Re: [PATCH 10/18] vdso: make arch_setup_additional_pages wait for mmap_sem for write killable

From: kbuild test robot
Date: Mon Feb 29 2016 - 08:50:55 EST

Hi Michal,

[auto build test ERROR on next-20160229]
[also build test ERROR on v4.5-rc6]
[cannot apply to drm/drm-next drm-intel/for-linux-next v4.5-rc6 v4.5-rc5 v4.5-rc4]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

config: i386-randconfig-x004-201609 (attached as .config)
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

arch/x86/entry/vdso/vma.c: In function 'map_vdso':
>> arch/x86/entry/vdso/vma.c:177:6: error: implicit declaration of function 'down_write_killable' [-Werror=implicit-function-declaration]
if (down_write_killable(&mm->mmap_sem))
cc1: some warnings being treated as errors

vim +/down_write_killable +177 arch/x86/entry/vdso/vma.c

171 addr = vdso_addr(current->mm->start_stack,
172 image->size - image->sym_vvar_start);
173 } else {
174 addr = 0;
175 }
> 177 if (down_write_killable(&mm->mmap_sem))
178 return -EINTR;
180 addr = get_unmapped_area(NULL, addr,

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: Binary data