Hi Rik, Thank you for the patch! Yet something to improve:
[auto build test ERROR on v4.17] [also build test ERROR on next-20180620] [cannot apply to tip/x86/core linus/master mmotm/master v4.18-rc1] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Rik-van-Riel/x86-tlb-mm-make-lazy-TLB-mode-even-lazier/20180621-045620 config: x86_64-rhel (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): arch/x86/xen/mmu_pv.c: In function 'drop_mm_ref_this_cpu': >> arch/x86/xen/mmu_pv.c:987:3: error: implicit declaration of function >> 'leave_mm' [-Werror=implicit-function-declaration] leave_mm(smp_processor_id()); ^~~~~~~~ cc1: some warnings being treated as errors -- In file included from arch/x86/include/asm/fixmap.h:19:0, from arch/x86/include/asm/apic.h:10, from arch/x86/include/asm/smp.h:13, from arch/x86/include/asm/mmzone_64.h:11, from arch/x86/include/asm/mmzone.h:5, from include/linux/mmzone.h:911, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers/acpi/processor_idle.c:28: drivers/acpi/processor_idle.c: In function 'acpi_idle_enter_bm': >> arch/x86/include/asm/acpi.h:164:28: error: implicit declaration of function >> 'leave_mm' [-Werror=implicit-function-declaration] #define acpi_unlazy_tlb(x) leave_mm(x) ^ >> drivers/acpi/processor_idle.c:717:2: note: in expansion of macro >> 'acpi_unlazy_tlb' acpi_unlazy_tlb(smp_processor_id()); ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from arch/x86/include/asm/fixmap.h:19:0, from arch/x86/include/asm/apic.h:10, from arch/x86/include/asm/smp.h:13, from arch/x86/include/asm/mmzone_64.h:11, from arch/x86/include/asm/mmzone.h:5, from include/linux/mmzone.h:911, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers//acpi/processor_idle.c:28: drivers//acpi/processor_idle.c: In function 'acpi_idle_enter_bm': >> arch/x86/include/asm/acpi.h:164:28: error: implicit declaration of function >> 'leave_mm' [-Werror=implicit-function-declaration] #define acpi_unlazy_tlb(x) leave_mm(x) ^ drivers//acpi/processor_idle.c:717:2: note: in expansion of macro 'acpi_unlazy_tlb' acpi_unlazy_tlb(smp_processor_id()); ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/leave_mm +987 arch/x86/xen/mmu_pv.c 7e0563de Vitaly Kuznetsov 2017-04-04 981 3d28ebce Andy Lutomirski 2017-05-28 982 static void drop_mm_ref_this_cpu(void *info) 7e0563de Vitaly Kuznetsov 2017-04-04 983 { 7e0563de Vitaly Kuznetsov 2017-04-04 984 struct mm_struct *mm = info; 7e0563de Vitaly Kuznetsov 2017-04-04 985 3d28ebce Andy Lutomirski 2017-05-28 986 if (this_cpu_read(cpu_tlbstate.loaded_mm) == mm) 7e0563de Vitaly Kuznetsov 2017-04-04 @987 leave_mm(smp_processor_id()); 7e0563de Vitaly Kuznetsov 2017-04-04 988 3d28ebce Andy Lutomirski 2017-05-28 989 /* 3d28ebce Andy Lutomirski 2017-05-28 990 * If this cpu still has a stale cr3 reference, then make sure 3d28ebce Andy Lutomirski 2017-05-28 991 * it has been flushed. 3d28ebce Andy Lutomirski 2017-05-28 992 */ 7e0563de Vitaly Kuznetsov 2017-04-04 993 if (this_cpu_read(xen_current_cr3) == __pa(mm->pgd)) 3d28ebce Andy Lutomirski 2017-05-28 994 xen_mc_flush(); 7e0563de Vitaly Kuznetsov 2017-04-04 995 } 7e0563de Vitaly Kuznetsov 2017-04-04 996 :::::: The code at line 987 was first introduced by commit :::::: 7e0563dea9c4e62297846359186c597e7231912d x86/xen: split off mmu_pv.c :::::: TO: Vitaly Kuznetsov <vkuzn...@redhat.com> :::::: CC: Juergen Gross <jgr...@suse.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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