@oracle.com> > Date: Wed, 12 Jul 2017 08:49:52 -0500 > >> and it also clearly mentioned that “specially aligned memory might >> use this constraint”. > > It guarantees the achieve the opposite of what you are trying to do. > > That is, it can be used to guarantee that something is aligned to a > multiple of X or greater.
so, the spill code can guarantee to provide a special alignment for multiple of X or greater? > > What you want is to know that something is guaranteed to be > aligned less strongly that X. And that invariant is not > provided for. are you implying that special_memory_constraint is NOT for my current purpose? thanks. Qing