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 6E99CC433EF for ; Wed, 27 Oct 2021 02:29:06 +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 3DE8E6103C for ; Wed, 27 Oct 2021 02:29:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3DE8E6103C 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=Y7UGw5IfXMT/smCRe4Ey9uAxRH3zWNfylChrOD8IGdc=; b=aBLY8dVtaMIUsfmoQuIAg+yvTY 73IlyjwuIirwpb9Yv9cKQyFvEqWoozvj8Zt4kb2Brd4PPRRwi++j+kgUb30eGVOzInoJM1D/DluBr 1U+nzmosGVznuVRTBUhQN8PNrNgKGzOH3GDuMMQ72D5Qmq82cJrQYn9FKSeyp+akdEAzLu9UKEFBD /iaDIm+IDhICI3TytgPjtkXVkvudxUzM0HHRS3U1/j0H2cAstII9kPBe0CLTYzJA6T8vhCxaSqjIS dw24WE4oJ3UxkkjDEjz31HjHSBYD9jfTkAS23c2RrFNJeJj1VRGpCD8OpuIFmG0LkkQz331fL1Iyq fc3lHI0A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfYgS-003cGm-5G; Wed, 27 Oct 2021 02:28:56 +0000 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mfYgO-003cEX-S4 for linux-riscv@lists.infradead.org; Wed, 27 Oct 2021 02:28:54 +0000 X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R151e4; 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=30; SR=0; TI=SMTPD_---0Utq-lV5_1635301725; Received: from testdeMacBook-Pro.local(mailfrom:yun.wang@linux.alibaba.com fp:SMTPD_---0Utq-lV5_1635301725) by smtp.aliyun-inc.com(127.0.0.1); Wed, 27 Oct 2021 10:28:47 +0800 Subject: Re: [PATCH v5 1/2] ftrace: disable preemption when recursion locked To: Steven Rostedt Cc: Miroslav Benes , 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 , Petr Mladek , Joe Lawrence , 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: <3ca92dc9-ea04-ddc2-71cd-524bfa5a5721@linux.alibaba.com> <333cecfe-3045-8e0a-0c08-64ff590845ab@linux.alibaba.com> <18ba2a71-e12d-33f7-63fe-2857b2db022c@linux.alibaba.com> <20211026080117.366137a5@gandalf.local.home> <3d897161-7b74-944a-f2a0-07311436fbd9@linux.alibaba.com> <20211026222600.7899126f@rorschach.local.home> From: =?UTF-8?B?546L6LSH?= Message-ID: Date: Wed, 27 Oct 2021 10:28:45 +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: <20211026222600.7899126f@rorschach.local.home> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211026_192853_082084_6CF86597 X-CRM114-Status: GOOD ( 10.81 ) 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 CgpPbiAyMDIxLzEwLzI3IOS4iuWNiDEwOjI2LCBTdGV2ZW4gUm9zdGVkdCB3cm90ZToKPiBPbiBX ZWQsIDI3IE9jdCAyMDIxIDA5OjU0OjEzICswODAwCj4g546L6LSHIDx5dW4ud2FuZ0BsaW51eC5h bGliYWJhLmNvbT4gd3JvdGU6Cj4gCj4+IE15IGFwb2xvZ2l6ZSBmb3IgdGhlIHN0dXBpZCBjb21t ZW50cy4uLiBJJ2xsIHNlbmQgYSB2NiBmb3IgdGhpcyBwYXRjaAo+PiBvbmx5IHRvIGZpeCB0aGF0 LCBwbGVhc2UgbGV0IG1lIGtub3cgaWYgdGhpcyBpcyBub3QgYSBnb29kIHdheSB0byBmaXgKPj4g ZmV3IGxpbmVzIG9mIGNvbW1lbnRzLgo+IAo+IEFjdHVhbGx5LCBwbGVhc2UgcmVzZW5kIGJvdGgg cGF0Y2hlcywgYXMgYSBuZXcgcGF0Y2ggc2V0LCBvbiBpdHMgb3duIHRocmVhZC4KPiAKPiBKdXN0 IHJlcGx5aW5nIGhlcmUgd29uJ3QgdHJpZ2dlciBteSBwYXRjaHdvcmsgc2NyaXB0cy4KPiAKPiBB bmQgYWxzbywgaWYgeW91IGRvbid0IGluY2x1ZGUgdGhlIG90aGVyIHBhdGNoLCB0aGUgc2NyaXB0 cyB3aWxsIGRyb3AKPiBpdC4KCkdvdCBpdH4KClJlZ2FyZHMsCk1pY2hhZWwgV2FuZwoKPiAKPiBU aGFua3MsCj4gCj4gLS0gU3RldmUKPiAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtcmlzY3YK