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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5CE45C4363A for ; Thu, 29 Oct 2020 14:56:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C88912072D for ; Thu, 29 Oct 2020 14:56:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="R3B+yhJs"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="c0OiIKIV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727905AbgJ2O41 (ORCPT ); Thu, 29 Oct 2020 10:56:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727856AbgJ2O40 (ORCPT ); Thu, 29 Oct 2020 10:56:26 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B94E0C0613CF; Thu, 29 Oct 2020 07:56:26 -0700 (PDT) Date: Thu, 29 Oct 2020 15:56:23 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1603983385; h=from:from:reply-to:subject:subject: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=ppJelXitr+gl2oZ8i2m3v3k6fNoZDDu0mMJEWxPaA9g=; b=R3B+yhJsl4kVrj+NRIoVOC6qm8HDHh9+JlmNjMWLRzVcxLOmM2vcX/h3Uh0LCAUZRJ+zb0 G8schHrKCns30OQ++yJblTjmGKJmb3t9WZq4lNgJu79S6C35MetpAbEDZcPNXqUy9sC1Te avwvRhl2x5fLbsgIqzGSKb8EWx94jgmH0LEzOhA3qNJEbmLwWx1jvNFxVuLTk+ef71RihR p8HEdXiq4HNC1+TQVWQsAVc62R9TpwMdGFNWobMNnmhkdOEaYp/W08H6sYWnkx64IKQEoo AOoRvp0oRqYJqiQyuk1qzcR7jSiV7/Xr8nIQq1D42x6/WJUIImVECkWgk9GSIw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1603983385; h=from:from:reply-to:subject:subject: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=ppJelXitr+gl2oZ8i2m3v3k6fNoZDDu0mMJEWxPaA9g=; b=c0OiIKIV3inkPlqsAHgJAM+6KyYlRUlT2t3Zsl2Gs1aI+yrJvQIX+0H94jbOPibFqe+dzL oDD/O8kJGNKi3KAQ== From: Sebastian Andrzej Siewior To: Christoph Hellwig Cc: linux-block@vger.kernel.org, Thomas Gleixner , David Runge , linux-rt-users@vger.kernel.org, Jens Axboe , linux-kernel@vger.kernel.org, Peter Zijlstra , Daniel Wagner , Mike Galbraith Subject: Re: [PATCH 3/3] blk-mq: Use llist_head for blk_cpu_done Message-ID: <20201029145623.3zry7o6nh6ks5tjj@linutronix.de> References: <20201028065616.GA24449@infradead.org> <20201028141251.3608598-1-bigeasy@linutronix.de> <20201028141251.3608598-3-bigeasy@linutronix.de> <20201029131212.dsulzvsb6pahahbs@linutronix.de> <20201029140536.GA6376@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201029140536.GA6376@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 2020-10-29 14:05:36 [+0000], Christoph Hellwig wrote: > Well, usb-storage obviously seems to do it, and the block layer > does not prohibit it. Also loop, nvme-tcp and then I stopped looking. Any objections about adding local_bh_disable() around it? Sebastian