916  * FOLL_NOWAIT, the mmap_lock may be released.  If it is, *@locked will be set
921 		int *locked)  in faultin_page()  argument
966 		*locked = 0;  in faultin_page()
988 			*locked = 0;  in faultin_page()
1141  * @locked:     whether we're still with the mmap_lock held
1176  * be released. If this happens *@locked will be set to 0 on return.
1189 		int *locked)  in __get_user_pages()  argument
1242 					   PTR_ERR(page) == -EMLINK, locked);  in __get_user_pages()
1454  * Locking: (*locked == 1) means that the mmap_lock has already been acquired by
1456  * set (*locked = 0).
1458  * (*locked == 0) means that the caller expects this function to acquire and
1459  * drop the mmap_lock. Therefore, the value of *locked will still be zero when
1470 						int *locked,  in __get_user_pages_locked()  argument
1483 	if (!*locked) {  in __get_user_pages_locked()
1487 		*locked = 1;  in __get_user_pages_locked()
1510 				       locked);  in __get_user_pages_locked()
1518 		if (!*locked) {  in __get_user_pages_locked()
1529 		if (*locked) {  in __get_user_pages_locked()
1572 		*locked = 1;  in __get_user_pages_locked()
1574 				       pages, locked);  in __get_user_pages_locked()
1575 		if (!*locked) {  in __get_user_pages_locked()
1594 	if (must_unlock && *locked) {  in __get_user_pages_locked()
1601 		*locked = 0;  in __get_user_pages_locked()
1619  * @locked: whether the mmap_lock is still held
1628  * If @locked is NULL, it may be held for read or write and will
1631  * If @locked is non-NULL, it must held for read only and may be
1632  * released.  If it's released, *@locked will be set to 0.
1635 		unsigned long start, unsigned long end, int *locked)  in populate_vma_page_range()  argument
1672 	if (locked)  in populate_vma_page_range()
1680 			       NULL, locked ? locked : &local_locked);  in populate_vma_page_range()
1695  * @locked: whether the mmap_lock is still held
1701  * covered by the VMA. If it's released, *@locked will be set to 0.
1704 			    unsigned long end, bool write, int *locked)  in faultin_vma_page_range()  argument
1738 			       NULL, locked);  in faultin_vma_page_range()
1755 	int locked = 0;  in __mm_populate()  local
1765 		if (!locked) {  in __mm_populate()
1766 			locked = 1;  in __mm_populate()
1788 		ret = populate_vma_page_range(vma, nstart, nend, &locked);  in __mm_populate()
1799 	if (locked)  in __mm_populate()
1806 		int *locked, unsigned int foll_flags)  in __get_user_pages_locked()  argument
1820 	if (!*locked) {  in __get_user_pages_locked()
1824 		*locked = 1;  in __get_user_pages_locked()
1854 	if (must_unlock && *locked) {  in __get_user_pages_locked()
1856 		*locked = 0;  in __get_user_pages_locked()
2028 	int locked = 0;  in get_dump_page()  local
2031 	ret = __get_user_pages_locked(current->mm, addr, 1, &page, &locked,  in get_dump_page()
2204 				  int *locked,  in __gup_longterm_locked()  argument
2212 					       locked, gup_flags);  in __gup_longterm_locked()
2217 							  pages, locked,  in __gup_longterm_locked()
2235 static bool is_valid_gup_args(struct page **pages, int *locked,  in is_valid_gup_args()  argument
2245 	 * - FOLL_UNLOCKABLE is internal only and used if locked is !NULL  in is_valid_gup_args()
2251 	if (locked) {  in is_valid_gup_args()
2252 		/* At the external interface locked must be set */  in is_valid_gup_args()
2253 		if (WARN_ON_ONCE(*locked != 1))  in is_valid_gup_args()
2291  * @locked:	pointer to lock flag indicating whether lock is held and
2341 		int *locked)  in get_user_pages_remote()  argument
2345 	if (!is_valid_gup_args(pages, locked, &gup_flags,  in get_user_pages_remote()
2350 				       locked ? locked : &local_locked,  in get_user_pages_remote()
2359 			   int *locked)  in get_user_pages_remote()  argument
2376  * the current task, and doesn't allow passing of a locked parameter.  We also
2382 	int locked = 1;  in get_user_pages()  local
2388 				       &locked, gup_flags);  in get_user_pages()
2410 	int locked = 0;  in get_user_pages_unlocked()  local
2417 				       &locked, gup_flags);  in get_user_pages_unlocked()
3184 	int locked = 0;  in internal_get_user_pages_fast()  local
3216 				    pages, &locked,  in internal_get_user_pages_fast()
3334  * @locked:	pointer to lock flag indicating whether lock is held and
3351 			   int *locked)  in pin_user_pages_remote()  argument
3355 	if (!is_valid_gup_args(pages, locked, &gup_flags,  in pin_user_pages_remote()
3359 				     locked ? locked : &local_locked,  in pin_user_pages_remote()
3385 	int locked = 1;  in pin_user_pages()  local
3390 				     pages, &locked, gup_flags);  in pin_user_pages()
3405 	int locked = 0;  in pin_user_pages_unlocked()  local
3412 				     &locked, gup_flags);  in pin_user_pages_unlocked()