Add a function named 'repair_inode_orphan_item_lowmem'.
Signed-off-by: Su Yue <suy.f...@cn.fujitsu.com>
---
cmds-check.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 49 insertions(+), 1 deletion(-)
diff --git a/cmds-check.c b/cmds-check.c
index f13ce317..fb239968 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -4936,6 +4936,46 @@ out:
}
/*
+ * repair ORPHAN_ITEM error
+ *
+ * Returns <0 means on error
+ * Returns 0 means successful repair
+ */
+static int repair_inode_orphan_item_lowmem(struct btrfs_root *root,
+ struct btrfs_path *path, u64 ino)
+{
+ struct btrfs_trans_handle *trans;
+ struct btrfs_key research_key;
+ int ret;
+ int ret2;
+
+ btrfs_item_key_to_cpu(path->nodes[0], &research_key, path->slots[0]);
+ btrfs_release_path(path);
+ trans = btrfs_start_transaction(root, 1);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ goto out;
+ }
+
+ ret = btrfs_add_orphan_item(trans, root, path, ino);
+ if (ret)
+ goto out;
+
+ printf("added inode %llu orphan item root %llu", ino,
+ root->root_key.objectid);
+
+ btrfs_commit_transaction(trans, root);
+out:
+ if (ret < 0)
+ error("failed to add inode %llu orphan item root %llu due to
%s",
+ ino, root->root_key.objectid, strerror(-ret));
+ btrfs_release_path(path);
+ ret2 = btrfs_search_slot(NULL, root, &research_key, path, 0, 0);
+
+ return ret2 < 0 ? ret2 : ret;
+}
+
+/*
* Check INODE_ITEM and related ITEMs (the same inode number)
* 1. check link count
* 2. check inode ref/extref
@@ -5088,7 +5128,15 @@ out:
error("root %llu INODE[%llu] nlink(%llu) not equal to
inode_refs(%llu)",
root->objectid, inode_id, nlink, refs);
} else if (!nlink) {
- err |= ORPHAN_ITEM;
+ if (repair)
+ ret = repair_inode_orphan_item_lowmem(root,
+ path,
+ inode_id);
+ if (!repair || ret) {
+ err |= ORPHAN_ITEM;
+ error("root %llu INODE[%llu] is orphan item",
+ root->objectid, inode_id);
+ }
}
if (!nbytes && !no_holes && extent_end < isize) {
--
2.11.1
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