[PATCH v2 17/20] xfsprogs/repair: helpers for finding in-core inode records w/ free inodes

Brian Foster
2013-11-13T15:56:26Z

Add the findfirst_free_inode_rec() and next_free_ino_rec() helpers
to assist scanning the in-core inode records for records with at
least one free inode. These will be used to determine what records
are included in the free inode btree.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
repair/incore.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/repair/incore.h b/repair/incore.h
index 38caa6d..5a563db 100644
--- a/repair/incore.h
+++ b/repair/incore.h
@@ -379,6 +379,33 @@ void clear_uncertain_ino_cache(xfs_agnumber_t agno);
((ino_tree_node_t *) ((ino_node_ptr)->avl_node.avl_forw))

/*
+ * finobt helpers
+ */
+static inline ino_tree_node_t *
+findfirst_free_inode_rec(xfs_agnumber_t agno)
+{
+ ino_tree_node_t *ino_rec;
+
+ ino_rec = findfirst_inode_rec(agno);
+
+ while (ino_rec && !ino_rec->ir_free)
+ ino_rec = next_ino_rec(ino_rec);
+
+ return ino_rec;
+}
+
+static inline ino_tree_node_t *
+next_free_ino_rec(ino_tree_node_t *ino_rec)
+{
+ ino_rec = next_ino_rec(ino_rec);
+
+ while (ino_rec && !ino_rec->ir_free)
+ ino_rec = next_ino_rec(ino_rec);
+
+ return ino_rec;
+}
+
+/*
* Has an inode been processed for phase 6 (reference count checking)?
*
* add_inode_refchecked() is set on an inode when it gets traversed