| 43,6 → 43,8 |
|---|
| #include <rwlock.h> |
| #include <libadt/hash_table.h> |
| #include <assert.h> |
| #include <async.h> |
| #include <errno.h> |
| |
| /** Futex protecting the VFS node hash table. */ |
| atomic_t nodes_futex = FUTEX_INITIALIZER; |
| 101,8 → 103,15 |
|---|
| */ |
| void vfs_node_delref(vfs_node_t *node) |
| { |
| bool free_vfs_node = false; |
| bool free_fs_node = false; |
| |
| futex_down(&nodes_futex); |
| if (node->refcnt-- == 1) { |
| /* |
| * We are dropping the last reference to this node. |
| * Remove it from the VFS node hash table. |
| */ |
| unsigned long key[] = { |
| [KEY_FS_HANDLE] = node->fs_handle, |
| [KEY_DEV_HANDLE] = node->dev_handle, |
| 109,8 → 118,26 |
|---|
| [KEY_INDEX] = node->index |
| }; |
| hash_table_remove(&nodes, key, 3); |
| free_vfs_node = true; |
| if (!node->lnkcnt) |
| free_fs_node = true; |
| } |
| futex_up(&nodes_futex); |
| |
| if (free_fs_node) { |
| /* |
| * The node is not visible in the file system namespace. |
| * Free up its resources. |
| */ |
| int phone = vfs_grab_phone(node->fs_handle); |
| ipcarg_t rc; |
| rc = async_req_2_0(phone, VFS_FREE, (ipcarg_t)node->dev_handle, |
| (ipcarg_t)node->index); |
| assert(rc == EOK); |
| vfs_release_phone(phone); |
| } |
| if (free_vfs_node) |
| free(node); |
| } |
| |
| /** Find VFS node. |
| 196,8 → 223,6 |
|---|
| |
| void nodes_remove_callback(link_t *item) |
| { |
| vfs_node_t *node = hash_table_get_instance(item, vfs_node_t, nh_link); |
| free(node); |
| } |
| |
| /** |