diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 11:40:56 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 11:40:56 +1000 |
| commit | cfed56ae5f410cd6c1601712a9ed4645b71b170c (patch) | |
| tree | 8a55b97d8965e80db51ba4c5319150adbb83f491 /fs/xfs/libxfs/xfs_rmap_btree.h | |
| parent | 4b8ed67794fe57b23801c65f4ea5b0f0b1f0dbab (diff) | |
| download | linux-cfed56ae5f410cd6c1601712a9ed4645b71b170c.tar.bz2 | |
xfs: support overlapping intervals in the rmap btree
Now that the generic btree code supports overlapping intervals, plug
in the rmap btree to this functionality. We will need it to find
potential left neighbors in xfs_rmap_{alloc,free} later in the patch
set.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_rmap_btree.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap_btree.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.h b/fs/xfs/libxfs/xfs_rmap_btree.h index a3a6b7d476c7..e73a55357dab 100644 --- a/fs/xfs/libxfs/xfs_rmap_btree.h +++ b/fs/xfs/libxfs/xfs_rmap_btree.h @@ -38,12 +38,18 @@ struct xfs_mount; #define XFS_RMAP_KEY_ADDR(block, index) \ ((struct xfs_rmap_key *) \ ((char *)(block) + XFS_RMAP_BLOCK_LEN + \ - ((index) - 1) * sizeof(struct xfs_rmap_key))) + ((index) - 1) * 2 * sizeof(struct xfs_rmap_key))) + +#define XFS_RMAP_HIGH_KEY_ADDR(block, index) \ + ((struct xfs_rmap_key *) \ + ((char *)(block) + XFS_RMAP_BLOCK_LEN + \ + sizeof(struct xfs_rmap_key) + \ + ((index) - 1) * 2 * sizeof(struct xfs_rmap_key))) #define XFS_RMAP_PTR_ADDR(block, index, maxrecs) \ ((xfs_rmap_ptr_t *) \ ((char *)(block) + XFS_RMAP_BLOCK_LEN + \ - (maxrecs) * sizeof(struct xfs_rmap_key) + \ + (maxrecs) * 2 * sizeof(struct xfs_rmap_key) + \ ((index) - 1) * sizeof(xfs_rmap_ptr_t))) struct xfs_btree_cur *xfs_rmapbt_init_cursor(struct xfs_mount *mp, |