From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754615Ab1K1UQS (ORCPT ); Mon, 28 Nov 2011 15:16:18 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:48658 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754010Ab1K1UQR (ORCPT ); Mon, 28 Nov 2011 15:16:17 -0500 X-Authority-Analysis: v=2.0 cv=Xd0LPfF5 c=1 sm=0 a=ZycB6UtQUfgMyuk2+PxD7w==:17 a=jMOZBfb3lLUA:10 a=5SG0PmZfjMsA:10 a=IkcTkHD0fZMA:10 a=rcC7Z8CIbsXwdEZJI5QA:9 a=QEXdDO2ut3YA:10 a=ZycB6UtQUfgMyuk2+PxD7w==:117 X-Cloudmark-Score: 0 X-Originating-IP: 74.67.80.29 Subject: Re: [PATCH 7/9] ftrace, perf: Add support to use function tracepoint in perf From: Steven Rostedt To: Peter Zijlstra Cc: Jiri Olsa , fweisbec@gmail.com, mingo@redhat.com, paulus@samba.org, acme@ghostprotocols.net, linux-kernel@vger.kernel.org In-Reply-To: <1322511002.2921.171.camel@twins> References: <1322417074-5834-1-git-send-email-jolsa@redhat.com> <1322417074-5834-8-git-send-email-jolsa@redhat.com> <1322510318.17003.14.camel@frodo> <1322510931.2921.170.camel@twins> <1322511002.2921.171.camel@twins> Content-Type: text/plain; charset="UTF-8" Date: Mon, 28 Nov 2011 15:16:15 -0500 Message-ID: <1322511375.17003.25.camel@frodo> Mime-Version: 1.0 X-Mailer: Evolution 2.32.3 (2.32.3-1.fc14) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2011-11-28 at 21:10 +0100, Peter Zijlstra wrote: > > Yeah, but still not something you want to do during context switches, > > right? > > Also, that's x86, there's still archs that need stop_machine(), right? s390 may need it, but till we add a work around there too. But yeah, if this happens at context switch, then we want the fast enable/disable that Jiri made. -- Steve