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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-08-25 01:15:46 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-09-16 06:52:41 +0300 |
| commit | 5a0bb066f60fa02f453d7721844eae59f505c06e (patch) | |
| tree | 9060a5a8f29f1de384a90ac6f9b14a90ae4a9ef9 /fs/xfs/libxfs/xfs_format.h | |
| parent | 88947ea0ba713c9b74b212755b3b58242f0e7a56 (diff) | |
| download | linux-5a0bb066f60fa02f453d7721844eae59f505c06e.tar.xz | |
xfs: redefine xfs_timestamp_t
Redefine xfs_timestamp_t as a __be64 typedef in preparation for the
bigtime functionality. Preserve the legacy structure format so that we
can let the compiler take care of 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>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_format.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_format.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 4b68a473b090..d9b629f12c00 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -856,12 +856,16 @@ 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 { +typedef __be64 xfs_timestamp_t; + +/* Legacy timestamp encoding format. */ +struct xfs_legacy_timestamp { __be32 t_sec; /* timestamp seconds */ __be32 t_nsec; /* timestamp nanoseconds */ -} xfs_timestamp_t; +}; /* * Smallest possible ondisk seconds value with traditional timestamps. This |