diff options
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r-- | fs/btrfs/ioctl.c | 57 |
1 files changed, 32 insertions, 25 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f84b5f6991cc..4c6e0c15754d 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -76,9 +76,8 @@ static noinline int create_subvol(struct btrfs_root *root, char *name, if (ret) goto fail; - leaf = btrfs_alloc_free_block(trans, root, root->leafsize, - objectid, trans->transid, 0, 0, - 0, 0); + leaf = btrfs_alloc_free_block(trans, root, root->leafsize, 0, + objectid, trans->transid, 0, 0, 0); if (IS_ERR(leaf)) { ret = PTR_ERR(leaf); goto fail; @@ -525,13 +524,10 @@ long btrfs_ioctl_clone(struct file *file, unsigned long src_fd) struct file *src_file; struct inode *src; struct btrfs_trans_handle *trans; - struct btrfs_ordered_extent *ordered; struct btrfs_path *path; struct extent_buffer *leaf; char *buf; struct btrfs_key key; - struct btrfs_key new_key; - u32 size; u32 nritems; int slot; int ret; @@ -576,6 +572,7 @@ long btrfs_ioctl_clone(struct file *file, unsigned long src_fd) /* do any pending delalloc/csum calc on src, one way or another, and lock file content */ while (1) { + struct btrfs_ordered_extent *ordered; lock_extent(&BTRFS_I(src)->io_tree, 0, (u64)-1, GFP_NOFS); ordered = btrfs_lookup_first_ordered_extent(inode, (u64)-1); if (BTRFS_I(src)->delalloc_bytes == 0 && !ordered) @@ -619,6 +616,32 @@ long btrfs_ioctl_clone(struct file *file, unsigned long src_fd) key.objectid != src->i_ino) break; + if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY || + btrfs_key_type(&key) == BTRFS_CSUM_ITEM_KEY) { + u32 size; + struct btrfs_key new_key; + + size = btrfs_item_size_nr(leaf, slot); + read_extent_buffer(leaf, buf, + btrfs_item_ptr_offset(leaf, slot), + size); + btrfs_release_path(root, path); + + memcpy(&new_key, &key, sizeof(new_key)); + new_key.objectid = inode->i_ino; + ret = btrfs_insert_empty_item(trans, root, path, + &new_key, size); + if (ret) + goto out; + + leaf = path->nodes[0]; + slot = path->slots[0]; + write_extent_buffer(leaf, buf, + btrfs_item_ptr_offset(leaf, slot), + size); + btrfs_mark_buffer_dirty(leaf); + } + if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY) { struct btrfs_file_extent_item *extent; int found_type; @@ -634,31 +657,15 @@ long btrfs_ioctl_clone(struct file *file, unsigned long src_fd) /* ds == 0 means there's a hole */ if (ds != 0) { ret = btrfs_inc_extent_ref(trans, root, - ds, dl, + ds, dl, leaf->start, root->root_key.objectid, trans->transid, inode->i_ino, key.offset); - if (ret) - goto out; + BUG_ON(ret); } } } - - if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY || - btrfs_key_type(&key) == BTRFS_CSUM_ITEM_KEY) { - size = btrfs_item_size_nr(leaf, slot); - read_extent_buffer(leaf, buf, - btrfs_item_ptr_offset(leaf, slot), - size); - btrfs_release_path(root, path); - memcpy(&new_key, &key, sizeof(new_key)); - new_key.objectid = inode->i_ino; - ret = btrfs_insert_item(trans, root, &new_key, - buf, size); - BUG_ON(ret); - } else { - btrfs_release_path(root, path); - } + btrfs_release_path(root, path); key.offset++; } ret = 0; |