From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (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 C6F7335CBA5; Mon, 17 Nov 2025 13:58:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763387888; cv=none; b=sSKdOXpIsuLbN7Zx/RZJcm1Zh1DoPpGaG6qNyF1vr5yGYBVtiUUglvugbE3RmxU8OQ9ESYUvtHy0WFU0UiJ8HpXLOs5PcLh71BiTK9U8/oyyPlDixmPW3zT7zgCIH1QKXtlLKCZyf2y0x2le+jq6JYqLS1hdhJ7DU5PmnPxR30E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763387888; c=relaxed/simple; bh=aOOep/LMZyjCFb+0figw9x6/fU0tp4jqTN9xUA9l1RY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=F7BQdvWKDEUSffVSX0iux2VVJ+XWsIMuQDhH7LZTRpH36p2DKFNILXZpsoSoi5JQ99yB1BJu0900urXnLDxCKP9L4epr9sHTZXJG/6FKSl3Fa0YtgSF7mO1xa4eourXSnrxjXO4sedOiflUubTeMO479/VKTrEY3hpRLj+TWioE= 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=nR7o+vQS; arc=none smtp.client-ip=198.175.65.9 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="nR7o+vQS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763387887; x=1794923887; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=aOOep/LMZyjCFb+0figw9x6/fU0tp4jqTN9xUA9l1RY=; b=nR7o+vQSL/4iihVMG4+mtmM6f087KkQ0eko1Popij5LLyE84Oer1B76b bgeu167rkqjj3vJl0yFKNAuiobPpl73mzwZ7+paOrtA5Aiu30LwXW5iwU pKL4nHBnFdDMIHwqrVAdb4jrZvLoGphnt2nyDPb8Pk1VroenZgGt6RRLb NY8vf1TRUho6ZMeY/RHvXzSaw6h3jGkIfwjLBAalwOU+YqanyjE+PUa8p aoNS6ZWLHOumoSb0JTIuEsCXHLXReQQLkUvKBngOmQpryrgIhS+0BkGWi M97rIyepxEY3xPMBrpeZdNMmoopU814jaEZXHMbA9cLz4UpVqItNL2VAP w==; X-CSE-ConnectionGUID: QpBlt1yeQT69rwarQR4D1A== X-CSE-MsgGUID: v4g5jzvwTeCKcbkA2fdBOQ== X-IronPort-AV: E=McAfee;i="6800,10657,11616"; a="88034659" X-IronPort-AV: E=Sophos;i="6.19,312,1754982000"; d="scan'208";a="88034659" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 05:58:06 -0800 X-CSE-ConnectionGUID: poikwz5BTcuAOY6uTKtFlw== X-CSE-MsgGUID: GFanoOrsSq6EKzc2fr1N6w== X-ExtLoop1: 1 Received: from lkp-server01.sh.intel.com (HELO adf6d29aa8d9) ([10.239.97.150]) by fmviesa003.fm.intel.com with ESMTP; 17 Nov 2025 05:58:04 -0800 Received: from kbuild by adf6d29aa8d9 with local (Exim 4.96) (envelope-from ) id 1vKzk2-0000ch-0F; Mon, 17 Nov 2025 13:58:02 +0000 Date: Mon, 17 Nov 2025 21:57:12 +0800 From: kernel test robot To: Ye Bin , viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, linux-fsdevel@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, yebin10@huawei.com Subject: Re: [PATCH v2 2/3] sysctl: add support for drop_caches for individual filesystem Message-ID: <202511172139.326qNHOk-lkp@intel.com> References: <20251117112735.4170831-3-yebin@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20251117112735.4170831-3-yebin@huaweicloud.com> Hi Ye, kernel test robot noticed the following build errors: [auto build test ERROR on viro-vfs/for-next] [also build test ERROR on linus/master brauner-vfs/vfs.all v6.18-rc6 next-20251117] [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/Ye-Bin/vfs-introduce-reclaim_icache_sb-and-reclaim_dcache_sb-helper/20251117-193502 base: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-next patch link: https://lore.kernel.org/r/20251117112735.4170831-3-yebin%40huaweicloud.com patch subject: [PATCH v2 2/3] sysctl: add support for drop_caches for individual filesystem config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20251117/202511172139.326qNHOk-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251117/202511172139.326qNHOk-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/202511172139.326qNHOk-lkp@intel.com/ All errors (new ones prefixed by >>): fs/drop_caches.c: In function 'drop_fs_caches': >> fs/drop_caches.c:107:25: error: implicit declaration of function 'syscall_set_return_value'; did you mean 'syscall_get_return_value'? [-Wimplicit-function-declaration] 107 | syscall_set_return_value(current, | ^~~~~~~~~~~~~~~~~~~~~~~~ | syscall_get_return_value vim +107 fs/drop_caches.c 91 92 static void drop_fs_caches(struct callback_head *twork) 93 { 94 int ret; 95 struct super_block *sb; 96 static bool suppress; 97 struct drop_fs_caches_work *work = container_of(twork, 98 struct drop_fs_caches_work, task_work); 99 unsigned int ctl = work->ctl; 100 dev_t dev = work->dev; 101 102 if (work->path) { 103 struct path path; 104 105 ret = kern_path(work->path, LOOKUP_FOLLOW, &path); 106 if (ret) { > 107 syscall_set_return_value(current, 108 current_pt_regs(), 109 0, ret); 110 goto out; 111 } 112 dev = path.dentry->d_sb->s_dev; 113 /* Make this file's dentry and inode recyclable */ 114 path_put(&path); 115 } 116 117 sb = user_get_super(dev, false); 118 if (!sb) { 119 syscall_set_return_value(current, current_pt_regs(), 0, 120 -EINVAL); 121 goto out; 122 } 123 124 if (ctl & BIT(0)) { 125 lru_add_drain_all(); 126 drop_pagecache_sb(sb, NULL); 127 count_vm_event(DROP_PAGECACHE); 128 } 129 130 if (ctl & BIT(1)) { 131 reclaim_dcache_sb(sb); 132 reclaim_icache_sb(sb); 133 count_vm_event(DROP_SLAB); 134 } 135 136 if (!READ_ONCE(suppress)) { 137 pr_info("%s (%d): %s: %d %u:%u\n", current->comm, 138 task_pid_nr(current), __func__, ctl, 139 MAJOR(sb->s_dev), MINOR(sb->s_dev)); 140 141 if (ctl & BIT(2)) 142 WRITE_ONCE(suppress, true); 143 } 144 145 drop_super(sb); 146 out: 147 kfree(work->path); 148 kfree(work); 149 } 150 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki