diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/cred.h | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/include/linux/cred.h b/include/linux/cred.h index 75c0fa881308..ce40cbc791e2 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h | |||
@@ -153,6 +153,7 @@ struct cred { | |||
153 | extern void __put_cred(struct cred *); | 153 | extern void __put_cred(struct cred *); |
154 | extern void exit_creds(struct task_struct *); | 154 | extern void exit_creds(struct task_struct *); |
155 | extern int copy_creds(struct task_struct *, unsigned long); | 155 | extern int copy_creds(struct task_struct *, unsigned long); |
156 | extern const struct cred *get_task_cred(struct task_struct *); | ||
156 | extern struct cred *cred_alloc_blank(void); | 157 | extern struct cred *cred_alloc_blank(void); |
157 | extern struct cred *prepare_creds(void); | 158 | extern struct cred *prepare_creds(void); |
158 | extern struct cred *prepare_exec_creds(void); | 159 | extern struct cred *prepare_exec_creds(void); |
@@ -282,26 +283,6 @@ static inline void put_cred(const struct cred *_cred) | |||
282 | ((const struct cred *)(rcu_dereference_check((task)->real_cred, rcu_read_lock_held() || lockdep_tasklist_lock_is_held()))) | 283 | ((const struct cred *)(rcu_dereference_check((task)->real_cred, rcu_read_lock_held() || lockdep_tasklist_lock_is_held()))) |
283 | 284 | ||
284 | /** | 285 | /** |
285 | * get_task_cred - Get another task's objective credentials | ||
286 | * @task: The task to query | ||
287 | * | ||
288 | * Get the objective credentials of a task, pinning them so that they can't go | ||
289 | * away. Accessing a task's credentials directly is not permitted. | ||
290 | * | ||
291 | * The caller must make sure task doesn't go away, either by holding a ref on | ||
292 | * task or by holding tasklist_lock to prevent it from being unlinked. | ||
293 | */ | ||
294 | #define get_task_cred(task) \ | ||
295 | ({ \ | ||
296 | struct cred *__cred; \ | ||
297 | rcu_read_lock(); \ | ||
298 | __cred = (struct cred *) __task_cred((task)); \ | ||
299 | get_cred(__cred); \ | ||
300 | rcu_read_unlock(); \ | ||
301 | __cred; \ | ||
302 | }) | ||
303 | |||
304 | /** | ||
305 | * get_current_cred - Get the current task's subjective credentials | 286 | * get_current_cred - Get the current task's subjective credentials |
306 | * | 287 | * |
307 | * Get the subjective credentials of the current task, pinning them so that | 288 | * Get the subjective credentials of the current task, pinning them so that |