From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3138558-1521736569-2-3164784926985316715 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='uk', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: linux-api-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521736569; b=m+UkRJqmnkuhxVE+TG7S/SOO43A1gg/xFU0yZZM43rMRMLC pMol74xW5vakG0/9tkBSkmD/P0v68lKnVPHQUzE10LMPGpJXUBK+wVaEXrH5pOVl ILKjXteCfYZC4BxEmYxqSRZbENwlSbhL8j/s1rWZNyeczfVAJ/bzr8IMCmvDNbzC HVpmZZbY0T26+NtppAUDE96IOK9Wfpl4QV9D0AkiVdjpWWJvIYgZ5Csz9X1Us8Bf ZOZNyAU9DdIviumGXvF2FJ+SOn0F9s2iGFbGN64grw62YIcqH6J3qg2yrH3QKkaR Zoku1YkNFtlEFIuE42D9yaGTEH828Hxm0jG6ybw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to:sender :list-id; s=arctest; t=1521736569; bh=DLXtVvnjQdGGYgAT47h/RUTmwp AsuKFOeIsiKIWP4lE=; b=ih3C1JwwDGL1pZWVmIJ6CHDeFuhT0dzQSKoLx+VZkD DI0GN1g/NrLmXdeogKWPzY/EU/79ooWF7rka1MfieN2s2BvsQZ6DaAvaq+3+NL3N dlWU0e5Djxq5uAP0yc/1UCdO79oEX7BqPgwATDYgOoKPNNURL23IAAnWsF9fvEO9 gIZXVpBQwf6BkkA8VKMfWGsreXZcC69frSDcNAxMA7ePEsWiTUsJTK0Dg2N4QudI 1qgXS0ImQoqq6hIfVP07WvIQrzutINao9SpeasQXgY+HXq1oowKv9bJFhdp0uEYN ttuprskYwmaVTJc0B3Gfw3OOruKEUE1l5uSw6Z4jmi9A== ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=zeniv.linux.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=zeniv.linux.org.uk header.mx.error=NOERROR header.result=warn header_org.domain=linux.org.uk header_org.result=pass header_is_org_domain=no; x-vs=clean score=-100 state=0 Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=zeniv.linux.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=linux-api-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=zeniv.linux.org.uk header.mx.error=NOERROR header.result=warn header_org.domain=linux.org.uk header_org.result=pass header_is_org_domain=no; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751553AbeCVQgI (ORCPT ); Thu, 22 Mar 2018 12:36:08 -0400 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> User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-api-owner@vger.kernel.org X-Mailing-List: linux-api@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@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.