From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC454C433F5 for ; Wed, 13 Oct 2021 02:39:02 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6EDE860041 for ; Wed, 13 Oct 2021 02:39:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 6EDE860041 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=RCbiyvuzEACD5l7XmHXLsLXXlnHlKe8m2inIOuMzTHU=; b=TXpR4mehpGJtbjvSwmPcZgwift VDieNWTo0ZJ4j2Cf7ZQ+h73ZG0NKjqtddKKqRWPvfHWsH4bdQHaE1IB2qIHxHMeSgTxFlDdZGVu4s BvYIX3Cj/AxLkG0CQW6nTLoGCtvgZj7ajlTs3DH4yViTn4q6yyA67AFjk3hEp7z+LR9ccAZGZWhZs 1mAs9/JkCp96Am88QjU3cBrZgQmJf4dWnUfJREAblvcBxEsjFXJ2iy7WliEPD8gJgd/aTKn0+4845 jCUlMOha1dpAcWDDgYoVw5aDzjcNt+ARtrlvZZr1wARpGo6qlDgefpIDy/KfY5lotf9WzqV+1jTdx 5pruSt/Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maUAA-00EfEn-GO; Wed, 13 Oct 2021 02:38:38 +0000 Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maUA6-00EfDs-Ta for linux-riscv@lists.infradead.org; Wed, 13 Oct 2021 02:38:36 +0000 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R191e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04423; MF=yun.wang@linux.alibaba.com; NM=1; PH=DS; RN=31; SR=0; TI=SMTPD_---0Urdkez0_1634092708; Received: from testdeMacBook-Pro.local(mailfrom:yun.wang@linux.alibaba.com fp:SMTPD_---0Urdkez0_1634092708) by smtp.aliyun-inc.com(127.0.0.1); Wed, 13 Oct 2021 10:38:30 +0800 Subject: Re: [PATCH 1/2] ftrace: disable preemption on the testing of recursion To: Steven Rostedt Cc: Guo Ren , Ingo Molnar , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , Josh Poimboeuf , Jiri Kosina , Miroslav Benes , Petr Mladek , Joe Lawrence , Colin Ian King , Masami Hiramatsu , "Peter Zijlstra (Intel)" , Nicholas Piggin , Jisheng Zhang , linux-csky@vger.kernel.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, live-patching@vger.kernel.org References: <8c7de46d-9869-aa5e-2bb9-5dbc2eda395e@linux.alibaba.com> <20211012084331.06b8dd23@gandalf.local.home> <1eab20c1-d69b-f94b-92ff-4329d0aff6a2@linux.alibaba.com> <20211012223039.78099c24@oasis.local.home> From: =?UTF-8?B?546L6LSH?= Message-ID: <40a6e16f-6335-c271-c91b-622c8d7f6521@linux.alibaba.com> Date: Wed, 13 Oct 2021 10:38:28 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <20211012223039.78099c24@oasis.local.home> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211012_193835_139522_0E6CAE2A X-CRM114-Status: GOOD ( 10.82 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org CgpPbiAyMDIxLzEwLzEzIOS4iuWNiDEwOjMwLCBTdGV2ZW4gUm9zdGVkdCB3cm90ZToKPiBPbiBX ZWQsIDEzIE9jdCAyMDIxIDEwOjA0OjUyICswODAwCj4g546L6LSHIDx5dW4ud2FuZ0BsaW51eC5h bGliYWJhLmNvbT4gd3JvdGU6Cj4gCj4+IEkgc2VlLCB3aGlsZSB0aGUgdXNlciBjYW4gc3RpbGwg Y2hlY2sgc21wX3Byb2Nlc3Nvcl9pZCgpIGFmdGVyIHRyeWxvY2sKPj4gcmV0dXJuIGJpdCAwLi4u Cj4gCj4gQnV0IHByZWVtcHRpb24gd291bGQgaGF2ZSBhbHJlYWR5IGJlZW4gZGlzYWJsZWQuIFRo YXQncyBiZWNhdXNlIGEgYml0IDAKPiBtZWFucyB0aGF0IGEgcmVjdXJzaW9uIGNoZWNrIGhhcyBh bHJlYWR5IGJlZW4gbWFkZSBieSBhIHByZXZpb3VzCj4gY2FsbGVyIGFuZCB0aGlzIG9uZSBpcyBu ZXN0ZWQsIHRodXMgcHJlZW1wdGlvbiBpcyBhbHJlYWR5IGRpc2FibGVkLgo+IElmIGJpdCBpcyAw LCB0aGVuIHByZWVtcHRpb24gaGFkIGJldHRlciBiZSBkaXNhYmxlZCBhcyB3ZWxsLgoKVGhhbmtz IGZvciB0aGUgZXhwbGFpbiwgbm93IEkgZ2V0IHlvdXIgcG9pbnQgOi0pCgpMZXQncyBtYWtlIGJp dCAwIGFuIGV4ZW1wdGlvbiB0aGVuLgoKUmVnYXJkcywKTWljaGFlbCBXYW5nCgo+IAo+IC0tIFN0 ZXZlCj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwps aW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpo dHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==