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 6FA20C433DF for ; Wed, 26 Aug 2020 22:05:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BD24207BC for ; Wed, 26 Aug 2020 22:05:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="qm8Ekveg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726784AbgHZWFq (ORCPT ); Wed, 26 Aug 2020 18:05:46 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:43108 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726753AbgHZWFq (ORCPT ); Wed, 26 Aug 2020 18:05:46 -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 07QLxP3M139757; Wed, 26 Aug 2020 22:05:40 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=cPbZWBm9btNOD0DT6w+tOW6VBA7+JMWPMXHMwn4CJgE=; b=qm8EkvegYXWiMOuYi2ROAHak8YffeFKYx+ASKJwLXY958X4xUxgvTb+cgncyJeedwCJR sQIT6wEuxmtJzT4tQNgVhH7OEmUA5qbNO+DXblXsOh2tkcBE4ZV/Osj8ILTQoE/TZTlI ZnVD+1S6M7D8NOeH3i7exHWvX5ZPmqS/J7iCp2bX11WRRA9/UL8lVEIHANVhBT25f0i/ 32MZ8jbw/VFpSC09gvPcw2H8SpNzEZ1EEd8TGGak7EnhgSfrNceOqTQ6r7wnXg5dbOyu /dMhl8ntCJKm8VNtPmifUp+x+9U1A44sdpT7OGGq24HTUPhHEUiNHJ6pfdr4okihO0s+ XQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2120.oracle.com with ESMTP id 333w6u1kjm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 26 Aug 2020 22:05:40 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 07QM0I66004030; Wed, 26 Aug 2020 22:05:39 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserp3020.oracle.com with ESMTP id 333rubberu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Aug 2020 22:05:39 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 07QM5c2v027437; Wed, 26 Aug 2020 22:05:38 GMT Received: from localhost (/10.159.146.4) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 26 Aug 2020 15:05:38 -0700 Subject: [PATCH 06/11] xfs: kill struct xfs_timestamp 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 15:05:36 -0700 Message-ID: <159847953684.2601708.8165492597542894989.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 mlxlogscore=999 phishscore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008260169 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 Replace this struct with an encoded __be64 value and add conversion helpers to deal with the change. Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_format.h | 8 ++--- fs/xfs/libxfs/xfs_inode_buf.c | 62 +++++++++++++++++++++++++++++---------- fs/xfs/libxfs/xfs_inode_buf.h | 2 + fs/xfs/scrub/inode.c | 25 +++++++++++----- fs/xfs/xfs_inode_item_recover.c | 26 +++++++++++----- fs/xfs/xfs_ondisk.h | 2 + 6 files changed, 87 insertions(+), 38 deletions(-) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 4b68a473b090..96734ba9aa5f 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -856,12 +856,10 @@ struct xfs_agfl { * seconds and nanoseconds; time zero is the Unix epoch, Jan 1 00:00:00 UTC * 1970, which means that the timestamp epoch is the same as the Unix epoch. * Therefore, the ondisk min and max defined here can be used directly to - * constrain the incore timestamps on a Unix system. + * constrain the incore timestamps on a Unix system. Note that we actually + * encode a __be64 value on disk. */ -typedef struct xfs_timestamp { - __be32 t_sec; /* timestamp seconds */ - __be32 t_nsec; /* timestamp nanoseconds */ -} xfs_timestamp_t; +typedef __be64 xfs_timestamp_t; /* * Smallest possible ondisk seconds value with traditional timestamps. This diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index fa83591ca89b..1e65e28a9386 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -157,6 +157,26 @@ xfs_imap_to_bp( return 0; } +/* + * Convert an ondisk timestamp to an incore timestamp. + * + * For traditional timestamps, the ondisk format specifies that the seconds + * are stored in the first four bytes and the nanoseconds in the second four. + * Let the be64 conversion rotate the seconds field into the upper 32-bits, + * then shift and mask to extract the two