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| author | Darrick J. Wong <djwong@kernel.org> | 2023-10-16 09:49:01 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-10-18 11:46:19 -0700 |
| commit | 97e993830a1cdd86ad7d207308b9f55a00660edd (patch) | |
| tree | 36f4292ce96f5a738de9cb50bad045c6e42bb004 /fs/xfs/xfs_ondisk.h | |
| parent | 312d61021b8947446aa9ec80b78b9230e8cb3691 (diff) | |
| download | lwn-97e993830a1cdd86ad7d207308b9f55a00660edd.tar.gz lwn-97e993830a1cdd86ad7d207308b9f55a00660edd.zip | |
xfs: use accessor functions for bitmap words
Create get and set functions for rtbitmap words so that we can redefine
the ondisk format with a specific endianness. Note that this requires
the definition of a distinct type for ondisk rtbitmap words so that the
compiler can perform proper typechecking as we go back and forth.
In the upcoming rtgroups feature, we're going to fix the problem that
rtwords are written in host endian order, which means we'll need the
distinct rtword/rtword_raw types.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_ondisk.h')
| -rw-r--r-- | fs/xfs/xfs_ondisk.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h index c4cc99b70dd3..14d455f768d3 100644 --- a/fs/xfs/xfs_ondisk.h +++ b/fs/xfs/xfs_ondisk.h @@ -72,6 +72,9 @@ xfs_check_ondisk_structs(void) XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_map_t, 4); XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_local_t, 4); + /* realtime structures */ + XFS_CHECK_STRUCT_SIZE(union xfs_rtword_raw, 4); + /* * m68k has problems with xfs_attr_leaf_name_remote_t, but we pad it to * 4 bytes anyway so it's not obviously a problem. Hence for the moment |