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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 47C6FC2D0B1 for ; Thu, 6 Feb 2020 14:48:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2134720838 for ; Thu, 6 Feb 2020 14:48:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727007AbgBFOsG (ORCPT ); Thu, 6 Feb 2020 09:48:06 -0500 Received: from mx2.suse.de ([195.135.220.15]:57094 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726744AbgBFOsG (ORCPT ); Thu, 6 Feb 2020 09:48:06 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 39944ADFF; Thu, 6 Feb 2020 14:48:05 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 2AFFD1E0DEB; Thu, 6 Feb 2020 15:48:04 +0100 (CET) Date: Thu, 6 Feb 2020 15:48:04 +0100 From: Jan Kara To: Xiaoguang Wang Cc: Ext4 Developers List , Jan Kara , ted Subject: Re: ext4 support iopoll Message-ID: <20200206144804.GC26114@quack2.suse.cz> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Hello, On Thu 06-02-20 21:29:15, Xiaoguang Wang wrote: > While testing iouring in ext4, we find ext4 does not support .iopoll yet, since > commit "ext4: introduce direct I/O write using iomap infrastructure", seems that > ext4 can support iopoll as well, just add a ".iopoll = iomap_dio_iopoll,". > So I wonder is there any special reason that ext4 does not have have this iopoll > interface? Thanks. I'm not aware of any so feel free to submit a patch :) Honza -- Jan Kara SUSE Labs, CR