Hi Kirill, [auto build test ERROR on mmotm/master] [also build test ERROR on v4.10-rc5 next-20170124] [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/Fix-few-rmap-related-THP-bugs/20170125-081918 base: git://git.cmpxchg.org/linux-mmotm.git master config: i386-defconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from arch/x86/include/asm/pgtable.h:471:0, from include/linux/mm.h:68, from include/linux/ring_buffer.h:5, from include/linux/trace_events.h:5, from include/trace/syscall.h:6, from include/linux/syscalls.h:81, from init/main.c:18: include/linux/rmap.h: In function 'page_check_walk_done': >> arch/x86/include/asm/pgtable_32.h:53:24: error: implicit declaration of function 'kunmap_atomic' [-Werror=implicit-function-declaration] #define pte_unmap(pte) kunmap_atomic((pte)) ^ >> include/linux/rmap.h:253:3: note: in expansion of macro 'pte_unmap' pte_unmap(pcw->pte); ^~~~~~~~~ cc1: some warnings being treated as errors vim +/pte_unmap +253 include/linux/rmap.h 237 /* Look for migarion entries rather than present ptes */ 238 #define PAGE_CHECK_WALK_MIGRATION (1 << 1) 239 240 struct page_check_walk { 241 struct page *page; 242 struct vm_area_struct *vma; 243 unsigned long address; 244 pmd_t *pmd; 245 pte_t *pte; 246 spinlock_t *ptl; 247 unsigned int flags; 248 }; 249 250 static inline void page_check_walk_done(struct page_check_walk *pcw) 251 { 252 if (pcw->pte) > 253 pte_unmap(pcw->pte); 254 if (pcw->ptl) 255 spin_unlock(pcw->ptl); 256 } 257 258 bool __page_check_walk(struct page_check_walk *pcw); 259 260 /** 261 * page_check_walk - check if @pcw->page is mapped in @pcw->vma at @pcw->address --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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