values. + */ +struct timespec64 +xfs_inode_from_disk_ts( + const xfs_timestamp_t ts) +{ + struct timespec64 tv; + uint64_t t = be64_to_cpu(ts); + + tv.tv_sec = (int64_t)t >> 32; + tv.tv_nsec = (int32_t)(t & 0xffffffff); + return tv; +} + int xfs_inode_from_disk( struct xfs_inode *ip, @@ -211,12 +231,9 @@ xfs_inode_from_disk( * a time before epoch is converted to a time long after epoch * on 64 bit systems. */ - inode->i_atime.tv_sec = (int)be32_to_cpu(from->di_atime.t_sec); - inode->i_atime.tv_nsec = (int)be32_to_cpu(from->di_atime.t_nsec); - inode->i_mtime.tv_sec = (int)be32_to_cpu(from->di_mtime.t_sec); - inode->i_mtime.tv_nsec = (int)be32_to_cpu(from->di_mtime.t_nsec); - inode->i_ctime.tv_sec = (int)be32_to_cpu(from->di_ctime.t_sec); - inode->i_ctime.tv_nsec = (int)be32_to_cpu(from->di_ctime.t_nsec); + inode->i_atime = xfs_inode_from_disk_ts(from->di_atime); + inode->i_mtime = xfs_inode_from_disk_ts(from->di_mtime); + inode->i_ctime = xfs_inode_from_disk_ts(from->di_ctime); to->di_size = be64_to_cpu(from->di_size); to->di_nblocks = be64_to_cpu(from->di_nblocks); @@ -229,8 +246,7 @@ xfs_inode_from_disk( if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) { inode_set_iversion_queried(inode, be64_to_cpu(from->di_changecount)); - to->di_crtime.tv_sec = be32_to_cpu(from->di_crtime.t_sec); - to->di_crtime.tv_nsec = be32_to_cpu(from->di_crtime.t_nsec); + to->di_crtime = xfs_inode_from_disk_ts(from->di_crtime); to->di_flags2 = be64_to_cpu(from->di_flags2); to->di_cowextsize = be32_to_cpu(from->di_cowextsize); } @@ -252,6 +268,24 @@ xfs_inode_from_disk( return error; } +/* + * Convert an incore timestamp to an ondisk timestamp. + * + * For traditional timestamps, the ondisk format specifies that the seconds + * are stored in the first four bytes and the nanoseconds in the second four. + * Shift the seconds into the upper 32-bits so that the be64 conversion will + * take care of rotating the bytes for us. + */ +static inline xfs_timestamp_t +xfs_inode_to_disk_ts( + const struct timespec64 tv) +{ + uint64_t t; + + t = ((int64_t)tv.tv_sec << 32) | (tv.tv_nsec & 0xffffffff); + return cpu_to_be64(t); +} + void xfs_inode_to_disk( struct xfs_inode *ip, @@ -271,12 +305,9 @@ xfs_inode_to_disk( to->di_projid_hi = cpu_to_be16(from->di_projid >> 16); memset(to->di_pad, 0, sizeof(to->di_pad)); - to->di_atime.t_sec = cpu_to_be32(inode->i_atime.tv_sec); - to->di_atime.t_nsec = cpu_to_be32(inode->i_atime.tv_nsec); - to->di_mtime.t_sec = cpu_to_be32(inode->i_mtime.tv_sec); - to->di_mtime.t_nsec = cpu_to_be32(inode->i_mtime.tv_nsec); - to->di_ctime.t_sec = cpu_to_be32(inode->i_ctime.tv_sec); - to->di_ctime.t_nsec = cpu_to_be32(inode->i_ctime.tv_nsec); + to->di_atime = xfs_inode_to_disk_ts(inode->i_atime); + to->di_mtime = xfs_inode_to_disk_ts(inode->i_mtime); + to->di_ctime = xfs_inode_to_disk_ts(inode->i_ctime); to->di_nlink = cpu_to_be32(inode->i_nlink); to->di_gen = cpu_to_be32(inode->i_generation); to->di_mode = cpu_to_be16(inode->i_mode); @@ -295,8 +326,7 @@ xfs_inode_to_disk( if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) { to->di_version = 3; to->di_changecount = cpu_to_be64(inode_peek_iversion(inode)); - to->di_crtime.t_sec = cpu_to_be32(from->di_crtime.tv_sec); - to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.tv_nsec); + to->di_crtime = xfs_inode_to_disk_ts(from->di_crtime); to->di_flags2 = cpu_to_be64(from->di_flags2); to->di_cowextsize = cpu_to_be32(from->di_cowextsize); to->di_ino = cpu_to_be64(ip->i_ino); diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h index 89f7bea8efd6..3060ecd24a2e 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.h +++ b/fs/xfs/libxfs/xfs_inode_buf.h @@ -58,4 +58,6 @@ xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, uint32_t cowextsize, uint16_t mode, uint16_t flags, uint64_t flags2); +struct timespec64 xfs_inode_from_disk_ts(const xfs_timestamp_t ts); + #endif /* __XFS_INODE_BUF_H__ */ diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c index 6d483ab29e63..eb1cc013d4ca 100644 --- a/fs/xfs/scrub/inode.c +++ b/fs/xfs/scrub/inode.c @@ -195,6 +195,19 @@ xchk_inode_flags2( xchk_ino_set_corrupt(sc, ino); } +static inline void +xchk_dinode_nsec( + struct xfs_scrub *sc, + xfs_ino_t ino, + const xfs_timestamp_t ts) +{ + struct timespec64 tv; + + tv = xfs_inode_from_disk_ts(ts); + if (tv.tv_nsec < 0 || tv.tv_nsec >= NSEC_PER_SEC) + xchk_ino_set_corrupt(sc, ino); +} + /* Scrub all the ondisk inode fields. */ STATIC void xchk_dinode( @@ -293,12 +306,9 @@ xchk_dinode( } /* di_[amc]time.nsec */ - if (be32_to_cpu(dip->di_atime.t_nsec) >= NSEC_PER_SEC) - xchk_ino_set_corrupt(sc, ino); - if (be32_to_cpu(dip->di_mtime.t_nsec) >= NSEC_PER_SEC) - xchk_ino_set_corrupt(sc, ino); - if (be32_to_cpu(dip->di_ctime.t_nsec) >= NSEC_PER_SEC) - xchk_ino_set_corrupt(sc, ino); + xchk_dinode_nsec(sc, ino, dip->di_atime); + xchk_dinode_nsec(sc, ino, dip->di_mtime); + xchk_dinode_nsec(sc, ino, dip->di_ctime); /* * di_size. xfs_dinode_verify checks for things that screw up @@ -403,8 +413,7 @@ xchk_dinode( } if (dip->di_version >= 3) { - if (be32_to_cpu(dip->di_crtime.t_nsec) >= NSEC_PER_SEC) - xchk_ino_set_corrupt(sc, ino); + xchk_dinode_nsec(sc, ino, dip->di_crtime); xchk_inode_flags2(sc, dip, ino, mode, flags, flags2); xchk_inode_cowextsize(sc, dip, ino, mode, flags, flags2); diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c index 1e417ace2912..e7c6f2b95e17 100644 --- a/fs/xfs/xfs_inode_item_recover.c +++ b/fs/xfs/xfs_inode_item_recover.c @@ -115,6 +115,20 @@ xfs_recover_inode_owner_change( return error; } +/* + * Convert a log timestamp to an ondisk timestamp. See notes about the ondisk + * encoding in the comments for xfs_inode_to_disk_ts. + */ +static inline xfs_timestamp_t +xfs_log_dinode_to_disk_ts( + const xfs_ictimestamp_t its) +{ + uint64_t t; + + t = ((int64_t)its.t_sec << 32) | (its.t_nsec & 0xffffffff); + return cpu_to_be64(t); +} + STATIC void xfs_log_dinode_to_disk( struct xfs_log_dinode *from, @@ -132,12 +146,9 @@ xfs_log_dinode_to_disk( to->di_projid_hi = cpu_to_be16(from->di_projid_hi); memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad)); - to->di_atime.t_sec = cpu_to_be32(from->di_atime.t_sec); - to->di_atime.t_nsec = cpu_to_be32(from->di_atime.t_nsec); - to->di_mtime.t_sec = cpu_to_be32(from->di_mtime.t_sec); - to->di_mtime.t_nsec = cpu_to_be32(from->di_mtime.t_nsec); - to->di_ctime.t_sec = cpu_to_be32(from->di_ctime.t_sec); - to->di_ctime.t_nsec = cpu_to_be32(from->di_ctime.t_nsec); + to->di_atime = xfs_log_dinode_to_disk_ts(from->di_atime); + to->di_mtime = xfs_log_dinode_to_disk_ts(from->di_mtime); + to->di_ctime = xfs_log_dinode_to_disk_ts(from->di_ctime); to->di_size = cpu_to_be64(from->di_size); to->di_nblocks = cpu_to_be64(from->di_nblocks); @@ -153,8 +164,7 @@ xfs_log_dinode_to_disk( if (from->di_version == 3) { to->di_changecount = cpu_to_be64(from->di_changecount); - to->di_crtime.t_sec = cpu_to_be32(from->di_crtime.t_sec); - to->di_crtime.t_nsec = cpu_to_be32(from->di_crtime.t_nsec); + to->di_crtime = xfs_log_dinode_to_disk_ts(from->di_crtime); to->di_flags2 = cpu_to_be64(from->di_flags2); to->di_cowextsize = cpu_to_be32(from->di_cowextsize); to->di_ino = cpu_to_be64(from->di_ino); diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h index acb9b737fe6b..2f11a6f9e005 100644 --- a/fs/xfs/xfs_ondisk.h +++ b/fs/xfs/xfs_ondisk.h @@ -41,7 +41,7 @@ xfs_check_ondisk_structs(void) XFS_CHECK_STRUCT_SIZE(struct xfs_refcount_rec, 12); XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_key, 20); XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_rec, 24); - XFS_CHECK_STRUCT_SIZE(struct xfs_timestamp, 8); + XFS_CHECK_STRUCT_SIZE(xfs_timestamp_t, 8); XFS_CHECK_STRUCT_SIZE(xfs_alloc_key_t, 8); XFS_CHECK_STRUCT_SIZE(xfs_alloc_ptr_t, 4); XFS_CHECK_STRUCT_SIZE(xfs_alloc_rec_t, 8);