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=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY autolearn=ham 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 229E9C433E1 for ; Wed, 26 Aug 2020 22:05:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7FD5207BC for ; Wed, 26 Aug 2020 22:05:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="FYy8ybJc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726770AbgHZWFa (ORCPT ); Wed, 26 Aug 2020 18:05:30 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:42944 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726753AbgHZWFa (ORCPT ); Wed, 26 Aug 2020 18:05:30 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 07QLxRxL139760; Wed, 26 Aug 2020 22:05:23 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : from : to : cc : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=5fiJeGt5nSlRBdsAO5nHbz/TWQ6RUKwZJ6SGIa15iL8=; b=FYy8ybJcXYA3F92c3BSuRHad/Gdm9WxVT6fAe5HOPmFh0TDGyUtX4gG8Kwuq19OEVNcW r0C+P0QVDOUcFbhqHHSx5/dt+WxzmU9Qf8twMbSZ05RfQ+2yIGVweebfW7yrGEr5LOKU +JGmKCegubwdq/w0PtN2oBVfmPNKrj/fyE9qFbunF9aRjqhl2/sAca7rJFrRx6omHZ78 3y3vzR1ySSsHWtnPw1hvwcrxvQYCKUThosTgZnVk+pF/ygrGa6Y1BI398GnaS9EtMfkq YadJKthik4E24poc1H3OoqMmUezrLvbGg4YMN+jwO5DyIqlOUppDmzVRr+dWzOePwNTI cg== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2120.oracle.com with ESMTP id 333w6u1kht-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 26 Aug 2020 22:05:23 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 07QM5M8F117382; Wed, 26 Aug 2020 22:05:23 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userp3030.oracle.com with ESMTP id 333r9mfv1v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Aug 2020 22:05:22 +0000 Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 07QM5CNV026521; Wed, 26 Aug 2020 22:05:12 GMT Received: from localhost (/10.159.146.4) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 26 Aug 2020 15:05:12 -0700 Subject: [PATCH 02/11] xfs: refactor quota expiration timer modification From: "Darrick J. Wong" To: darrick.wong@oracle.com, david@fromorbit.com, hch@infradead.org Cc: linux-xfs@vger.kernel.org, amir73il@gmail.com, sandeen@sandeen.net Date: Wed, 26 Aug 2020 15:05:11 -0700 Message-ID: <159847951097.2601708.4996467759505702991.stgit@magnolia> In-Reply-To: <159847949739.2601708.16579235017313836378.stgit@magnolia> References: <159847949739.2601708.16579235017313836378.stgit@magnolia> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9725 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 suspectscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 mlxscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008260170 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9725 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 impostorscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 malwarescore=0 spamscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 lowpriorityscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008260169 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: Darrick J. Wong Define explicit limits on the range of quota grace period expiration timeouts and refactor the code that modifies the timeouts into helpers that clamp the values appropriately. Note that we'll refactor the default grace period timer separately. Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_format.h | 24 ++++++++++++++++++++++++ fs/xfs/xfs_dquot.c | 22 ++++++++++++++++++---- fs/xfs/xfs_dquot.h | 2 ++ fs/xfs/xfs_qm.c | 2 ++ fs/xfs/xfs_qm.h | 4 ++++ fs/xfs/xfs_qm_syscalls.c | 16 +++++++++++----- 6 files changed, 61 insertions(+), 9 deletions(-) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index e57360a8fd16..cb316053d3db 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -1199,6 +1199,30 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev) #define XFS_DQTYPE_ANY (XFS_DQTYPE_REC_MASK) +/* + * XFS Quota Timers + * ================ + * + * Traditional quota grace period expiration timers are an unsigned 32-bit + * seconds counter; time zero is the Unix epoch, Jan 1 00:00:01 UTC 1970. + * Note that an expiration value of zero means that the quota limit has not + * been reached, and therefore no expiration has been set. Therefore, the + * ondisk min and max defined here can be used directly to constrain the incore + * quota expiration timestamps on a Unix system. + */ + +/* + * Smallest possible ondisk quota expiration value with traditional timestamps. + * This corresponds exactly with the incore expiration Jan 1 00:00:01 UTC 1970. + */ +#define XFS_DQ_LEGACY_EXPIRY_MIN ((int64_t)1) + +/* + * Largest possible ondisk quota expiration value with traditional timestamps. + * This corresponds exactly with the incore