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X-CSE-ConnectionGUID: ltSx4iQsTcW5Lbo/dPYlaA== X-CSE-MsgGUID: cb4ClrAdS1S8xb0GHnqkLw== X-IronPort-AV: E=McAfee;i="6800,10657,11465"; a="69658301" X-IronPort-AV: E=Sophos;i="6.16,241,1744095600"; d="scan'208";a="69658301" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jun 2025 04:40:03 -0700 X-CSE-ConnectionGUID: ox07V1DyRueyaq7QBFpl7g== X-CSE-MsgGUID: y9HyWZnqRjyX6L26ZmkiUQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,241,1744095600"; d="scan'208";a="152284195" Received: from lkp-server01.sh.intel.com (HELO e8142ee1dce2) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 16 Jun 2025 04:39:58 -0700 Received: from kbuild by e8142ee1dce2 with local (Exim 4.96) (envelope-from ) id 1uR8Bv-000EzU-2M; Mon, 16 Jun 2025 11:39:55 +0000 Date: Mon, 16 Jun 2025 19:39:47 +0800 From: kernel test robot To: Ankur Arora , linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, akpm@linux-foundation.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, mjguzik@gmail.com, luto@kernel.org, acme@kernel.org, namhyung@kernel.org, tglx@linutronix.de, willy@infradead.org, jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, ankur.a.arora@oracle.com Subject: Re: [PATCH v4 13/13] x86/folio_zero_user: Add multi-page clearing Message-ID: <202506161939.YrEAfTPY-lkp@intel.com> References: <20250616052223.723982-14-ankur.a.arora@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250616052223.723982-14-ankur.a.arora@oracle.com> X-Rspamd-Queue-Id: 53A8220006 X-Rspamd-Server: rspam03 X-Rspam-User: X-Stat-Signature: 9f3374zhhoxiomxz38qec7dswicnopkf X-HE-Tag: 1750074004-8215 X-HE-Meta: U2FsdGVkX1/nm7FtChnb48axYYakxnBBsioX2MXFYucJimw2HjrakisKDgQBbUcVw76Qo7W0W/jGzZiDezAagSEWnE/FfRQoRC5Yh4DUuTUfowKeTmv3yALxa3PbWeL8Cnzoo17GB/FHKlzA/qUv8cnJD4LQBQ6MANPyyETABg8mIbOG91PGixhJLGQn1Px4prhqjrJKHurOxAvW2zJoktWDLAaBdLjlzQvTgOqymeahn8X8HkLyLEmMOTHmevjqvzrBZxS9QWAvMhvZHQUArYxjrgIdPNkUrkW4lLMvAOFpZ+zfJZRuRNNCYn3rsB74sqfNTNwRd9PKHuAjIDcK4VCLfnbFVP08l2kadneb/qZ13gh7FBcxjV6oaf1N7qYTZDhq9R6r6iB2VVN5JX4ZfcUYs3L4nRvjsOKz24FQR93ErQ8mKbKLiLj7MSK2nqJv36JwjhTyCG0GYNWn80xt1WVs2D/MQK5zHgkyYsfR88TLXLH3YGklSvMrnXAcnz5HtpP34L1oxNj9inZ+NgRZ5rB6dNIAaqgvG/aQ+uuHt+sHQKnHV+XJgytN6Emq1gKIrTkeEZlUSLaLx4q+g53CklmUWKetawfAw1OxAuX+vpBgRlQUZ5K2+TX8W9A3e/jw6V9Jv7Q5P1OJzH6IT4tZdLD1wNpu7tEBcBZUhS8q/O4il5aw7daspFUMea0EdlI5pGCx8LC3huE8dK2GNXvj7+cKR1i7g94NHknUHCXp3+JksdvCyrIIo1df8Xvl8CNLChbhnfT2y15Cie0+ojdSi1Gf23FBC3oeA0h+Aa+/OQPqEJFzh0g2W0UjUbGwdGDBLh0e4f3o4DR3IGBZcskcg+0cixOsBhdhpqjcXe0HsOQRAl9pw2PMeD3/Li04ffL641Ut4i1g8C7+cWdRAWu6kK56u5iP2XkweKFaFL8xodskK85Zrgh7xh3d1u2p4dgKMZUxYGIjzmfsbD7kN11 hnI9cdcZ 3dSWapaml7atXVdK9AOb5y3oJokNErcCuAO2aH1ICFr22H5NhapL1bAzQyr5sLo//u1WGB9y/EuJyn+YGnxtN33aX/jzaWOdpFPkEBuAxVzR99Iw5gnem75BNQAA5se3vblHLnEGL5kYtVDzsxa3osWpw9D1F994MNxr16jixJfS/2Kui/AZ3uGoXojP+F+1OxHfIa+hrruWLpTim5/04Kb2/SEDy7qUuUIYbP0Li3/CZo8jTL0jBse3+pQAogbl84h+rjF3UrN8e01Gb8+3h1UKVIh0rA30vsyEE4HEJSGAdUQ3dVDQSVVxarLn6G9KIsC3fuoqldq6EKxoiG/GEDdb+E/YJEnK0ttF8RlFwOLPCGDH0+0L5w6jkpJJtXk8DQv/H0fCdGEWeajDyMEmhlYDIngn12gHgkh6LV2HCN6d+Rcs= 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: List-Subscribe: List-Unsubscribe: Hi Ankur, kernel test robot noticed the following build warnings: [auto build test WARNING on perf-tools-next/perf-tools-next] [also build test WARNING on tip/perf/core perf-tools/perf-tools linus/master v6.16-rc2 next-20250616] [cannot apply to acme/perf/core] [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/Ankur-Arora/perf-bench-mem-Remove-repetition-around-time-measurement/20250616-132651 base: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next patch link: https://lore.kernel.org/r/20250616052223.723982-14-ankur.a.arora%40oracle.com patch subject: [PATCH v4 13/13] x86/folio_zero_user: Add multi-page clearing config: x86_64-buildonly-randconfig-003-20250616 (https://download.01.org/0day-ci/archive/20250616/202506161939.YrEAfTPY-lkp@intel.com/config) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) rustc: rustc 1.78.0 (9b00956e5 2024-04-29) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250616/202506161939.YrEAfTPY-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/202506161939.YrEAfTPY-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/mm/memory.c:61:6: warning: no previous prototype for function 'folio_zero_user' [-Wmissing-prototypes] 61 | void folio_zero_user(struct folio *folio, unsigned long addr_hint) | ^ arch/x86/mm/memory.c:61:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 61 | void folio_zero_user(struct folio *folio, unsigned long addr_hint) | ^ | static 1 warning generated. vim +/folio_zero_user +61 arch/x86/mm/memory.c 39 40 /* 41 * folio_zero_user() - multi-page clearing. 42 * 43 * @folio: hugepage folio 44 * @addr_hint: faulting address (if any) 45 * 46 * Overrides common code folio_zero_user(). This version takes advantage of 47 * the fact that string instructions in clear_pages() are more performant 48 * on larger extents compared to the usual page-at-a-time clearing. 49 * 50 * Clearing of 2MB pages is split in three parts: pages in the immediate 51 * locality of the faulting page, and its left, right regions; with the local 52 * neighbourhood cleared last in order to keep cache lines of the target 53 * region hot. 54 * 55 * For GB pages, there is no expectation of cache locality so just do a 56 * straight zero. 57 * 58 * Note that the folio is fully allocated already so we don't do any exception 59 * handling. 60 */ > 61 void folio_zero_user(struct folio *folio, unsigned long addr_hint) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki