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R . Silva" , "Liam R . Howlett" , Matthew Wilcox , =?utf-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Mike Rapoport , Nadav Amit , Pasha Tatashin , Paul Gofman , Peter Xu , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Yang Shi , Yun Zhou , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: Re: fs/proc/task_mmu: Implement IOCTL for efficient page table scanning Message-ID: <202307211337.5dwCMeHb-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Queue-Id: 388442000C X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: war5wak8317hjqct1x9kogwxjz19ydg7 X-HE-Tag: 1689918248-422937 X-HE-Meta: U2FsdGVkX1/Is1Piu2oh3FvitdCAOKEO/a8uZg6kkRuqYoGHu6dUDOZGpyx1Lb7jVnhGCAkQDaYS8WXy1BBkpBB2kZubvS+/VPxzHURh6WReW4vAhq/gR3NDY7MhrYILPse2GPbJyYezxgMRaJMUEU1tHZKDQoRknIMdiUNYJKMk+jZFzvIIPGqINLXBurXkAxUYylj3UkeJflnrFGWqoDMLv+UI3GdZbNSifkkOIsxHeB4Sz3TRbUVfEYe02dxCSt2CbvYIFPXSXvwvSJdFTA3jHtl0kPCBd1OAaOW65Wbsaj5QGwz51RPq8CzHM9a9/6xPWBGpeYP37RuVirvMQoDaW0j8arzxuIO5L5ZKoLk1M1jhaRGaFRugi8uU56OPTHTGj9y0iarfphR61oxQdMLo0KlZdHnrPWsOSm6jf+AsZHUy8xC+ebzJqQkjC+NnlDS5e228yVj6wj9dzE+d0zl4cpVQx/Rwzy/d3orqJMwjAjq4BNogh9GULIUk1GE5K603658ULWAkQPFvjImV/yk8uyXS2T2o+3JsK3CsL3oTtVvSkHgLJfU2Gj4lXV9/00mh5vCzIRWNcwDZnLZWpE75YD2yHysid7rfYCt7dgvtDuWWeJg/hM9pvUu7qYOlP4eG5iKdAGbKaTv4izee8clGqvRcWqb6G3pS4T/sfCXWoa/WJjq/+L9j3fGu/+V8dZb7JhctnPyxcdcaZjqQK2goBH46+NpxXkEu17VfBYjQBoVlQkvneeXP8ge6hl0+jGE2Hx11M088cG40tZ7rRqq0aYKg5RTpUt1vCnkKKmOCO1jTnWvIT8RjsifXf1y/3DLfFm7ZqgG2tHmlA40KAKq7rusohD0GkImCKu8bm0uObRje1pNAKMjzhznqPrn09iJ3vnNuKLc01K3XgT/pzY1kS5yUQYtTUF1v0WLYF/1Rw7rVy4xwXRltCn6bsbz+qIAqIqbyjdJ3Sw9eVr0 vaBRPGEZ e7UX9VtvAO3ZmRCNIbrU3nA/taVLn56M7doDHQ/wIZ+icZ0a1TbKB0hspk2ozOVWT7TPhUcSyfxHPnvmPJdTGEfzCQTDDqx59BHVYV7/Sethz3izaIM8ogcQOVT8Qa6lruTXvc3jzOqxAWGvW11e+1yxH1PX+dQXwdBZE3wZ96wYYkp4GNRk4fyGn2aEeqbkJ50Jv7vXmzCv8QOQcmLD+xmxhhcWjlZS0f/2+eRmEQF2XwlGZ7CSBe116H5PIHBWtbF6QZIQphkBtI0QCWbDRAuRydGjYqblCG6oDj8hKv9CiYtAZbEpvX8n6zSV/KOL8WjcwpXuKDJzZJWvUGuwj/aQvl2KR10BqHBn+19NjdpGw5xd0SKgGhuSwYsMIcEZdfoybP5Updpy84QU2AWLCHvkp5J4M5E7T5+9m X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Michał, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.5-rc2 next-20230720] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Micha-Miros-aw/Re-fs-proc-task_mmu-Implement-IOCTL-for-efficient-page-table-scanning/20230721-033050 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/a0b5c6776b2ed91f78a7575649f8b100e58bd3a9.1689881078.git.mirq-linux%40rere.qmqm.pl patch subject: Re: fs/proc/task_mmu: Implement IOCTL for efficient page table scanning config: i386-randconfig-r022-20230720 (https://download.01.org/0day-ci/archive/20230721/202307211337.5dwCMeHb-lkp@intel.com/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce: (https://download.01.org/0day-ci/archive/20230721/202307211337.5dwCMeHb-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202307211337.5dwCMeHb-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/proc/task_mmu.c:1921:6: error: call to undeclared function 'userfaultfd_wp_async'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] if (userfaultfd_wp_async(vma) && userfaultfd_wp_use_markers(vma)) ^ >> fs/proc/task_mmu.c:2200:12: error: call to undeclared function 'uffd_wp_range'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] int err = uffd_wp_range(vma, addr, end - addr, true); ^ 2 errors generated. vim +/userfaultfd_wp_async +1921 fs/proc/task_mmu.c 1913 1914 static int pagemap_scan_test_walk(unsigned long start, unsigned long end, 1915 struct mm_walk *walk) 1916 { 1917 struct pagemap_scan_private *p = walk->private; 1918 struct vm_area_struct *vma = walk->vma; 1919 unsigned long vma_category = 0; 1920 > 1921 if (userfaultfd_wp_async(vma) && userfaultfd_wp_use_markers(vma)) 1922 vma_category |= PAGE_IS_WPASYNC; 1923 else if (p->arg.flags & PM_SCAN_CHECK_WPASYNC) 1924 return -EPERM; 1925 1926 if (vma->vm_flags & VM_PFNMAP) 1927 return 1; 1928 1929 if (!pagemap_scan_is_interesting_vma(vma_category, p)) 1930 return 1; 1931 1932 p->cur_vma_category = vma_category; 1933 return 0; 1934 } 1935 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki