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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:18 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 09:11:18 -0700
commit1946b91cee4fc8ae25450673e4d4f35e9b462e9e (patch)
treee9cc737943e4e7b76c01cab92f88a6c49b49dc43 /fs/xfs/libxfs/xfs_shared.h
parentaf30dfa14411e9df0e69c6e46e8c6c467b88229d (diff)
downloadlinux-1946b91cee4fc8ae25450673e4d4f35e9b462e9e.tar.gz
xfs: define the on-disk refcount btree format
Start constructing the refcount btree implementation by establishing
the on-disk format and everything needed to read, write, and
manipulate the refcount btree blocks.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_shared.h')
-rw-r--r--fs/xfs/libxfs/xfs_shared.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h
index 0c5b30bd884c..c6f4eb46fe26 100644
--- a/fs/xfs/libxfs/xfs_shared.h
+++ b/fs/xfs/libxfs/xfs_shared.h
@@ -39,6 +39,7 @@ extern const struct xfs_buf_ops xfs_agf_buf_ops;
 extern const struct xfs_buf_ops xfs_agfl_buf_ops;
 extern const struct xfs_buf_ops xfs_allocbt_buf_ops;
 extern const struct xfs_buf_ops xfs_rmapbt_buf_ops;
+extern const struct xfs_buf_ops xfs_refcountbt_buf_ops;
 extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
 extern const struct xfs_buf_ops xfs_attr3_rmt_buf_ops;
 extern const struct xfs_buf_ops xfs_bmbt_buf_ops;
@@ -122,6 +123,7 @@ int	xfs_log_calc_minimum_size(struct xfs_mount *);
 #define	XFS_INO_REF		2
 #define	XFS_ATTR_BTREE_REF	1
 #define	XFS_DQUOT_REF		1
+#define	XFS_REFC_BTREE_REF	1
 
 /*
  * Flags for xfs_trans_ichgtime().