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[192.55.52.151]) by mx.google.com with ESMTPS id c72si21789379pfb.93.2019.05.21.01.01.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 May 2019 01:01:04 -0700 (PDT) Received-SPF: pass (google.com: domain of lkp@intel.com designates 192.55.52.151 as permitted sender) client-ip=192.55.52.151; Authentication-Results: mx.google.com; spf=pass (google.com: domain of lkp@intel.com designates 192.55.52.151 as permitted sender) smtp.mailfrom=lkp@intel.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 May 2019 01:00:59 -0700 X-ExtLoop1: 1 Received: from lkp-server01.sh.intel.com (HELO lkp-server01) ([10.239.97.150]) by orsmga002.jf.intel.com with ESMTP; 21 May 2019 01:00:56 -0700 Received: from kbuild by lkp-server01 with local (Exim 4.89) (envelope-from ) id 1hSzhg-0004xJ-9C; Tue, 21 May 2019 16:00:56 +0800 Date: Tue, 21 May 2019 16:00:10 +0800 From: kbuild test robot To: Nicolas Boichat Cc: kbuild-all@01.org, Andrew Morton , David Rientjes , Nicolas Boichat , Michal Hocko , Joe Perches , Greg Kroah-Hartman , linux-mm@kvack.org, Akinobu Mita , Pekka Enberg , Mel Gorman , linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/failslab: By default, do not fail allocations with direct reclaim only Message-ID: <201905211524.RpQYbGWw%lkp@intel.com> References: <20190520044951.248096-1-drinkcat@chromium.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190520044951.248096-1-drinkcat@chromium.org> X-Patchwork-Hint: ignore User-Agent: Mutt/1.5.23 (2014-03-12) 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 Nicolas, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.2-rc1 next-20190520] [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/Nicolas-Boichat/mm-failslab-By-default-do-not-fail-allocations-with-direct-reclaim-only/20190521-045221 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot sparse warnings: (new ones prefixed by >>) >> mm/failslab.c:27:26: sparse: sparse: restricted gfp_t degrades to integer vim +27 mm/failslab.c 16 17 bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags) 18 { 19 /* No fault-injection for bootstrap cache */ 20 if (unlikely(s == kmem_cache)) 21 return false; 22 23 if (gfpflags & __GFP_NOFAIL) 24 return false; 25 26 if (failslab.ignore_gfp_reclaim && > 27 (gfpflags & ___GFP_DIRECT_RECLAIM)) 28 return false; 29 30 if (failslab.cache_filter && !(s->flags & SLAB_FAILSLAB)) 31 return false; 32 33 return should_fail(&failslab.attr, s->object_size); 34 } 35 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation