Introduce repair_block_accounting() which calls
btrfs_fix_block_accounting() to repair block group accouting.
Replace btrfs_fix_block_accounting() with the new function.
Note: This patch and next patches cause error in lowmem repair like:
"Error: Commit_root already set when starting transaction".
This error will disappear after removing @trans finished.
Signed-off-by: Su Yue <suy.fnst@xxxxxxxxxxxxxx>
---
check/mode-lowmem.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/check/mode-lowmem.c b/check/mode-lowmem.c
index d92278d2993c..40a179f75319 100644
--- a/check/mode-lowmem.c
+++ b/check/mode-lowmem.c
@@ -537,6 +537,30 @@ static int end_avoid_extents_overwrite(struct btrfs_fs_info *fs_info)
return ret;
}
+/*
+ * Wrapper function for btrfs_fix_block_accounting().
+ *
+ * Returns 0 on success.
+ * Returns != 0 on error.
+ */
+static int repair_block_accounting(struct btrfs_fs_info *fs_info)
+{
+ struct btrfs_trans_handle *trans = NULL;
+ struct btrfs_root *root = fs_info->extent_root;
+ int ret;
+
+ trans = btrfs_start_transaction(root, 1);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ error("fail to start transaction %s", strerror(-ret));
+ return ret;
+ }
+
+ ret = btrfs_fix_block_accounting(trans, root);
+ btrfs_commit_transaction(trans, root);
+ return ret;
+}
+
/*
* This function only handles BACKREF_MISSING,
* If corresponding extent item exists, increase the ref, else insert an extent
@@ -4930,7 +4954,7 @@ out:
reset_cached_block_groups(fs_info);
/* update block accounting */
- ret = btrfs_fix_block_accounting(trans, root);
+ ret = repair_block_accounting(fs_info);
if (ret)
err |= ret;
else
--
2.16.1
--
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