Il 12/09/2014 23:19, Ard Biesheuvel ha scritto: > On 12 September 2014 23:14, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: >> On Fri, 12 Sep 2014 22:17:23 +0200 Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: >> >>> In order to make the static inline function is_zero_pfn() callable by >>> modules, export its symbol dependencies 'zero_pfn' and (for s390 and >>> mips) 'zero_page_mask'. >> >> So hexagon and score get the export if/when needed. >> > > Exactly. > >>> We need this for KVM, as CONFIG_KVM is a tristate for all supported >>> architectures except ARM and arm64, and testing a pfn whether it refers >>> to the zero page is required to correctly distinguish the zero page >>> from other special RAM ranges that may also have the PG_reserved bit >>> set, but need to be treated as MMIO memory. >>> >>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> >>> --- >>> arch/mips/mm/init.c | 1 + >>> arch/s390/mm/init.c | 1 + >>> mm/memory.c | 2 ++ >> >> Looks OK to me. Please include the patch in whichever tree is is that >> needs it, and merge it up via that tree. >> > > Thanks. > > @Paolo: could you please take this (with Andrew's ack), and put it > before the patch you took earlier today? Yes, will do. Paolo -- 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>