From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com, david@fromorbit.com, hch@infradead.org
Cc: Christoph Hellwig <hch@lst.de>, Gao Xiang <hsiangkao@redhat.com>,
linux-xfs@vger.kernel.org, amir73il@gmail.com,
sandeen@sandeen.net
Subject: [PATCH 07/11] xfs: redefine xfs_ictimestamp_t
Date: Tue, 01 Sep 2020 19:57:16 -0700 [thread overview]
Message-ID: <159901543615.548109.11336095414072971331.stgit@magnolia> (raw)
In-Reply-To: <159901538766.548109.8040337941204954344.stgit@magnolia>
From: Darrick J. Wong <darrick.wong@oracle.com>
Redefine xfs_ictimestamp_t as a uint64_t typedef in preparation for the
bigtime functionality. Preserve the legacy structure format so that we
can let the compiler take care of the masking and shifting.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
---
fs/xfs/libxfs/xfs_log_format.h | 7 +++++--
fs/xfs/xfs_inode_item.c | 30 ++++++++++++++++++++++--------
fs/xfs/xfs_inode_item_recover.c | 6 ++++--
fs/xfs/xfs_ondisk.h | 3 ++-
4 files changed, 33 insertions(+), 13 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index e3400c9c71cd..8bd00da6d2a4 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -368,10 +368,13 @@ static inline int xfs_ilog_fdata(int w)
* directly mirrors the xfs_dinode structure as it must contain all the same
* information.
*/
-typedef struct xfs_ictimestamp {
+typedef uint64_t xfs_ictimestamp_t;
+
+/* Legacy timestamp encoding format. */
+struct xfs_legacy_ictimestamp {
int32_t t_sec; /* timestamp seconds */
int32_t t_nsec; /* timestamp nanoseconds */
-} xfs_ictimestamp_t;
+};
/*
* Define the format of the inode core that is logged. This structure must be
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 6c65938cee1c..c1be13ca64b9 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -295,6 +295,24 @@ xfs_inode_item_format_attr_fork(
}
}
+/*
+ * Convert an incore timestamp to a log timestamp. Note that the log format
+ * specifies host endian format!
+ */
+static inline xfs_ictimestamp_t
+xfs_inode_to_log_dinode_ts(
+ const struct timespec64 tv)
+{
+ struct xfs_legacy_ictimestamp *lits;
+ xfs_ictimestamp_t its;
+
+ lits = (struct xfs_legacy_ictimestamp *)&its;
+ lits->t_sec = tv.tv_sec;
+ lits->t_nsec = tv.tv_nsec;
+
+ return its;
+}
+
static void
xfs_inode_to_log_dinode(
struct xfs_inode *ip,
@@ -313,12 +331,9 @@ xfs_inode_to_log_dinode(
memset(to->di_pad, 0, sizeof(to->di_pad));
memset(to->di_pad3, 0, sizeof(to->di_pad3));
- to->di_atime.t_sec = inode->i_atime.tv_sec;
- to->di_atime.t_nsec = inode->i_atime.tv_nsec;
- to->di_mtime.t_sec = inode->i_mtime.tv_sec;
- to->di_mtime.t_nsec = inode->i_mtime.tv_nsec;
- to->di_ctime.t_sec = inode->i_ctime.tv_sec;
- to->di_ctime.t_nsec = inode->i_ctime.tv_nsec;
+ to->di_atime = xfs_inode_to_log_dinode_ts(inode->i_atime);
+ to->di_mtime = xfs_inode_to_log_dinode_ts(inode->i_mtime);
+ to->di_ctime = xfs_inode_to_log_dinode_ts(inode->i_ctime);
to->di_nlink = inode->i_nlink;
to->di_gen = inode->i_generation;
to->di_mode = inode->i_mode;
@@ -340,8 +355,7 @@ xfs_inode_to_log_dinode(
if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
to->di_version = 3;
to->di_changecount = inode_peek_iversion(inode);
