Just like lowmem mode, reset extent item generation using current
transid.
Signed-off-by: Qu Wenruo <wqu@xxxxxxxx>
---
check/main.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/check/main.c b/check/main.c
index 4115049a1529..74316eab85ec 100644
--- a/check/main.c
+++ b/check/main.c
@@ -7885,6 +7885,65 @@ static int record_unaligned_extent_rec(struct btrfs_fs_info *fs_info,
return ret;
}
+static int reset_extent_item_gen(struct btrfs_fs_info *fs_info,
+ struct extent_record *rec)
+{
+ struct btrfs_root *root = fs_info->extent_root;
+ struct btrfs_trans_handle *trans;
+ struct btrfs_extent_item *ei;
+ struct extent_buffer *leaf;
+ struct btrfs_path path;
+ struct btrfs_key key;
+ u64 transid;
+ int slot;
+ int ret;
+
+ key.objectid = rec->start;
+ if (rec->metadata && btrfs_fs_incompat(fs_info, SKINNY_METADATA)) {
+ key.type = BTRFS_METADATA_ITEM_KEY;
+ key.offset = rec->info_level;
+ } else {
+ key.type = BTRFS_EXTENT_ITEM_KEY;
+ key.offset = rec->max_size;
+ }
+ btrfs_init_path(&path);
+ trans = btrfs_start_transaction(root, 1);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ errno = -ret;
+ error("failed to start transaction: %m");
+ return ret;
+ }
+ transid = trans->transid;
+
+ ret = btrfs_search_slot(trans, root, &key, &path, 0, 1);
+ if (ret < 0) {
+ errno = ret;
+ error("failed to search extent tree: %m");
+ goto abort;
+ }
+ if (ret > 0) {
+ ret = -ENOENT;
+ error("failed to find extent item for bytenr %llu",
+ rec->start);
+ goto abort;
+ }
+ slot = path.slots[0];
+ leaf = path.nodes[0];
+ ei = btrfs_item_ptr(leaf, slot, struct btrfs_extent_item);
+ btrfs_set_extent_generation(leaf, ei, transid);
+ ret = btrfs_commit_transaction(trans, root);
+ if (!ret)
+ printf("reset extent item generation to %llu for extent %llu\n",
+ transid, key.objectid);
+ btrfs_release_path(&path);
+ return ret;
+abort:
+ btrfs_abort_transaction(trans, ret);
+ btrfs_release_path(&path);
+ return ret;
+}
+
static int check_extent_refs(struct btrfs_root *root,
struct cache_tree *extent_cache)
{
@@ -7962,6 +8021,7 @@ static int check_extent_refs(struct btrfs_root *root,
while (1) {
int cur_err = 0;
int fix = 0;
+ bool reset_gen = false;
cache = search_cache_extent(extent_cache, 0);
if (!cache)
@@ -7979,6 +8039,7 @@ static int check_extent_refs(struct btrfs_root *root,
"invalid generation for extent %llu, have %llu expect (0, %llu]",
rec->start, rec->generation,
super_gen + 1);
+ reset_gen = true;
cur_err = 1;
}
if (rec->refs != rec->extent_item_refs) {
@@ -8019,6 +8080,11 @@ static int check_extent_refs(struct btrfs_root *root,
cur_err = 1;
}
+ if (repair && reset_gen) {
+ ret = reset_extent_item_gen(root->fs_info, rec);
+ if (ret)
+ goto repair_abort;
+ }
if (repair && fix) {
ret = fixup_extent_refs(root->fs_info, extent_cache,
rec);
--
2.24.1
