From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 340B18F43 for ; Wed, 7 Dec 2022 22:23:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1670451803; x=1701987803; h=date:from:to:cc:subject:message-id:mime-version: content-transfer-encoding; bh=Or7jFDAVkQ5Vg8g2E/QItH8WmcbytOwNOoywcLhdVXk=; b=Clda2GIxpUCNPXXmHmrZCWuGHmk8A3KowNo8VRNxDT4aHLHofyjTMvja wZ1MEbzfCMJHrMJlnLS7uq4rq+KMUmpIeYnlEiMQZG9+QuMgPnvFEouDU p3KAv0niI3PJ1PNaSy4vXchb7WFDf9oyhRTrWdOLaAw43oqzZG++dtpzj lQISd37eIb37T4fHCHmQknP4+Ic5PF5lGqEPh+RAqOF1BZ6rtCY+fvnAD kunerscY/DkcQM+/E4eY4PTtMHAv9WPX8WFID3IlXstZUn4tXiWUtjBY1 rBuiHYmauw4K6Kd+i745DtalGlNJcC1MG3wokzIxaLBvvMMXc7AeKCzRq g==; X-IronPort-AV: E=McAfee;i="6500,9779,10554"; a="403284872" X-IronPort-AV: E=Sophos;i="5.96,225,1665471600"; d="scan'208";a="403284872" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Dec 2022 14:23:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10554"; a="646773493" X-IronPort-AV: E=Sophos;i="5.96,225,1665471600"; d="scan'208";a="646773493" Received: from lkp-server01.sh.intel.com (HELO b5d47979f3ad) ([10.239.97.150]) by orsmga002.jf.intel.com with ESMTP; 07 Dec 2022 14:23:20 -0800 Received: from kbuild by b5d47979f3ad with local (Exim 4.96) (envelope-from ) id 1p32ox-0000bv-2y; Wed, 07 Dec 2022 22:23:19 +0000 Date: Thu, 08 Dec 2022 06:22:21 +0800 From: kernel test robot To: Amir Goldstein Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev Subject: [lkp] [+77 bytes kernel size regression] [i386-tinyconfig] [5a7c77eebb] fsnotify: prepare for directory entry pre-modify permission events Message-ID: <6391121d.WolFGJw5FjD6RKcH%lkp@intel.com> User-Agent: Heirloom mailx 12.5 6/20/10 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit FYI, we noticed a +77 bytes kernel size regression due to commit: commit: 5a7c77eebbac19d62a5f25c78e66c487cd7f8366 (fsnotify: prepare for directory entry pre-modify permission events) https://github.com/amir73il/linux fan_pre_modify Details as below (size data is obtained by `nm --size-sort vmlinux`): 79db767d: fanotify: introduce FAN_PRE_ATTRIB permission event 5a7c77ee: fsnotify: prepare for directory entry pre-modify permission events +-------------------------+----------+----------+-------+ | symbol | 79db767d | 5a7c77ee | delta | +-------------------------+----------+----------+-------+ | nm.T.filename_lookupat | 0 | 183 | 183 | | nm.T.user_path_lookupat | 0 | 69 | 69 | | bzImage | 492256 | 492320 | 64 | | nm.t.filename_parentat | 165 | 174 | 9 | | nm.t.do_readlinkat | 191 | 196 | 5 | | nm.T.do_renameat2 | 814 | 817 | 3 | | nm.T.do_rmdir | 257 | 251 | -6 | | nm.T.do_unlinkat | 366 | 360 | -6 | | nm.T.kern_path_locked | 139 | 132 | -7 | | nm.t.filename_create | 222 | 215 | -7 | | nm.T.user_path_at_empty | 56 | 0 | -56 | | nm.T.filename_lookup | 129 | 19 | -110 | +-------------------------+----------+----------+-------+ Thanks