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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 583FBC636CC for ; Thu, 16 Feb 2023 14:40:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229675AbjBPOkX (ORCPT ); Thu, 16 Feb 2023 09:40:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229512AbjBPOkW (ORCPT ); Thu, 16 Feb 2023 09:40:22 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DDB77311C3 for ; Thu, 16 Feb 2023 06:40:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PaHvrs3iBsQcNhnMYeNKKFX/2Pob4S55+YkVPxadmnk=; b=KSgP3DkEhnGnup50lRxVxWa0M/ yrmoF8wzGo9otypYITvDdLwDb2W1I6pTaSy4reXjUFqGjOt+d8929hJYVokATHpnydMNlRGuLaD9O oVh5MBwKIIQyN70arMuhFG/KGFiI9scd/20FJEABsOzZjVUwzbtJZ/l1cXli8eetFKiTtY/PkLQzd WtDfN7pPxWwUy15CnBV6BM5mY/m6EUN4oxp9RY01kYfIr1xGbSJrJt/3V6zf8PZ7PGtIfo3b1BdJP 7BeAX9HZ+38sBDQcfTYCNBqasc2ZPtMTuZxB/cnkoYTt9Ey/MQvinemeovdu26oIQul+oHJmisR13 MI9DujJQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pSfQq-00AhmE-56; Thu, 16 Feb 2023 14:40:20 +0000 Date: Thu, 16 Feb 2023 06:40:20 -0800 From: Christoph Hellwig To: Jens Axboe Cc: Christoph Hellwig , "linux-block@vger.kernel.org" Subject: Re: [PATCH] brd: mark as nowait compatible Message-ID: References: <776a5fa2-818c-de42-2ac3-a4588df218ca@kernel.dk> <9a9adcce-81db-580f-843f-ebff7177464c@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9a9adcce-81db-580f-843f-ebff7177464c@kernel.dk> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Feb 16, 2023 at 06:11:41AM -0700, Jens Axboe wrote: > I did consider that, but we do allocations almost everywhere and Do we? All the code I've touched for nowait goes to great length to avoid blocking allocations.