From patchwork Mon Oct 26 23:36:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 11859125 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1F2D2921 for ; Mon, 26 Oct 2020 23:38:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F150720872 for ; Mon, 26 Oct 2020 23:38:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="robakn1D" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407255AbgJZXij (ORCPT ); Mon, 26 Oct 2020 19:38:39 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:57210 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407243AbgJZXij (ORCPT ); Mon, 26 Oct 2020 19:38:39 -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 09QNOXV4164621; Mon, 26 Oct 2020 23:38:37 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=pKzxnciog0z9E0H0JVaHdXbFEFEUWFlSHyBURI9Ej5o=; b=robakn1DRYW0RaNLZq8KqbWNOlFkMaGMLC3rVOEOe7uWElc2UGJHE3uFxDIXBy6r4iuC SVJiFsUSjBW4wlqUbG7jWXoZXaWqeDInBIhSfOwluRznJKKFFdu/jtm3GbkScafzITgN 4SYhG36OCuCbMrnrKgAGhTekfnYXYUfoyAoTJeRtlaJb5bsk7l68w6cjoWimB4KKJRvx +oOigWzKwxFeUTcI9AvO5gyQJecfOTcxNnJAW9Vem9Yszjjiz69P60qD3xzYcXmPVtaY F0nLnAvAeyQXqb02LKaYHDeaQwXkYe/P2h4ekrae0eVt2SEyz9E5jvc5H3mwQIlXEFxG gA== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2120.oracle.com with ESMTP id 34dgm3vuxt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 26 Oct 2020 23:38:36 +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 09QNPGLj121126; Mon, 26 Oct 2020 23:36:36 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3030.oracle.com with ESMTP id 34cx6va6vm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 26 Oct 2020 23:36:36 +0000 Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 09QNaZH4029640; Mon, 26 Oct 2020 23:36:35 GMT Received: from localhost (/10.159.145.170) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 26 Oct 2020 16:36:35 -0700 Subject: [PATCH 23/26] xfs_quota: support editing and reporting quotas with bigtime From: "Darrick J. Wong" To: sandeen@sandeen.net, darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org Date: Mon, 26 Oct 2020 16:36:34 -0700 Message-ID: <160375539460.881414.16375144747744518990.stgit@magnolia> In-Reply-To: <160375524618.881414.16347303401529121282.stgit@magnolia> References: <160375524618.881414.16347303401529121282.stgit@magnolia> User-Agent: StGit/0.19 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9786 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 spamscore=0 bulkscore=0 malwarescore=0 mlxlogscore=999 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010260153 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9786 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 impostorscore=0 adultscore=0 bulkscore=0 spamscore=0 phishscore=0 mlxlogscore=999 suspectscore=0 clxscore=1015 mlxscore=0 malwarescore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2010260153 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: Darrick J. Wong Enhance xfs_quota to detect and report grace period expirations past 2038. Signed-off-by: Darrick J. Wong Reviewed-by: Christoph Hellwig --- include/xqm.h | 20 ++++++++++++++++- quota/edit.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++----- quota/quota.c | 6 +++-- quota/quota.h | 7 ++++++ quota/report.c | 6 +++-- 5 files changed, 91 insertions(+), 13 deletions(-) diff --git a/include/xqm.h b/include/xqm.h index 8ab19072656e..573441db9860 100644 --- a/include/xqm.h +++ b/include/xqm.h @@ -47,7 +47,10 @@ typedef struct fs_disk_quota { __s32 d_btimer; /* similar to above; for disk blocks */ __u16 d_iwarns; /* # warnings issued wrt num inodes */ __u16 d_bwarns; /* # warnings issued wrt disk blocks */ - __s32 d_padding2; /* padding2 - for future use */ + __s8 d_itimer_hi; /* upper 8 bits of timer values */ + __s8 d_btimer_hi; + __s8 d_rtbtimer_hi; + __s8 d_padding2; /* padding2 - for future use */ __u64 d_rtb_hardlimit;/* absolute limit on realtime blks */ __u64 d_rtb_softlimit;/* preferred limit on RT disk blks */ __u64 d_rtbcount; /* # realtime blocks owned */ @@ -93,6 +96,21 @@ typedef struct fs_disk_quota { #define FS_DQ_RTBWARNS (1<<11) #define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS) +/* + * Accounting values. These can only be set for filesystem with + * non-transactional quotas that require quotacheck(8) in userspace. + */ +#define FS_DQ_BCOUNT (1<<12) +#define FS_DQ_ICOUNT (1<<13) +#define FS_DQ_RTBCOUNT (1<<14) +#define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT) + +/* + * Quota expiration timestamps are 40-bit signed integers, with the upper 8 + * bits encoded in the _hi fields. + */ +#define FS_DQ_BIGTIME (1<<15) + /* * Various flags related to quotactl(2). Only relevant to XFS filesystems. */ diff --git a/quota/edit.c b/quota/edit.c index b3cad024b1f1..1a3b2d9f959b 100644 --- a/quota/edit.c +++ b/quota/edit.c @@ -417,6 +417,53 @@ restore_f( return 0; } +time64_t +decode_timer( + const struct fs_disk_quota *d, + __s32 timer_lo, + __s8 timer_hi) +{ + if (d->d_fieldmask & FS_DQ_BIGTIME) + return (uint32_t)timer_lo | (int64_t)timer_hi << 32; + return timer_lo; +} + +static inline void +encode_timer( + const struct fs_disk_quota *d, + __s32 *timer_lo, + __s8 *timer_hi, + time64_t timer) +{ + *timer_lo = timer; + if (d->d_fieldmask & FS_DQ_BIGTIME) + *timer_hi = timer >> 32; + else + *timer_hi = 0; +} + +static inline bool want_bigtime(time64_t timer) +{ + return timer > INT32_MAX || timer < INT32_MIN; +} + +static void +encode_timers( + struct fs_disk_quota *d, + time64_t btimer, + time64_t itimer, + time64_t rtbtimer) +{ + d->d_fieldmask &= ~FS_DQ_BIGTIME; + if (want_bigtime(btimer) || want_bigtime(itimer) || + want_bigtime(rtbtimer)) + d->d_fieldmask |= FS_DQ_BIGTIME; + + encode_timer(d, &d->d_btimer, &d->d_btimer_hi, btimer); + encode_timer(d, &d->d_itimer, &d->d_itimer_hi, itimer); + encode_timer(d, &d->d_rtbtimer, &d->d_rtbtimer_hi, rtbtimer); +} + static void set_timer( uint32_t id, @@ -426,6 +473,7 @@ set_timer( time64_t value) { struct fs_disk_quota d; + time64_t btimer, itimer, rtbtimer; memset(&d, 0, sizeof(d)); @@ -446,23 +494,28 @@ set_timer( time(&now); + btimer = decode_timer(&d, d.d_btimer, d.d_btimer_hi); + itimer = decode_timer(&d, d.d_itimer, d.d_itimer_hi); + rtbtimer = decode_timer(&d, d.d_rtbtimer, d.d_rtbtimer_hi); + /* Only set grace time if user is already past soft limit */ if (d.d_blk_softlimit && d.d_bcount > d.d_blk_softlimit) - d.d_btimer = now + value; + btimer = now + value; if (d.d_ino_softlimit && d.d_icount > d.d_ino_softlimit) - d.d_itimer = now + value; + itimer = now + value; if (d.d_rtb_softlimit && d.d_rtbcount > d.d_rtb_softlimit) - d.d_rtbtimer = now + value; + rtbtimer = now + value; } else { - d.d_btimer = value; - d.d_itimer = value; - d.d_rtbtimer = value; + btimer = value; + itimer = value; + rtbtimer = value; } d.d_version = FS_DQUOT_VERSION; d.d_flags = type; d.d_fieldmask = mask; d.d_id = id; + encode_timers(&d, btimer, itimer, rtbtimer); if (xfsquotactl(XFS_SETQLIM, dev, type, id, (void *)&d) < 0) { exitcode = 1; diff --git a/quota/quota.c b/quota/quota.c index 8ba0995d9174..0747cedcb8c2 100644 --- a/quota/quota.c +++ b/quota/quota.c @@ -101,7 +101,7 @@ quota_mount( } if (form & XFS_BLOCK_QUOTA) { - timer = d.d_btimer; + timer = decode_timer(&d, d.d_btimer, d.d_btimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_blk_hardlimit && d.d_bcount > d.d_blk_hardlimit) qflags |= LIMIT_FLAG; @@ -123,7 +123,7 @@ quota_mount( time_to_string(timer, qflags)); } if (form & XFS_INODE_QUOTA) { - timer = d.d_itimer; + timer = decode_timer(&d, d.d_itimer, d.d_itimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_ino_hardlimit && d.d_icount > d.d_ino_hardlimit) qflags |= LIMIT_FLAG; @@ -145,7 +145,7 @@ quota_mount( time_to_string(timer, qflags)); } if (form & XFS_RTBLOCK_QUOTA) { - timer = d.d_rtbtimer; + timer = decode_timer(&d, d.d_rtbtimer, d.d_rtbtimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_rtb_hardlimit && d.d_rtbcount > d.d_rtb_hardlimit) qflags |= LIMIT_FLAG; diff --git a/quota/quota.h b/quota/quota.h index 11f62b208e6a..78b0d66d2a4f 100644 --- a/quota/quota.h +++ b/quota/quota.h @@ -3,6 +3,8 @@ * Copyright (c) 2005 Silicon Graphics, Inc. * All Rights Reserved. */ +#ifndef XFS_QUOTA_QUOTA_H_ +#define XFS_QUOTA_QUOTA_H_ #include "xqm.h" #include "libfrog/paths.h" @@ -73,3 +75,8 @@ extern char *uid_to_name(uint32_t __uid); extern char *gid_to_name(uint32_t __gid); extern char *prid_to_name(uint32_t __prid); extern bool isdigits_only(const char *); + +time64_t decode_timer(const struct fs_disk_quota *d, __s32 timer_lo, + __s8 timer_hi); + +#endif /* XFS_QUOTA_QUOTA_H_ */ diff --git a/quota/report.c b/quota/report.c index 2d5024e95177..6ac5549097b7 100644 --- a/quota/report.c +++ b/quota/report.c @@ -398,7 +398,7 @@ report_mount( } if (form & XFS_BLOCK_QUOTA) { - timer = d.d_btimer; + timer = decode_timer(&d, d.d_btimer, d.d_btimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_blk_hardlimit && d.d_bcount > d.d_blk_hardlimit) qflags |= LIMIT_FLAG; @@ -420,7 +420,7 @@ report_mount( time_to_string(timer, qflags)); } if (form & XFS_INODE_QUOTA) { - timer = d.d_itimer; + timer = decode_timer(&d, d.d_itimer, d.d_itimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_ino_hardlimit && d.d_icount > d.d_ino_hardlimit) qflags |= LIMIT_FLAG; @@ -442,7 +442,7 @@ report_mount( time_to_string(timer, qflags)); } if (form & XFS_RTBLOCK_QUOTA) { - timer = d.d_rtbtimer; + timer = decode_timer(&d, d.d_rtbtimer, d.d_rtbtimer_hi); qflags = (flags & HUMAN_FLAG); if (d.d_rtb_hardlimit && d.d_rtbcount > d.d_rtb_hardlimit) qflags |= LIMIT_FLAG;