Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933231Ab3CHGEG (ORCPT ); Fri, 8 Mar 2013 01:04:06 -0500 Received: from e39.co.us.ibm.com ([32.97.110.160]:60566 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932158Ab3CHGEE (ORCPT ); Fri, 8 Mar 2013 01:04:04 -0500 Date: Fri, 8 Mar 2013 11:33:41 +0530 From: Ananth N Mavinakayanahalli To: Masami Hiramatsu Cc: oskar.andero@sonymobile.com, linux-kernel@vger.kernel.org, davem@davemloft.net, anil.s.keshavamurthy@intel.com, radovan.lekanovic@sonymobile.com, =?utf-8?B?77+9IDxiam9ybi5kYXZpZHNzb25Ac29ueW1vYmlsZS5jb20+?=@thinktux.in.ibm.com Subject: Re: [PATCH] Kprobes blacklist: Conditionally add x86-specific symbols Message-ID: <20130308060341.GB4029@in.ibm.com> Reply-To: ananth@in.ibm.com References: <1362653070-24035-1-git-send-email-oskar.andero@sonymobile.com> <513967BD.9010602@hitachi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <513967BD.9010602@hitachi.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13030806-3620-0000-0000-0000018A04A1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1000 Lines: 26 On Fri, Mar 08, 2013 at 01:23:25PM +0900, Masami Hiramatsu wrote: > (2013/03/07 19:44), oskar.andero@sonymobile.com wrote: > > From: Bjorn Davidsson > > > > The kprobes blacklist contains x86-specific symbols. > > Looking for these in kallsyms takes unnecessary time > > during startup on non-X86 platform. > > Added #ifdef CONFIG_X86 around them. > > Right. however, it might be better break that into > common and arch-specific lists, because there may be > other arch-specific non-probe-able functions on each > architecture... Agreed. CONFIG_ in kernel/* is not the right thing to do IMO. You are moving the blacklist initialization to later in the next patch, so how much overhead will it then be? Ananth -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/