New function repair_inode_item_mismatch() only changes inode item'
filetype.

Signed-off-by: Su Yue <suy.f...@cn.fujitsu.com>
---
 cmds-check.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/cmds-check.c b/cmds-check.c
index f302724dd840..e3505a7f9d6b 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -4913,6 +4913,58 @@ static void print_inode_ref_err(struct btrfs_root *root, 
struct btrfs_key *key,
                      namebuf, filetype);
 }
 
+/*
+ * Change inode mode.
+ *
+ * Returns 0 means success.
+ * Returns <0 means error.
+ */
+static int repair_inode_item_mismatch(struct btrfs_root *root, u64 ino,
+                                     u8 filetype)
+{
+       struct btrfs_key key;
+       struct btrfs_trans_handle *trans;
+       struct btrfs_path path;
+       struct btrfs_inode_item *ii;
+       u32 mode;
+       int ret;
+
+       key.objectid = ino;
+       key.type = BTRFS_INODE_ITEM_KEY;
+       key.offset = 0;
+
+       btrfs_init_path(&path);
+       trans = btrfs_start_transaction(root, 1);
+       if (IS_ERR(trans)) {
+               ret = -EIO;
+               goto out;
+       }
+
+       ret = btrfs_search_slot(trans, root, &key, &path, 0, 1);
+       if (ret > 0)
+               ret = -ENOENT;
+       if (ret)
+               goto fail;
+
+       ii = btrfs_item_ptr(path.nodes[0], path.slots[0],
+                           struct btrfs_inode_item);
+       mode = btrfs_inode_mode(path.nodes[0], ii);
+       mode &= ~S_IFMT;
+       mode |= btrfs_type_to_imode(filetype);
+
+       btrfs_set_inode_mode(path.nodes[0], ii, mode);
+       btrfs_mark_buffer_dirty(path.nodes[0]);
+       ret = 0;
+fail:
+       btrfs_commit_transaction(trans, root);
+out:
+       btrfs_release_path(&path);
+       if (ret)
+               error("failed to repair root %llu INODE ITEM[%llu] MISMATCH",
+                     root->objectid, ino);
+       return ret;
+}
+
 /*
  * Insert the missing inode item.
  *
-- 
2.16.1



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