diff options
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1c340d6c8568..7e288510fd2c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3170,9 +3170,6 @@ out: /* once for the tree */ btrfs_put_ordered_extent(ordered_extent); - /* Try to release some metadata so we don't get an OOM but don't wait */ - btrfs_btree_balance_dirty_nodelay(fs_info); - return ret; } @@ -3897,6 +3894,21 @@ cache_index: * inode is not a directory, logging its parent unnecessarily. */ BTRFS_I(inode)->last_unlink_trans = BTRFS_I(inode)->last_trans; + /* + * Similar reasoning for last_link_trans, needs to be set otherwise + * for a case like the following: + * + * mkdir A + * touch foo + * ln foo A/bar + * echo 2 > /proc/sys/vm/drop_caches + * fsync foo + * <power failure> + * + * Would result in link bar and directory A not existing after the power + * failure. + */ + BTRFS_I(inode)->last_link_trans = BTRFS_I(inode)->last_trans; path->slots[0]++; if (inode->i_nlink != 1 || @@ -6582,14 +6594,19 @@ fail_dir_item: err = btrfs_del_root_ref(trans, fs_info, key.objectid, root->root_key.objectid, parent_ino, &local_index, name, name_len); - + if (err) + btrfs_abort_transaction(trans, err); } else if (add_backref) { u64 local_index; int err; err = btrfs_del_inode_ref(trans, root, name, name_len, ino, parent_ino, &local_index); + if (err) + btrfs_abort_transaction(trans, err); } + + /* Return the original error code */ return ret; } @@ -6813,6 +6830,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir, if (err) goto fail; } + BTRFS_I(inode)->last_link_trans = trans->transid; d_instantiate(dentry, inode); btrfs_log_new_name(trans, BTRFS_I(inode), NULL, parent); } @@ -9540,6 +9558,7 @@ struct inode *btrfs_alloc_inode(struct super_block *sb) ei->index_cnt = (u64)-1; ei->dir_index = 0; ei->last_unlink_trans = 0; + ei->last_link_trans = 0; ei->last_log_commit = 0; ei->delayed_iput_count = 0; |