From patchwork Wed May 25 22:34:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Roesch X-Patchwork-Id: 12861782 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39F37C433EF for ; Wed, 25 May 2022 22:35:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 82D548D0013; Wed, 25 May 2022 18:35:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6A5E68D0011; Wed, 25 May 2022 18:35:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 51E078D0013; Wed, 25 May 2022 18:35:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 3C1888D0011 for ; Wed, 25 May 2022 18:35:04 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay13.hostedemail.com (Postfix) with ESMTP id 1C275601B0 for ; Wed, 25 May 2022 22:35:04 +0000 (UTC) X-FDA: 79505722128.08.C6EF9DE Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by imf04.hostedemail.com (Postfix) with ESMTP id 512894003F for ; Wed, 25 May 2022 22:34:47 +0000 (UTC) Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.17.1.5/8.17.1.5) with ESMTP id 24PGtaL6012100 for ; Wed, 25 May 2022 15:35:03 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=xrXV6DDKAu8edht2TcHb7XC2Tqf/DAsX1r3VS5rTvoo=; b=nq/FnwgdSIxm3G9FiuG3qyoerWRrW88Z7auP/XV0XDH6CQ1Q4on+mEQUjeHlNPFYE33n YfyLfvGQIFSss8nr2vgfVMvzQY7nXodO3hkRAAC4zhf7eKnoQ8UKQHpX4W6rG+Y6X+1K iOURdEUMw7fswKxKwPRAHTS577uxgBnQAEY= Received: from mail.thefacebook.com ([163.114.132.120]) by m0001303.ppops.net (PPS) with ESMTPS id 3g9qtuafrd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 25 May 2022 15:35:02 -0700 Received: from twshared4937.07.ash9.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:11d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.28; Wed, 25 May 2022 15:35:01 -0700 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id 4A19FF9E1B83; Wed, 25 May 2022 15:34:35 -0700 (PDT) From: Stefan Roesch To: , , , , CC: , , , Subject: [PATCH v5 15/16] xfs: Add async buffered write support Date: Wed, 25 May 2022 15:34:31 -0700 Message-ID: <20220525223432.205676-16-shr@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220525223432.205676-1-shr@fb.com> References: <20220525223432.205676-1-shr@fb.com> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-GUID: 2_fqxl02weTaWOZaQD_Iv0E-fRpjSyjj X-Proofpoint-ORIG-GUID: 2_fqxl02weTaWOZaQD_Iv0E-fRpjSyjj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-25_07,2022-05-25_02,2022-02-23_01 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 512894003F X-Stat-Signature: x51it63jnn56fuqgq41itjcrc6p3n858 X-Rspam-User: Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=fb.com header.s=facebook header.b="nq/Fnwgd"; spf=none (imf04.hostedemail.com: domain of "prvs=61440c7716=shr@fb.com" has no SPF policy when checking 67.231.153.30) smtp.mailfrom="prvs=61440c7716=shr@fb.com"; dmarc=pass (policy=reject) header.from=fb.com X-HE-Tag: 1653518087-978291 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This adds the async buffered write support to XFS. For async buffered write requests, the request will return -EAGAIN if the ilock cannot be obtained immediately. Signed-off-by: Stefan Roesch --- fs/xfs/xfs_file.c | 9 ++++----- fs/xfs/xfs_iomap.c | 5 ++++- 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 50dea07f5e56..e9d615f4c209 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -409,7 +409,7 @@ xfs_file_write_checks( spin_unlock(&ip->i_flags_lock); out: - return file_modified(file); + return kiocb_modified(iocb); } static int @@ -701,12 +701,11 @@ xfs_file_buffered_write( bool cleared_space = false; int iolock; - if (iocb->ki_flags & IOCB_NOWAIT) - return -EOPNOTSUPP; - write_retry: iolock = XFS_IOLOCK_EXCL; - xfs_ilock(ip, iolock); + ret = xfs_ilock_iocb(ip, iocb->ki_flags, iolock); + if (ret) + return ret; ret = xfs_file_write_checks(iocb, from, &iolock); if (ret) diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 3aa60e53a181..af8c50140f0f 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -881,6 +881,7 @@ xfs_buffered_write_iomap_begin( bool eof = false, cow_eof = false, shared = false; int allocfork = XFS_DATA_FORK; int error = 0; + unsigned int lockmode = XFS_ILOCK_EXCL; if (xfs_is_shutdown(mp)) return -EIO; @@ -892,7 +893,9 @@ xfs_buffered_write_iomap_begin( ASSERT(!XFS_IS_REALTIME_INODE(ip)); - xfs_ilock(ip, XFS_ILOCK_EXCL); + error = xfs_ilock_for_iomap(ip, flags, &lockmode); + if (error) + return error; if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(&ip->i_df)) || XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT)) {