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authorDarrick J. Wong <darrick.wong@oracle.com>2016-08-03 04:42:39 +0300
committerDave Chinner <david@fromorbit.com>2016-08-03 04:42:39 +0300
commitc543838a1e00a5f8791e59ae570b1030d70906f2 (patch)
treee337821e836ea0378d256dd5e598b75f97df14db /fs/xfs/libxfs/xfs_rmap.h
parentcfed56ae5f410cd6c1601712a9ed4645b71b170c (diff)
downloadlinux-c543838a1e00a5f8791e59ae570b1030d70906f2.tar.xz
xfs: teach rmapbt to support interval queries
Now that the generic btree code supports querying all records within a range of keys, use that functionality to allow us to ask for all the extents mapped to a range of physical blocks. 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.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h
index aa39a2a825e7..34c811a2dacc 100644
--- a/fs/xfs/libxfs/xfs_rmap.h
+++ b/fs/xfs/libxfs/xfs_rmap.h
@@ -151,4 +151,13 @@ int xfs_rmap_lookup_eq(struct xfs_btree_cur *cur, xfs_agblock_t bno,
int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
int *stat);
+typedef int (*xfs_rmap_query_range_fn)(
+ struct xfs_btree_cur *cur,
+ struct xfs_rmap_irec *rec,
+ void *priv);
+
+int xfs_rmap_query_range(struct xfs_btree_cur *cur,
+ struct xfs_rmap_irec *low_rec, struct xfs_rmap_irec *high_rec,
+ xfs_rmap_query_range_fn fn, void *priv);
+
#endif /* __XFS_RMAP_H__ */