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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id m12-20020a63ed4c000000b003816043f00csi971378pgk.513.2022.03.16.21.11.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Mar 2022 21:11:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.cz header.s=susede2_rsa header.b=wCo8gk2H; dkim=neutral (no key) header.i=@suse.cz; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B3485AC90D; Wed, 16 Mar 2022 20:50:12 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346128AbiCPPFR (ORCPT + 99 others); Wed, 16 Mar 2022 11:05:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34162 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243630AbiCPPFO (ORCPT ); Wed, 16 Mar 2022 11:05:14 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7457317A8B; Wed, 16 Mar 2022 08:03:56 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 296301F38A; Wed, 16 Mar 2022 15:03:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1647443035; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6gilQw/9Z9NczvnlsL52W9+TUtbcnnLp4l+WuiFISy8=; b=wCo8gk2HPzBD7T7oH5WtYhIza+sErb1GQTspR2PpAw7fmk2uHICAC1F/xQd3y80qM2dpqz ORZCuW4Cs83nnxLPBpR78R5mXuL3+S+nOqcUn07kB9XVDhGOcVGeu8bP1/kEenVPj+HXJO 8qzh1zis8br4r5v17Bs2ftByomDP8aM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1647443035; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6gilQw/9Z9NczvnlsL52W9+TUtbcnnLp4l+WuiFISy8=; b=HxpnJAtx1yaQPrpnCGnH28tQVTAAkmB9FWOpuOi6gKMERe1RD6Va/qUM21euQqy7G6i2hD eJSZGLDUhCHza9Cg== Received: from pobox.suse.cz (pobox.suse.cz [10.100.2.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 011C9A3B87; Wed, 16 Mar 2022 15:03:54 +0000 (UTC) Date: Wed, 16 Mar 2022 16:03:54 +0100 (CET) From: Miroslav Benes To: Petr Mladek cc: Chengming Zhou , jpoimboe@redhat.com, jikos@kernel.org, joe.lawrence@redhat.com, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, songmuchun@bytedance.com, qirui.001@bytedance.com Subject: Re: [PATCH v3] livepatch: Don't block removal of patches that are safe to unload In-Reply-To: Message-ID: References: <20220312152220.88127-1-zhouchengming@bytedance.com> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > > + /* > > > + * Only need to set forced flag for the transition patch > > > + * when force transition to KLP_UNPATCHED state, but > > > + * have to set forced flag for all replaced patches > > > + * when force atomic replace transition. > > > + */ > > > > How about something like > > > > /* > > * Set forced flag for patches being removed, which is the transition > > * patch in KLP_UNPATCHED state or all replaced patches when forcing > > * the atomic replace transition. > > */ > > Or just the first sentence: > > /* Set forced flag for patches being removed */ > > The rest is visible from the code. True. This would work for me as well. Miroslav