- to->di_crtime.t_sec = from->di_crtime.tv_sec;
- to->di_crtime.t_nsec = from->di_crtime.tv_nsec;
+ to->di_crtime = xfs_inode_to_log_dinode_ts(from->di_crtime);
to->di_flags2 = from->di_flags2;
to->di_cowextsize = from->di_cowextsize;
to->di_ino = ip->i_ino;
diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
index 03fab432df38..4e895c9ad4d7 100644
--- a/fs/xfs/xfs_inode_item_recover.c
+++ b/fs/xfs/xfs_inode_item_recover.c
@@ -121,11 +121,13 @@ xfs_log_dinode_to_disk_ts(
const xfs_ictimestamp_t its)
{
struct xfs_legacy_timestamp *lts;
+ struct xfs_legacy_ictimestamp *lits;
xfs_timestamp_t ts;
lts = (struct xfs_legacy_timestamp *)&ts;
- lts->t_sec = cpu_to_be32(its.t_sec);
- lts->t_nsec = cpu_to_be32(its.t_nsec);
+ lits = (struct xfs_legacy_ictimestamp *)&its;
+ lts->t_sec = cpu_to_be32(lits->t_sec);
+ lts->t_nsec = cpu_to_be32(lits->t_nsec);
return ts;
}
diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h
index 4e5f51d07d8d..cfa54d6b7c11 100644
--- a/fs/xfs/xfs_ondisk.h
+++ b/fs/xfs/xfs_ondisk.h
@@ -122,7 +122,8 @@ xfs_check_ondisk_structs(void)
XFS_CHECK_STRUCT_SIZE(struct xfs_extent_64, 16);
XFS_CHECK_STRUCT_SIZE(struct xfs_log_dinode, 176);
XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log, 28);
- XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp, 8);
+ XFS_CHECK_STRUCT_SIZE(xfs_ictimestamp_t, 8);
+ XFS_CHECK_STRUCT_SIZE(struct xfs_legacy_ictimestamp, 8);
XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32, 52);
XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format, 56);
XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat, 20);
next prev parent reply other threads:[~2020-09-02 2:57 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 2:56 [PATCH v6 00/11] xfs: widen timestamps to deal with y2038 Darrick J. Wong
2020-09-02 2:56 ` [PATCH 01/11] xfs: explicitly define inode timestamp range Darrick J. Wong
2020-09-02 2:56 ` [PATCH 02/11] xfs: refactor quota expiration timer modification Darrick J. Wong
2020-09-02 2:56 ` [PATCH 03/11] xfs: refactor default quota grace period setting code Darrick J. Wong
2020-09-02 2:56 ` [PATCH 04/11] xfs: refactor quota timestamp coding Darrick J. Wong
2020-09-02 2:57 ` [PATCH 05/11] xfs: move xfs_log_dinode_to_disk to the log recovery code Darrick J. Wong
2020-09-02 2:57 ` [PATCH 06/11] xfs: redefine xfs_timestamp_t Darrick J. Wong
2020-09-02 2:57 ` Darrick J. Wong [this message]
2020-09-02 2:57 ` [PATCH 08/11] xfs: widen ondisk inode timestamps to deal with y2038+ Darrick J. Wong
2020-09-02 2:57 ` [PATCH 09/11] xfs: widen ondisk quota expiration timestamps to handle y2038+ Darrick J. Wong
2020-09-02 2:57 ` [PATCH 10/11] xfs: trace timestamp limits Darrick J. Wong
2020-09-02 2:57 ` [PATCH 11/11] xfs: enable big timestamps Darrick J. Wong
2020-09-06 21:43 ` [PATCH v6 00/11] xfs: widen timestamps to deal with y2038 Dave Chinner
-- strict thread matches above, loose matches on Subject: below --
2020-08-31 6:06 [PATCH v5 " Darrick J. Wong
2020-08-31 6:07 ` [PATCH 07/11] xfs: redefine xfs_ictimestamp_t Darrick J. Wong
2020-08-31 16:04 ` Christoph Hellwig
2020-09-01 9:04 ` Gao Xiang
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