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| 1 | /* |
1 | /* |
| 2 | * Copyright (c) 2007 Jakub Jermar |
2 | * Copyright (c) 2008 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| Line 134... | Line 134... | ||
| 134 | typedef struct { |
134 | typedef struct { |
| 135 | VFS_TRIPLET; /**< Identity of the node. */ |
135 | VFS_TRIPLET; /**< Identity of the node. */ |
| 136 | unsigned refcnt; /**< Usage counter. */ |
136 | unsigned refcnt; /**< Usage counter. */ |
| 137 | link_t nh_link; /**< Node hash-table link. */ |
137 | link_t nh_link; /**< Node hash-table link. */ |
| 138 | 138 | ||
| - | 139 | /** |
|
| 139 | /** Holding this rwlock prevents modifications of the node's contents. */ |
140 | * Holding this rwlock prevents modifications of the node's contents. |
| - | 141 | */ |
|
| 140 | atomic_t contents_rwlock; |
142 | rwlock_t contents_rwlock; |
| 141 | } vfs_node_t; |
143 | } vfs_node_t; |
| 142 | 144 | ||
| 143 | /** |
145 | /** |
| 144 | * Instances of this type represent an open file. If the file is opened by more |
146 | * Instances of this type represent an open file. If the file is opened by more |
| 145 | * than one task, there will be a separate structure allocated for each task. |
147 | * than one task, there will be a separate structure allocated for each task. |