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xfs: widen ondisk inode timestamps to deal with y2038+

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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>
This commit is contained in:
Darrick J. Wong
2020-08-17 09:59:07 -07:00
parent 30e0559921
commit f93e5436f0
16 changed files with 201 additions and 28 deletions
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3
fs/xfs/libxfs/xfs_shared.h
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@@ -176,6 +176,9 @@ struct xfs_ino_geometry {
unsigned int ialloc_align;
unsigned int agino_log; /* #bits for agino in inum */
/* precomputed value for di_flags2 */
uint64_t new_diflags2;
};
#endif /* __XFS_SHARED_H__ */