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X-IronPort-AV: E=McAfee;i="6600,9927,10865"; a="471940496" X-IronPort-AV: E=Sophos;i="6.03,231,1694761200"; d="scan'208";a="471940496" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Oct 2023 00:34:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10865"; a="1087401273" X-IronPort-AV: E=Sophos;i="6.03,231,1694761200"; d="scan'208";a="1087401273" Received: from lkp-server02.sh.intel.com (HELO f64821696465) ([10.239.97.151]) by fmsmga005.fm.intel.com with ESMTP; 17 Oct 2023 00:34:21 -0700 Received: from kbuild by f64821696465 with local (Exim 4.96) (envelope-from ) id 1qseao-0009GF-0B; Tue, 17 Oct 2023 07:34:18 +0000 Date: Tue, 17 Oct 2023 15:33:51 +0800 From: kernel test robot To: Kefeng Wang , Andrew Morton Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , willy@infradead.org, linux-kernel@vger.kernel.org, ying.huang@intel.com, david@redhat.com, Zi Yan , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Kefeng Wang Subject: Re: [PATCH -next v2 17/19] mm: convert wp_page_reuse() and finish_mkwrite_fault() to take a folio Message-ID: <202310171537.XhmrkImn-lkp@intel.com> References: <20231013085603.1227349-18-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231013085603.1227349-18-wangkefeng.wang@huawei.com> X-Rspamd-Queue-Id: 596B11C0013 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: x4ryu4jim3hn5tphz8kq3rx7rcqgceoj X-HE-Tag: 1697528067-465087 X-HE-Meta: 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 RBjyLqoU lbVjWIt8C3Addb+c6z3gRiZBYiJK6Vhf4a+iqKUj7QVIA1hThXdhkCoB4fUlKsxftWosvcnugyLLOoRb9usivX1Z7YCv9PcYzSebSOowZTvAslJEr74BZZG4XQZCRTS4URpCvIgXLaQl0I/20Xk/R8HduHv08G0XFAkNu6XaVE92PcgTzuJqhZ5xTG3h6ajw+Km3/NaGIXdMGC9B+7jFQF9waHTSTONLRqepEtXRmgkt5EajZ5Gwb6UEIW9JmZ59tuIjrpHJInO2fS8c8fpxoweMRIzkqkrg7Rkb6dTlrcqa2w5/6AbCf2zQb85lYlWLumvMf2+/BKVpTbDfPBRU8H78eGXTzqfqoQFbIjVh3o0KR5Oo4OHhaRdrf4g== 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 Kefeng, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Kefeng-Wang/mm_types-add-virtual-and-_last_cpupid-into-struct-folio/20231017-121040 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20231013085603.1227349-18-wangkefeng.wang%40huawei.com patch subject: [PATCH -next v2 17/19] mm: convert wp_page_reuse() and finish_mkwrite_fault() to take a folio config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20231017/202310171537.XhmrkImn-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231017/202310171537.XhmrkImn-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/202310171537.XhmrkImn-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/memory.c:3276: warning: Function parameter or member 'folio' not described in 'finish_mkwrite_fault' vim +3276 mm/memory.c 2f38ab2c3c7fef Shachar Raindel 2015-04-14 3258 66a6197c118540 Jan Kara 2016-12-14 3259 /** 66a6197c118540 Jan Kara 2016-12-14 3260 * finish_mkwrite_fault - finish page fault for a shared mapping, making PTE 66a6197c118540 Jan Kara 2016-12-14 3261 * writeable once the page is prepared 66a6197c118540 Jan Kara 2016-12-14 3262 * 66a6197c118540 Jan Kara 2016-12-14 3263 * @vmf: structure describing the fault 66a6197c118540 Jan Kara 2016-12-14 3264 * 66a6197c118540 Jan Kara 2016-12-14 3265 * This function handles all that is needed to finish a write page fault in a 66a6197c118540 Jan Kara 2016-12-14 3266 * shared mapping due to PTE being read-only once the mapped page is prepared. a862f68a8b3600 Mike Rapoport 2019-03-05 3267 * It handles locking of PTE and modifying it. 66a6197c118540 Jan Kara 2016-12-14 3268 * 66a6197c118540 Jan Kara 2016-12-14 3269 * The function expects the page to be locked or other protection against 66a6197c118540 Jan Kara 2016-12-14 3270 * concurrent faults / writeback (such as DAX radix tree locks). a862f68a8b3600 Mike Rapoport 2019-03-05 3271 * 2797e79f1a491f Liu Xiang 2021-06-28 3272 * Return: %0 on success, %VM_FAULT_NOPAGE when PTE got changed before a862f68a8b3600 Mike Rapoport 2019-03-05 3273 * we acquired PTE lock. 66a6197c118540 Jan Kara 2016-12-14 3274 */ 60fe935fc6b035 Kefeng Wang 2023-10-13 3275 static vm_fault_t finish_mkwrite_fault(struct vm_fault *vmf, struct folio *folio) 66a6197c118540 Jan Kara 2016-12-14 @3276 { 66a6197c118540 Jan Kara 2016-12-14 3277 WARN_ON_ONCE(!(vmf->vma->vm_flags & VM_SHARED)); 66a6197c118540 Jan Kara 2016-12-14 3278 vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address, 66a6197c118540 Jan Kara 2016-12-14 3279 &vmf->ptl); 3db82b9374ca92 Hugh Dickins 2023-06-08 3280 if (!vmf->pte) 3db82b9374ca92 Hugh Dickins 2023-06-08 3281 return VM_FAULT_NOPAGE; 66a6197c118540 Jan Kara 2016-12-14 3282 /* 66a6197c118540 Jan Kara 2016-12-14 3283 * We might have raced with another page fault while we released the 66a6197c118540 Jan Kara 2016-12-14 3284 * pte_offset_map_lock. 66a6197c118540 Jan Kara 2016-12-14 3285 */ c33c794828f212 Ryan Roberts 2023-06-12 3286 if (!pte_same(ptep_get(vmf->pte), vmf->orig_pte)) { 7df676974359f9 Bibo Mao 2020-05-27 3287 update_mmu_tlb(vmf->vma, vmf->address, vmf->pte); 66a6197c118540 Jan Kara 2016-12-14 3288 pte_unmap_unlock(vmf->pte, vmf->ptl); a19e25536ed3a2 Jan Kara 2016-12-14 3289 return VM_FAULT_NOPAGE; 66a6197c118540 Jan Kara 2016-12-14 3290 } 60fe935fc6b035 Kefeng Wang 2023-10-13 3291 wp_page_reuse(vmf, folio); a19e25536ed3a2 Jan Kara 2016-12-14 3292 return 0; 66a6197c118540 Jan Kara 2016-12-14 3293 } 66a6197c118540 Jan Kara 2016-12-14 3294 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki