From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zeniv.linux.org.uk ([195.92.253.2]:35376 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751505AbeCVQgH (ORCPT ); Thu, 22 Mar 2018 12:36:07 -0400 Date: Thu, 22 Mar 2018 16:36:05 +0000 From: Al Viro To: Christoph Hellwig Cc: Avi Kivity , linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: io_pgetevents & aio fsync Message-ID: <20180322163605.GH30522@ZenIV.linux.org.uk> References: <20180321073232.13366-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180321073232.13366-1-hch@lst.de> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Wed, Mar 21, 2018 at 08:32:23AM +0100, Christoph Hellwig wrote: > Hi all, > > this patch adds workqueue based fsync offload. Version of this > patch have been floating around for a couple years, but we now > have a user with seastar used by ScyllaDB (who sponsored this > work) that really wants this in addition to the aio poll support. > More details are in the patch itself. > > Because the iocb types have been defined sine day one (and probably > were supported by RHEL3) libaio already supports these calls as-is. > > This also pulls in the aio cleanups and io_pgetevents support previously > submitted and review as part of the aio poll series. The aio poll > series will be resubmitted on top of this series Everything other than 6/9 looks sane; 6/9 belongs in aio poll series and AFAICS its user in there is actually broken.