Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753213Ab0ASCei (ORCPT ); Mon, 18 Jan 2010 21:34:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752771Ab0ASCeh (ORCPT ); Mon, 18 Jan 2010 21:34:37 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46724 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752748Ab0ASCeg (ORCPT ); Mon, 18 Jan 2010 21:34:36 -0500 From: Masami Hiramatsu Subject: [PATCH -tip 2/2] kprobetrace, doc: Add the explanation to remove probe points To: Ingo Molnar , lkml Cc: systemtap , DLE , KOSAKI Motohiro , Masami Hiramatsu Date: Mon, 18 Jan 2010 21:35:12 -0500 Message-ID: <20100119023512.31880.35535.stgit@localhost6.localdomain6> In-Reply-To: <20100117071411.GD19512@elte.hu> References: <20100117071411.GD19512@elte.hu> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1487 Lines: 43 From: Motohiro KOSAKI Latest kprobetrace can remove probe points selectively. thus documentation should be updated too. Signed-off-by: KOSAKI Motohiro Acked-by: Masami Hiramatsu --- Documentation/trace/kprobetrace.txt | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index ab57f02..a9100b2 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -24,6 +24,7 @@ Synopsis of kprobe_events ------------------------- p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS] : Set a probe r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS] : Set a return probe + -:[GRP/]EVENT : Clear a probe GRP : Group name. If omitted, use "kprobes" for it. EVENT : Event name. If omitted, the event name is generated @@ -122,6 +123,12 @@ REC->dfd, REC->filename, REC->flags, REC->mode This clears all probe points. + Or, + + echo -:myprobe >> kprobe_events + + This clears probe points selectively. + Right after definition, each event is disabled by default. For tracing these events, you need to enable it. -- 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/