expiration Feb 7 06:28:15 UTC 2106. + */ +#define XFS_DQ_LEGACY_EXPIRY_MAX ((int64_t)U32_MAX) + /* * This is the main portion of the on-disk representation of quota information * for a user. We pad this with some more expansion room to construct the on diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c index bcd73b9c2994..f34841f98d44 100644 --- a/fs/xfs/xfs_dquot.c +++ b/fs/xfs/xfs_dquot.c @@ -98,12 +98,25 @@ xfs_qm_adjust_dqlimits( xfs_dquot_set_prealloc_limits(dq); } +/* Set the expiration time of a quota's grace period. */ +time64_t +xfs_dquot_set_timeout( + struct xfs_mount *mp, + time64_t timeout) +{ + struct xfs_quotainfo *qi = mp->m_quotainfo; + + return clamp_t(time64_t, timeout, qi->qi_expiry_min, + qi->qi_expiry_max); +} + /* * Determine if this quota counter is over either limit and set the quota * timers as appropriate. */ static inline void xfs_qm_adjust_res_timer( + struct xfs_mount *mp, struct xfs_dquot_res *res, struct xfs_quota_limits *qlim) { @@ -112,7 +125,8 @@ xfs_qm_adjust_res_timer( if ((res->softlimit && res->count > res->softlimit) || (res->hardlimit && res->count > res->hardlimit)) { if (res->timer == 0) - res->timer = ktime_get_real_seconds() + qlim->time; + res->timer = xfs_dquot_set_timeout(mp, + ktime_get_real_seconds() + qlim->time); } else { if (res->timer == 0) res->warnings = 0; @@ -145,9 +159,9 @@ xfs_qm_adjust_dqtimers( ASSERT(dq->q_id); defq = xfs_get_defquota(qi, xfs_dquot_type(dq)); - xfs_qm_adjust_res_timer(&dq->q_blk, &defq->blk); - xfs_qm_adjust_res_timer(&dq->q_ino, &defq->ino); - xfs_qm_adjust_res_timer(&dq->q_rtb, &defq->rtb); + xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_blk, &defq->blk); + xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_ino, &defq->ino); + xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_rtb, &defq->rtb); } /* diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h index 282a65da93c7..0e449101c861 100644 --- a/fs/xfs/xfs_dquot.h +++ b/fs/xfs/xfs_dquot.h @@ -237,4 +237,6 @@ typedef int (*xfs_qm_dqiterate_fn)(struct xfs_dquot *dq, int xfs_qm_dqiterate(struct xfs_mount *mp, xfs_dqtype_t type, xfs_qm_dqiterate_fn iter_fn, void *priv); +time64_t xfs_dquot_set_timeout(struct xfs_mount *mp, time64_t timeout); + #endif /* __XFS_DQUOT_H__ */ diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index be67570badf8..b83a12ecfc35 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -661,6 +661,8 @@ xfs_qm_init_quotainfo( /* Precalc some constants */ qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); + qinf->qi_expiry_min = XFS_DQ_LEGACY_EXPIRY_MIN; + qinf->qi_expiry_max = XFS_DQ_LEGACY_EXPIRY_MAX; mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h index 9c078c35d924..e3dabab44097 100644 --- a/fs/xfs/xfs_qm.h +++ b/fs/xfs/xfs_qm.h @@ -65,6 +65,10 @@ struct xfs_quotainfo { struct xfs_def_quota qi_grp_default; struct xfs_def_quota qi_prj_default; struct shrinker qi_shrinker; + + /* Minimum and maximum quota expiration timestamp values. */ + time64_t qi_expiry_min; + time64_t qi_expiry_max; }; static inline struct radix_tree_root * diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c index 1c542b4a5220..750f775ae915 100644 --- a/fs/xfs/xfs_qm_syscalls.c +++ b/fs/xfs/xfs_qm_syscalls.c @@ -479,13 +479,19 @@ xfs_setqlim_warns( static inline void xfs_setqlim_timer( + struct xfs_mount *mp, struct xfs_dquot_res *res, struct xfs_quota_limits *qlim, s64 timer) { - res->timer = timer; - if (qlim) + if (qlim) { + /* Set the length of the default grace period. */ + res->timer = timer; qlim->time = timer; + } else { + /* Set the grace period expiration on a quota. */ + res->timer = xfs_dquot_set_timeout(mp, timer); + } } /* @@ -574,7 +580,7 @@ xfs_qm_scall_setqlim( if (newlim->d_fieldmask & QC_SPC_WARNS) xfs_setqlim_warns(res, qlim, newlim->d_spc_warns); if (newlim->d_fieldmask & QC_SPC_TIMER) - xfs_setqlim_timer(res, qlim, newlim->d_spc_timer); + xfs_setqlim_timer(mp, res, qlim, newlim->d_spc_timer); /* Blocks on the realtime device. */ hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ? @@ -590,7 +596,7 @@ xfs_qm_scall_setqlim( if (newlim->d_fieldmask & QC_RT_SPC_WARNS) xfs_setqlim_warns(res, qlim, newlim->d_rt_spc_warns); if (newlim->d_fieldmask & QC_RT_SPC_TIMER) - xfs_setqlim_timer(res, qlim, newlim->d_rt_spc_timer); + xfs_setqlim_timer(mp, res, qlim, newlim->d_rt_spc_timer); /* Inodes */ hard = (newlim->d_fieldmask & QC_INO_HARD) ? @@ -606,7 +612,7 @@ xfs_qm_scall_setqlim( if (newlim->d_fieldmask & QC_INO_WARNS) xfs_setqlim_warns(res, qlim, newlim->d_ino_warns); if (newlim->d_fieldmask & QC_INO_TIMER) - xfs_setqlim_timer(res, qlim, newlim->d_ino_timer); + xfs_setqlim_timer(mp, res, qlim, newlim->d_ino_timer); if (id != 0) { /*