diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2016-08-03 01:33:43 (GMT) |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2016-08-03 01:33:43 (GMT) |
| commit | 673930c34a4500c616cf9b2bbe1ae131ead2e155 (patch) | |
| tree | 954b737dbb42276aeb669f8eabca8bf71a592276 /fs/xfs/libxfs/xfs_rmap.h | |
| parent | 340785cca16246f82ccaf11740d885017a9e9341 (diff) | |
| download | linux-673930c34a4500c616cf9b2bbe1ae131ead2e155.tar.xz | |
xfs: introduce rmap extent operation stubs
Originally-From: Dave Chinner <dchinner@redhat.com>
Add the stubs into the extent allocation and freeing paths that the
rmap btree implementation will hook into. While doing this, add the
trace points that will be used to track rmap btree extent
manipulations.
[darrick.wong@oracle.com: Extend the stubs to take full owner info.]
Signed-off-by: Dave Chinner <dchinner@redhat.com>
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.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h index b30e7ad..dbf0301 100644 --- a/fs/xfs/libxfs/xfs_rmap.h +++ b/fs/xfs/libxfs/xfs_rmap.h @@ -64,4 +64,15 @@ xfs_rmap_skip_owner_update( oi->oi_owner = XFS_RMAP_OWN_UNKNOWN; } +/* Reverse mapping functions. */ + +struct xfs_buf; + +int xfs_rmap_alloc(struct xfs_trans *tp, struct xfs_buf *agbp, + xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len, + struct xfs_owner_info *oinfo); +int xfs_rmap_free(struct xfs_trans *tp, struct xfs_buf *agbp, + xfs_agnumber_t agno, xfs_agblock_t bno, xfs_extlen_t len, + struct xfs_owner_info *oinfo); + #endif /* __XFS_RMAP_H__ */ |