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xfs: add shared rmap map/unmap/convert log item types

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Wire up some rmap log redo item type codes to map, unmap, or convert
shared data block extents.  The actual log item recovery comes in a
later patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong
2016-10-03 09:11:47 -07:00
parent 80de462e09
commit 0e07c039ba
3 changed files with 15 additions and 0 deletions
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3
fs/xfs/libxfs/xfs_log_format.h
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@@ -635,8 +635,11 @@ struct xfs_map_extent {
/* rmap me_flags: upper bits are flags, lower byte is type code */
#define XFS_RMAP_EXTENT_MAP 1
#define XFS_RMAP_EXTENT_MAP_SHARED 2
#define XFS_RMAP_EXTENT_UNMAP 3
#define XFS_RMAP_EXTENT_UNMAP_SHARED 4
#define XFS_RMAP_EXTENT_CONVERT 5
#define XFS_RMAP_EXTENT_CONVERT_SHARED 6
#define XFS_RMAP_EXTENT_ALLOC 7
#define XFS_RMAP_EXTENT_FREE 8
#define XFS_RMAP_EXTENT_TYPE_MASK 0xFF