Hi Kirill, [auto build test ERROR on linus/master] [also build test ERROR on v4.14-rc2] [cannot apply to next-20170929] [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/Kirill-A-Shutemov/mm-Account-pud-page-tables/20170926-031536 config: powerpc-powernv_defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All errors (new ones prefixed by >>): mm/memory.c: In function '__pud_alloc': >> mm/memory.c:4134:20: error: 'pud' undeclared (first use in this function) if (!pgd_present(*pud)) { ^~~ mm/memory.c:4134:20: note: each undeclared identifier is reported only once for each function it appears in vim +/pud +4134 mm/memory.c 4112 4113 #ifndef __PAGETABLE_PUD_FOLDED 4114 /* 4115 * Allocate page upper directory. 4116 * We've already handled the fast-path in-line. 4117 */ 4118 int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address) 4119 { 4120 pud_t *new = pud_alloc_one(mm, address); 4121 if (!new) 4122 return -ENOMEM; 4123 4124 smp_wmb(); /* See comment in __pte_alloc */ 4125 4126 spin_lock(&mm->page_table_lock); 4127 #ifndef __ARCH_HAS_5LEVEL_HACK 4128 if (!p4d_present(*p4d)) { 4129 mm_inc_nr_puds(mm); 4130 p4d_populate(mm, p4d, new); 4131 } else /* Another has populated it */ 4132 pud_free(mm, new); 4133 #else > 4134 if (!pgd_present(*pud)) { 4135 mm_inc_nr_puds(mm); 4136 pgd_populate(mm, p4d, new); 4137 } else /* Another has populated it */ 4138 pud_free(mm, new); 4139 #endif /* __ARCH_HAS_5LEVEL_HACK */ 4140 spin_unlock(&mm->page_table_lock); 4141 return 0; 4142 } 4143 #endif /* __PAGETABLE_PUD_FOLDED */ 4144 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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