commit 02529d7a1077c5d00d990143cbd78aa56bb7c7cb
author Qu Wenruo <wqu@suse.com> Wed Apr 24 15:22:53 2019 +0800
committer David Sterba <dsterba@suse.com> Mon Apr 29 19:02:52 2019 +0200
tree 3a23bfae92cd76e006859430c54050f8552f689a
parent 51d470aeaa3a4ac5bdf98743ac1d32008e8dafa4

btrfs: tree-checker: Allow error injection for tree-checker

Allowing error injection for btrfs_check_leaf_full() and
btrfs_check_node() is useful to test the failure path of btrfs write
time tree check.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/tree-checker.c

diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 32eeee5..748cd15 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -15,6 +15,9 @@
  * carefully reviewed otherwise so it does not prevent mount of valid images.
  */
 
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/error-injection.h>
 #include "ctree.h"
 #include "tree-checker.h"
 #include "disk-io.h"
@@ -942,6 +945,7 @@ int btrfs_check_leaf_full(struct extent_buffer *leaf)
 {
 	return check_leaf(leaf, true);
 }
+ALLOW_ERROR_INJECTION(btrfs_check_leaf_full, ERRNO);
 
 int btrfs_check_leaf_relaxed(struct extent_buffer *leaf)
 {
@@ -1005,3 +1009,4 @@ int btrfs_check_node(struct extent_buffer *node)
 out:
 	return ret;
 }
+ALLOW_ERROR_INJECTION(btrfs_check_node, ERRNO);