[PATCH 20/71] xfs: log bmap intent items

[Darrick J. Wong]

Provide a mechanism for higher levels to create BUI/BUD items, submit
them to the log, and a stub function to deal with recovered BUI items.
These parts will be connected to the rmapbt in a later patch.

Signed-off-by: Darrick J. Wong <darrick.wong at oracle.com>
---
 libxfs/xfs_bmap.h |   12 ++++++++++++
 1 file changed, 12 insertions(+)


diff --git a/libxfs/xfs_bmap.h b/libxfs/xfs_bmap.h
index 9220b1d..c8160fe 100644
--- a/libxfs/xfs_bmap.h
+++ b/libxfs/xfs_bmap.h
@@ -209,5 +209,17 @@ struct xfs_bmbt_rec_host *
 				struct xfs_bmbt_irec *gotp,
 				struct xfs_bmbt_irec *prevp);
 
+enum xfs_bmap_intent_type {
+	XFS_BMAP_MAP,
+	XFS_BMAP_UNMAP,
+};
+
+struct xfs_bmap_intent {
+	struct list_head			bi_list;
+	enum xfs_bmap_intent_type		bi_type;
+	struct xfs_inode			*bi_owner;
+	int					bi_whichfork;
+	struct xfs_bmbt_irec			bi_bmap;
+};
 
 #endif	/* __XFS_BMAP_H__ */