Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754007AbaKSBym (ORCPT ); Tue, 18 Nov 2014 20:54:42 -0500 Received: from szxga01-in.huawei.com ([119.145.14.64]:7795 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752917AbaKSByk (ORCPT ); Tue, 18 Nov 2014 20:54:40 -0500 Message-ID: <546BF837.1070104@huawei.com> Date: Wed, 19 Nov 2014 09:53:59 +0800 From: Wang Nan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 MIME-Version: 1.0 To: Masami Hiramatsu CC: , , , , , , , , , , , Subject: Re: [PATCH v8 1/2] kprobes: copy ainsn after alloc aggr kprobe References: <1416292359-75893-1-git-send-email-wangnan0@huawei.com> <1416292359-75893-2-git-send-email-wangnan0@huawei.com> <546B2FAE.7000104@hitachi.com> In-Reply-To: <546B2FAE.7000104@hitachi.com> Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.111.69.90] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2014/11/18 19:38, Masami Hiramatsu wrote: > Hi Wang, > > (2014/11/18 15:32), Wang Nan wrote: >> Copy old kprobe to newly alloced optimized_kprobe before >> arch_prepare_optimized_kprobe(). Original kprove can brings more >> information to optimizer. > > As I've asked you on the previous series, I prefer to transfer the > original kprobes to arch_prepare_optimized_kprobe(). > > OK, now I'll send you my patch. If you can agree, feel free to > pick that into your series. > Sorry. The new version series has heavy code changes in checker. I think I must miss real optprobes code during my coding. I will collect your patch and adjust my code in the next version. Thank you. > Thank you, > >> >> v1 -> v2: >> - Bugfix: copy p->addr when alloc_aggr_kprobe. >> >> Signed-off-by: Wang Nan >> --- >> kernel/kprobes.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/kernel/kprobes.c b/kernel/kprobes.c >> index 3995f54..e9868ec 100644 >> --- a/kernel/kprobes.c >> +++ b/kernel/kprobes.c >> @@ -730,7 +730,13 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p) >> return NULL; >> >> INIT_LIST_HEAD(&op->list); >> + >> + /* >> + * copy gives arch_prepare_optimized_kprobe >> + * more information >> + */ >> op->kp.addr = p->addr; >> + copy_kprobe(p, &op->kp); >> arch_prepare_optimized_kprobe(op); >> >> return &op->kp; >> > > -- 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/