diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/disk-io.c | 1 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 13 | ||||
| -rw-r--r-- | fs/btrfs/ordered-data.c | 36 | ||||
| -rw-r--r-- | fs/btrfs/ordered-data.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/transaction.c | 2 |
6 files changed, 44 insertions, 10 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index a2c2d6d..1e19f2d 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -349,6 +349,7 @@ struct btrfs_fs_info { u64 total_pinned; spinlock_t delalloc_lock; + spinlock_t new_trans_lock; u64 delalloc_bytes; }; /* diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 87daed6..cd29922 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -639,6 +639,7 @@ struct btrfs_root *open_ctree(struct super_block *sb) INIT_LIST_HEAD(&fs_info->hashers); spin_lock_init(&fs_info->hash_lock); spin_lock_init(&fs_info->delalloc_lock); + spin_lock_init(&fs_info->new_trans_lock); memset(&fs_info->super_kobj, 0, sizeof(fs_info->super_kobj)); init_completion(&fs_info->kobj_unregister); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e53d203..008e344 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -993,20 +993,13 @@ fail: void btrfs_drop_inode(struct inode *inode) { - struct btrfs_trans_handle *trans; - struct btrfs_root *root = BTRFS_I(inode)->root; - - if (!BTRFS_I(inode)->ordered_trans) { + if (!BTRFS_I(inode)->ordered_trans || inode->i_nlink) { generic_drop_inode(inode); return; } - /* nasty, but it prevents a deadlock with data=ordered by preventing - * a commit until after this inode is done - */ - trans = btrfs_start_transaction(root, 1); + /* FIXME, make sure this delete actually ends up in the transaction */ + btrfs_del_ordered_inode(inode); generic_drop_inode(inode); - /* note, the inode is now untouchable */ - btrfs_end_transaction(trans, root); } void btrfs_delete_inode(struct inode *inode) diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 411aba8..b56011b 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -219,3 +219,39 @@ int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, kfree(entry); return 1; } + +static int __btrfs_del_ordered_inode(struct btrfs_ordered_inode_tree *tree, + u64 root_objectid, u64 objectid) +{ + struct tree_entry *entry; + struct rb_node *node; + struct rb_node *prev; + + write_lock(&tree->lock); + node = __tree_search(&tree->tree, root_objectid, objectid, &prev); + if (!node) { + write_unlock(&tree->lock); + return 0; + } + rb_erase(node, &tree->tree); + write_unlock(&tree->lock); + entry = rb_entry(node, struct tree_entry, rb_node); + kfree(entry); + return 1; +} + +int btrfs_del_ordered_inode(struct inode *inode) +{ + struct btrfs_root *root = BTRFS_I(inode)->root; + u64 root_objectid = root->root_key.objectid; + + spin_lock(&root->fs_info->new_trans_lock); + if (root->fs_info->running_transaction) { + struct btrfs_ordered_inode_tree *tree; + tree = &root->fs_info->running_transaction->ordered_inode_tree; + __btrfs_del_ordered_inode(tree, root_objectid, inode->i_ino); + } + spin_unlock(&root->fs_info->new_trans_lock); + return 0; +} + diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h index aaf9eb1..26b2621 100644 --- a/fs/btrfs/ordered-data.h +++ b/fs/btrfs/ordered-data.h @@ -36,4 +36,5 @@ int btrfs_find_del_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, u64 *root_objectid, u64 *objectid); int btrfs_find_first_ordered_inode(struct btrfs_ordered_inode_tree *tree, u64 *root_objectid, u64 *objectid); +int btrfs_del_ordered_inode(struct inode *inode); #endif diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 614903f..a320580 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -699,7 +699,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, BUG_ON(ret); cur_trans = root->fs_info->running_transaction; + spin_lock(&root->fs_info->new_trans_lock); root->fs_info->running_transaction = NULL; + spin_unlock(&root->fs_info->new_trans_lock); btrfs_set_super_generation(&root->fs_info->super_copy, cur_trans->transid); btrfs_set_super_root(&root->fs_info->super_copy, |