On Fri, Jun 27, 2014 at 10:42 AM, Dave Hansen <dave.hansen@xxxxxxxxx> wrote: > On 06/27/2014 10:34 AM, Dave Hansen wrote: >> I'm claiming that we need COW behavior for the bounds tables, at least >> by default. If userspace knows enough about the ways that it is using >> the tables and knows how to share them, let it go to town. The kernel >> will permit this kind of usage model, but we simply won't be helping >> with the management of the tables when userspace creates them. > > Actually, this is another reason we need to mark VMAs as being > MPX-related explicitly instead of inferring it from the tables. If > userspace does something really specialized like this, the kernel does > not want to confuse these VMAs the ones it created. > Good point. --Andy -- 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>