* Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> wrote: > Thanks, everyone for all the reviews thus far. I hope I managed to > address all the feedback given so far, except for the TODOs of > course. This is a pretty minor update compared to v1->v2. > > These patches are all on this tip branch: > > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=WIP.x86/mm Note that on top of latest -tip the bzImage build fails with: arch/x86/boot/compressed/pagetable.o: In function `kernel_ident_mapping_init': pagetable.c:(.text+0x31b): undefined reference to `kaiser_enabled' arch/x86/boot/compressed/Makefile:109: recipe for target 'arch/x86/boot/compressed/vmlinux' failed that's I think because the early boot code shares some code via kernel_ident_mapping_init() et al, and that code grew a new KAISER runtime variable which isn't present in the special early-boot environment. I.e. something like the (totally untested) patch below should do the trick. Thanks, Ingo --- arch/x86/boot/compressed/pagetable.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: tip/arch/x86/boot/compressed/pagetable.c =================================================================== --- tip.orig/arch/x86/boot/compressed/pagetable.c +++ tip/arch/x86/boot/compressed/pagetable.c @@ -36,6 +36,12 @@ /* Used by pgtable.h asm code to force instruction serialization. */ unsigned long __force_order; +/* + * We share the kernel_ident_mapping_init(), but the early boot version does not need + * the Kaiser-logic: + */ +int kaiser_enabled = 0; + /* Used to track our page table allocation area. */ struct alloc_pgt_data { unsigned char *pgt_buf; -- 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>
