diff options
Diffstat (limited to 'fs/btrfs/delayed-inode.c')
| -rw-r--r-- | fs/btrfs/delayed-inode.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 2399f4086915..07d5eeb1e6f1 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -62,6 +62,7 @@ static inline void btrfs_init_delayed_node( INIT_LIST_HEAD(&delayed_node->n_list); INIT_LIST_HEAD(&delayed_node->p_list); delayed_node->bytes_reserved = 0; + memset(&delayed_node->inode_item, 0, sizeof(delayed_node->inode_item)); } static inline int btrfs_is_continuous_delayed_item( @@ -511,8 +512,8 @@ static void __btrfs_remove_delayed_item(struct btrfs_delayed_item *delayed_item) rb_erase(&delayed_item->rb_node, root); delayed_item->delayed_node->count--; - atomic_dec(&delayed_root->items); - if (atomic_read(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND && + if (atomic_dec_return(&delayed_root->items) < + BTRFS_DELAYED_BACKGROUND && waitqueue_active(&delayed_root->wait)) wake_up(&delayed_root->wait); } @@ -1027,9 +1028,10 @@ do_again: btrfs_release_delayed_item(prev); ret = 0; btrfs_release_path(path); - if (curr) + if (curr) { + mutex_unlock(&node->mutex); goto do_again; - else + } else goto delete_fail; } @@ -1054,8 +1056,7 @@ static void btrfs_release_delayed_inode(struct btrfs_delayed_node *delayed_node) delayed_node->count--; delayed_root = delayed_node->root->fs_info->delayed_root; - atomic_dec(&delayed_root->items); - if (atomic_read(&delayed_root->items) < + if (atomic_dec_return(&delayed_root->items) < BTRFS_DELAYED_BACKGROUND && waitqueue_active(&delayed_root->wait)) wake_up(&delayed_root->wait); @@ -1113,8 +1114,8 @@ static int btrfs_update_delayed_inode(struct btrfs_trans_handle *trans, * Returns < 0 on error and returns with an aborted transaction with any * outstanding delayed items cleaned up. */ -int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, - struct btrfs_root *root) +static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans, + struct btrfs_root *root, int nr) { struct btrfs_root *curr_root = root; struct btrfs_delayed_root *delayed_root; @@ -1122,6 +1123,7 @@ int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, struct btrfs_path *path; struct btrfs_block_rsv *block_rsv; int ret = 0; + bool count = (nr > 0); if (trans->aborted) return -EIO; @@ -1137,7 +1139,7 @@ int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, delayed_root = btrfs_get_delayed_root(root); curr_node = btrfs_first_delayed_node(delayed_root); - while (curr_node) { + while (curr_node && (!count || (count && nr--))) { curr_root = curr_node->root; ret = btrfs_insert_delayed_items(trans, path, curr_root, curr_node); @@ -1149,6 +1151,7 @@ int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, path, curr_node); if (ret) { btrfs_release_delayed_node(curr_node); + curr_node = NULL; btrfs_abort_transaction(trans, root, ret); break; } @@ -1158,12 +1161,26 @@ int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, btrfs_release_delayed_node(prev_node); } + if (curr_node) + btrfs_release_delayed_node(curr_node); btrfs_free_path(path); trans->block_rsv = block_rsv; return ret; } +int btrfs_run_delayed_items(struct btrfs_trans_handle *trans, + struct btrfs_root *root) +{ + return __btrfs_run_delayed_items(trans, root, -1); +} + +int btrfs_run_delayed_items_nr(struct btrfs_trans_handle *trans, + struct btrfs_root *root, int nr) +{ + return __btrfs_run_delayed_items(trans, root, nr); +} + static int __btrfs_commit_inode_delayed_items(struct btrfs_trans_handle *trans, struct btrfs_delayed_node *node) { |