From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17424 invoked by alias); 5 Apr 2011 01:27:16 -0000 Received: (qmail 17406 invoked by uid 22791); 5 Apr 2011 01:27:15 -0000 X-SWARE-Spam-Status: No, hits=-0.8 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from mail4.hitachi.co.jp (HELO mail4.hitachi.co.jp) (133.145.228.5) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 05 Apr 2011 01:27:11 +0000 Received: from mlsv2.hitachi.co.jp (unknown [133.144.234.166]) by mail4.hitachi.co.jp (Postfix) with ESMTP id B1FA833CC4; Tue, 5 Apr 2011 10:27:10 +0900 (JST) Received: from mfilter1.hitachi.co.jp by mlsv2.hitachi.co.jp (8.13.1/8.13.1) id p351RAJS008822; Tue, 5 Apr 2011 10:27:10 +0900 Received: from vshuts4.hitachi.co.jp (vshuts4.hitachi.co.jp [10.201.6.80]) by mfilter1.hitachi.co.jp (Switch-3.3.2/Switch-3.3.2) with ESMTP id p351R8IN031396; Tue, 5 Apr 2011 10:27:09 +0900 Received: from hsdlmain.sdl.hitachi.co.jp (unknown [133.144.14.194]) by vshuts4.hitachi.co.jp (Symantec Mail Security) with ESMTP id 7CFA3204315; Tue, 5 Apr 2011 10:27:08 +0900 (JST) Received: from hsdlvgate2.sdl.hitachi.co.jp by hsdlmain.sdl.hitachi.co.jp (8.13.1/3.7W11021512) id p351R8J6026525; Tue, 5 Apr 2011 10:27:08 +0900 Received: from sdl99w.sdl.hitachi.co.jp (sdl99w.sdl.hitachi.co.jp [133.144.14.250]) by hsdlvgate2.sdl.hitachi.co.jp (Symantec Mail Security) with ESMTP id AA70B236561; Tue, 5 Apr 2011 10:25:08 +0900 (JST) Received: from [127.0.0.1] (cb10032769.sdl.hitachi.co.jp [10.232.9.172]) by sdl99w.sdl.hitachi.co.jp (Postfix) with ESMTP id BFE59125543; Tue, 5 Apr 2011 10:27:04 +0900 (JST) Message-ID: <4D9A6FE8.2010301@hitachi.com> Date: Tue, 05 Apr 2011 01:27:00 -0000 From: Masami Hiramatsu User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9 MIME-Version: 1.0 To: Srikar Dronamraju Cc: Peter Zijlstra , Ingo Molnar , Steven Rostedt , Linux-mm , Arnaldo Carvalho de Melo , Linus Torvalds , Ananth N Mavinakayanahalli , Christoph Hellwig , Andi Kleen , Thomas Gleixner , Jonathan Corbet , Oleg Nesterov , Andrew Morton , Jim Keniston , Roland McGrath , SystemTap , LKML Subject: Re: [PATCH v3 2.6.39-rc1-tip 26/26] 26: uprobes: filter chain References: <20110401143223.15455.19844.sendpatchset@localhost6.localdomain6> <20110401143737.15455.30181.sendpatchset@localhost6.localdomain6> In-Reply-To: <20110401143737.15455.30181.sendpatchset@localhost6.localdomain6> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2011-q2/txt/msg00049.txt.bz2 (2011/04/01 23:37), Srikar Dronamraju wrote: > Loops through the filters callbacks of currently registered > consumers to see if any consumer is interested in tracing this task. > > Signed-off-by: Srikar Dronamraju > --- > kernel/uprobes.c | 17 +++++++++++++++++ > 1 files changed, 17 insertions(+), 0 deletions(-) > > diff --git a/kernel/uprobes.c b/kernel/uprobes.c > index c950f13..62ccb56 100644 > --- a/kernel/uprobes.c > +++ b/kernel/uprobes.c > @@ -450,6 +450,23 @@ static void handler_chain(struct uprobe *uprobe, struct pt_regs *regs) > up_read(&uprobe->consumer_rwsem); > } > > +static bool filter_chain(struct uprobe *uprobe, struct task_struct *t) > +{ > + struct uprobe_consumer *consumer; > + bool ret = false; > + > + down_read(&uprobe->consumer_rwsem); > + for (consumer = uprobe->consumers; consumer; > + consumer = consumer->next) { > + if (!consumer->filter || consumer->filter(consumer, t)) { > + ret = true; > + break; > + } > + } > + up_read(&uprobe->consumer_rwsem); > + return ret; > +} > + Where this function is called from ? This patch seems the last one of this series... Thank you, -- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com