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authorSu Yue <suy.fnst@cn.fujitsu.com>2018-05-08 16:30:10 +0800
committerDavid Sterba <dsterba@suse.com>2018-06-07 16:37:31 +0200
commitea8763bd05c26a14b7236cd5a4e9fef88d8f0ce4 (patch)
tree08f466c5a6cec8ab2d7c494fad8b95b2529208f0 /check/mode-lowmem.c
parentb9fb29a9ba757516821fb7cbebcbf02833b8c829 (diff)
btrfs-progs: check: lowmem: introduce repair_block_accounting
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". Such error will disappear after removing @trans finished. Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'check/mode-lowmem.c')
-rw-r--r--check/mode-lowmem.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/check/mode-lowmem.c b/check/mode-lowmem.c
index e8588c38..ea6163a6 100644
--- a/check/mode-lowmem.c
+++ b/check/mode-lowmem.c
@@ -538,6 +538,30 @@ static int end_avoid_extents_overwrite(struct btrfs_fs_info *fs_info)
}
/*
+ * 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
* item and backref.
@@ -4991,7 +5015,7 @@ 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