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Btrfs: working file_write, reorganized key flags

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-04-18 16:15:28 -04:00
committed by David Woodhouse
父節點 70b2befd0c
當前提交 a429e51371
共有 7 個文件被更改，包括 178 次插入 和 186 次删除
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70
fs/btrfs/dir-item.c
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@@ -58,30 +58,6 @@ int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_memcpy(root, path->nodes[0]->b_data, name_ptr, name, name_len);
btrfs_mark_buffer_dirty(path->nodes[0]);
/* FIXME, use some real flag for selecting the extra index */
if (root == root->fs_info->tree_root)
goto out;
btrfs_release_path(root, path);
btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
key.offset = location->objectid;
ret = insert_with_overflow(trans, root, path, &key, data_size);
// FIXME clear the dirindex bit
if (ret)
goto out;
dir_item = btrfs_item_ptr(btrfs_buffer_leaf(path->nodes[0]),
path->slots[0],
struct btrfs_dir_item);
btrfs_cpu_key_to_disk(&dir_item->location, location);
btrfs_set_dir_type(dir_item, type);
btrfs_set_dir_flags(dir_item, 0);
btrfs_set_dir_name_len(dir_item, name_len);
name_ptr = (char *)(dir_item + 1);
btrfs_memcpy(root, path->nodes[0]->b_data, name_ptr, name, name_len);
btrfs_mark_buffer_dirty(path->nodes[0]);
out:
btrfs_release_path(root, path);
btrfs_free_path(path);
@@ -135,52 +111,6 @@ int btrfs_lookup_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
return 1;
}
int btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 dir,
u64 objectid, int mod)
{
int ret;
struct btrfs_key key;
int ins_len = mod < 0 ? -1 : 0;
int cow = mod != 0;
struct btrfs_disk_key *found_key;
struct btrfs_leaf *leaf;
int overflow = 0;
key.objectid = dir;
key.flags = 0;
btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
key.offset = objectid;
while(1) {
btrfs_set_key_overflow(&key, overflow);
ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);
if (ret < 0)
return ret;
if (ret > 0) {
if (overflow >= BTRFS_KEY_OVERFLOW_MAX)
return 1;
overflow++;
btrfs_set_key_overflow(&key, overflow);
btrfs_release_path(root, path);
continue;
} else {
/* found */
break;
}
}
leaf = btrfs_buffer_leaf(path->nodes[0]);
found_key = &leaf->items[path->slots[0]].key;
if (btrfs_disk_key_objectid(found_key) != dir ||
btrfs_disk_key_type(found_key) != BTRFS_DIR_INDEX_KEY)
return 1;
if (btrfs_disk_key_offset(found_key) == objectid)
return 0;
return 1;
}
int btrfs_match_dir_item_name(struct btrfs_root *root,
struct btrfs_path *path,
const char *name, int name_len)