Christoph Lameter wrote: > On Mon, 14 Oct 2013, Kirill A. Shutemov wrote: > > > > > > Could you make the check a CONFIG option? CONFIG_PTLOCK_DOES_NOT_FIT_IN_PAGE_STRUCT or > > > > > so? > > > > > > > > No. We will have to track what affects sizeof(spinlock_t) manually. > > > > Not a fun and error prune. > > > > > > You can generate a config option depending on the size of the object via > > > Kbuild. Kbuild will determine the setting before building the kernel as a > > > whole by runing some small C program. > > > > I don't think it's any better than what we have there now. > > Well with the CONFIG options we can then create macros etc that handle > things differently depending on the ptl being in the page or not. Feel free to propose a patch. I don't see much point. -- Kirill A. Shutemov -- 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>