From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7525F347BB9; Tue, 3 Feb 2026 12:55:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770123314; cv=none; b=uOgHIXMp3uGjJy0MeppMEjdoALc4VHAwMNaPyPQlG5F9nTJtiDTmhidzThtRyBcYV+DXP7HDLLqxEL5WGA+znHjooXAGJZ1445happZS3RrZC15m7zpAtArt4tS1Dxvs1wjHf9lKgvuHpkXDRxK26kQ7fZq1HpycoGK9zVEKNz0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770123314; c=relaxed/simple; bh=Na/why9iHiWKs67S5MJ07c25PosqUuD+BRi9i7cq2/E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=skt3MV5Eo7f3Mh5ApiClogY0gyNTBvYdPy8QbYqc8b4JHQpE4o00mwLOfdVTULZsDZAKDqHczkSizerC10BNuNyF/5cqueq2W1tv2S9gP7xGO8tLVySULFLJb0ndQp6DNkgMFAE0gBl5OuJ9xDYrHiX1tnn2UeSJQ/Hk2L44PHg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=KjSyIvg9; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="KjSyIvg9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770123312; x=1801659312; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Na/why9iHiWKs67S5MJ07c25PosqUuD+BRi9i7cq2/E=; b=KjSyIvg98eE7pMN+u4Qns/sOIwxZCQggevqcbNQJ3LTbmZosoIBrmJON zxziNUwlokNLwq74Ki4ppeax2XnIBU6GLqDkbCSyy4ns7nju6JJwtvxgR tPBYR4Q8FYT8OQ+BVjYvhgiptrD9YKqNlNDqVmOBmii6EDOhYjIUdYsV+ O35rS5E8Z7HuRXWzRHouRjtSJkpSJBEPhGFwZB82puzbwr2mHN2yw02RA 3zV19poeUYmq7EOLXiHDy8nXMFxVrgPeP3+tod3izyOW1481R+Oj6V1VU ueX5o/vFh6JVpClxlu63bbtVweRp6ddTYZzSViSy3C6q/Ssia1E9M6XY7 w==; X-CSE-ConnectionGUID: YG33P0UGRUiM/isZG0Ev1A== X-CSE-MsgGUID: Zz6j3yK4SqCijJrNVPsf2A== X-IronPort-AV: E=McAfee;i="6800,10657,11690"; a="73889319" X-IronPort-AV: E=Sophos;i="6.21,270,1763452800"; d="scan'208";a="73889319" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2026 04:55:11 -0800 X-CSE-ConnectionGUID: 3MmsR2SMTQ6Ng3f6/XKHBQ== X-CSE-MsgGUID: kaQZblzASvaS46PoC7D7AA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,270,1763452800"; d="scan'208";a="209631416" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa009.jf.intel.com with ESMTP; 03 Feb 2026 04:55:09 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vnFvv-00000000gfI-09xk; Tue, 03 Feb 2026 12:55:07 +0000 Date: Tue, 3 Feb 2026 20:54:16 +0800 From: kernel test robot To: Yu Kuai , tj@kernel.org, josef@toxicpanda.com, axboe@kernel.dk Cc: oe-kbuild-all@lists.linux.dev, cgroups@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai@fnnas.com, zhengqixing@huawei.com, mkoutny@suse.com, hch@infradead.org, ming.lei@redhat.com, nilay@linux.ibm.com Subject: Re: [PATCH v2 2/7] bfq: protect q->blkg_list iteration in bfq_end_wr_async() with blkcg_mutex Message-ID: <202602032018.BRG7c7LT-lkp@intel.com> References: <20260203080602.726505-3-yukuai@fnnas.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260203080602.726505-3-yukuai@fnnas.com> Hi Yu, kernel test robot noticed the following build errors: [auto build test ERROR on axboe/for-next] [also build test ERROR on linus/master v6.19-rc8 next-20260202] [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/Yu-Kuai/blk-cgroup-protect-q-blkg_list-iteration-in-blkg_destroy_all-with-blkcg_mutex/20260203-161356 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next patch link: https://lore.kernel.org/r/20260203080602.726505-3-yukuai%40fnnas.com patch subject: [PATCH v2 2/7] bfq: protect q->blkg_list iteration in bfq_end_wr_async() with blkcg_mutex config: i386-buildonly-randconfig-002-20260203 (https://download.01.org/0day-ci/archive/20260203/202602032018.BRG7c7LT-lkp@intel.com/config) compiler: gcc-13 (Debian 13.3.0-16) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260203/202602032018.BRG7c7LT-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/202602032018.BRG7c7LT-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from include/linux/seqlock.h:19, from include/linux/mmzone.h:17, from include/linux/gfp.h:7, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:18, from block/bfq-iosched.c:116: block/bfq-iosched.c: In function 'bfq_end_wr': >> block/bfq-iosched.c:2648:32: error: 'struct request_queue' has no member named 'blkcg_mutex' 2648 | mutex_lock(&bfqd->queue->blkcg_mutex); | ^~ include/linux/mutex.h:193:44: note: in definition of macro 'mutex_lock' 193 | #define mutex_lock(lock) mutex_lock_nested(lock, 0) | ^~~~ block/bfq-iosched.c:2660:34: error: 'struct request_queue' has no member named 'blkcg_mutex' 2660 | mutex_unlock(&bfqd->queue->blkcg_mutex); | ^~ vim +2648 block/bfq-iosched.c 2642 2643 static void bfq_end_wr(struct bfq_data *bfqd) 2644 { 2645 struct bfq_queue *bfqq; 2646 int i; 2647 > 2648 mutex_lock(&bfqd->queue->blkcg_mutex); 2649 spin_lock_irq(&bfqd->lock); 2650 2651 for (i = 0; i < bfqd->num_actuators; i++) { 2652 list_for_each_entry(bfqq, &bfqd->active_list[i], bfqq_list) 2653 bfq_bfqq_end_wr(bfqq); 2654 } 2655 list_for_each_entry(bfqq, &bfqd->idle_list, bfqq_list) 2656 bfq_bfqq_end_wr(bfqq); 2657 bfq_end_wr_async(bfqd); 2658 2659 spin_unlock_irq(&bfqd->lock); 2660 mutex_unlock(&bfqd->queue->blkcg_mutex); 2661 } 2662 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki