diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/transaction.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 07b985f2a814..2fe3ef5e9de3 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1023,7 +1023,6 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, u64 old_root_bytenr; u64 old_root_used; struct btrfs_root *tree_root = root->fs_info->tree_root; - bool extent_root = (root->objectid == BTRFS_EXTENT_TREE_OBJECTID); old_root_used = btrfs_root_used(&root->root_item); btrfs_write_dirty_block_groups(trans, root); @@ -1031,9 +1030,7 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, while (1) { old_root_bytenr = btrfs_root_bytenr(&root->root_item); if (old_root_bytenr == root->node->start && - old_root_used == btrfs_root_used(&root->root_item) && - (!extent_root || - list_empty(&trans->transaction->dirty_bgs))) + old_root_used == btrfs_root_used(&root->root_item)) break; btrfs_set_root_node(&root->root_item, root->node); @@ -1044,14 +1041,6 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, return ret; old_root_used = btrfs_root_used(&root->root_item); - if (extent_root) { - ret = btrfs_write_dirty_block_groups(trans, root); - if (ret) - return ret; - } - ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); - if (ret) - return ret; } return 0; @@ -1068,6 +1057,7 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans, struct btrfs_root *root) { struct btrfs_fs_info *fs_info = root->fs_info; + struct list_head *dirty_bgs = &trans->transaction->dirty_bgs; struct list_head *next; struct extent_buffer *eb; int ret; @@ -1099,7 +1089,7 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans, ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); if (ret) return ret; - +again: while (!list_empty(&fs_info->dirty_cowonly_roots)) { next = fs_info->dirty_cowonly_roots.next; list_del_init(next); @@ -1112,8 +1102,23 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans, ret = update_cowonly_root(trans, root); if (ret) return ret; + ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); + if (ret) + return ret; } + while (!list_empty(dirty_bgs)) { + ret = btrfs_write_dirty_block_groups(trans, root); + if (ret) + return ret; + ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); + if (ret) + return ret; + } + + if (!list_empty(&fs_info->dirty_cowonly_roots)) + goto again; + list_add_tail(&fs_info->extent_root->dirty_list, &trans->transaction->switch_commits); btrfs_after_dev_replace_commit(fs_info); |