diff options
| author | Darrick J. Wong | 2020-08-17 09:59:07 -0700 |
|---|---|---|
| committer | Darrick J. Wong | 2020-09-15 20:52:41 -0700 |
| commit | f93e5436f0ee5a85eaa3a86d2614d215873fb18b (patch) | |
| tree | ce60a83ad06e42b199e2ebb14fa62e33be7f6955 /fs/xfs/xfs_super.c | |
| parent | 30e05599219f3c15bd5f24190af0e33cdb4a00e5 (diff) | |
xfs: widen ondisk inode timestamps to deal with y2038+
Redesign the ondisk inode timestamps to be a simple unsigned 64-bit
counter of nanoseconds since 14 Dec 1901 (i.e. the minimum time in the
32-bit unix time epoch). This enables us to handle dates up to 2486,
which solves the y2038 problem.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_super.c')
| -rw-r--r-- | fs/xfs/xfs_super.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 2981743def87..19382d604412 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1484,8 +1484,13 @@ xfs_fc_fill_super( sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_max_links = XFS_MAXLINK; sb->s_time_gran = 1; - sb->s_time_min = XFS_LEGACY_TIME_MIN; - sb->s_time_max = XFS_LEGACY_TIME_MAX; + if (xfs_sb_version_hasbigtime(&mp->m_sb)) { + sb->s_time_min = xfs_bigtime_to_unix(XFS_BIGTIME_TIME_MIN); + sb->s_time_max = xfs_bigtime_to_unix(XFS_BIGTIME_TIME_MAX); + } else { + sb->s_time_min = XFS_LEGACY_TIME_MIN; + sb->s_time_max = XFS_LEGACY_TIME_MAX; + } sb->s_iflags |= SB_I_CGROUPWB; set_posix_acl_flag(sb); @@ -1494,6 +1499,10 @@ xfs_fc_fill_super( if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5) sb->s_flags |= SB_I_VERSION; + if (xfs_sb_version_hasbigtime(&mp->m_sb)) + xfs_warn(mp, + "EXPERIMENTAL big timestamp feature in use. Use at your own risk!"); + if (mp->m_flags & XFS_MOUNT_DAX_ALWAYS) { bool rtdev_is_dax = false, datadev_is_dax; |