xfs: create a function to query all records in a btree
Create a helper function that will query all records in a btree.
This will be used by the online repair functions to examine every
record in a btree to rebuild a second btree.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index c3deced..92aa20d 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -4842,6 +4842,21 @@ xfs_btree_query_range(
fn, priv);
}
+/* Query a btree for all records. */
+int
+xfs_btree_query_all(
+ struct xfs_btree_cur *cur,
+ xfs_btree_query_range_fn fn,
+ void *priv)
+{
+ union xfs_btree_irec low_rec;
+ union xfs_btree_irec high_rec;
+
+ memset(&low_rec, 0, sizeof(low_rec));
+ memset(&high_rec, 0xFF, sizeof(high_rec));
+ return xfs_btree_query_range(cur, &low_rec, &high_rec, fn, priv);
+}
+
/*
* Calculate the number of blocks needed to store a given number of records
* in a short-format (per-AG metadata) btree.