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-rw-r--r--include/linux/rwsem.h12
1 files changed, 1 insertions, 11 deletions
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index a8afe9cd000c..6a6741440cb7 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -15,7 +15,7 @@
15#include <linux/spinlock.h> 15#include <linux/spinlock.h>
16 16
17#include <asm/system.h> 17#include <asm/system.h>
18#include <asm/atomic.h> 18#include <linux/atomic.h>
19 19
20struct rw_semaphore; 20struct rw_semaphore;
21 21
@@ -124,19 +124,9 @@ extern void downgrade_write(struct rw_semaphore *sem);
124 */ 124 */
125extern void down_read_nested(struct rw_semaphore *sem, int subclass); 125extern void down_read_nested(struct rw_semaphore *sem, int subclass);
126extern void down_write_nested(struct rw_semaphore *sem, int subclass); 126extern void down_write_nested(struct rw_semaphore *sem, int subclass);
127/*
128 * Take/release a lock when not the owner will release it.
129 *
130 * [ This API should be avoided as much as possible - the
131 * proper abstraction for this case is completions. ]
132 */
133extern void down_read_non_owner(struct rw_semaphore *sem);
134extern void up_read_non_owner(struct rw_semaphore *sem);
135#else 127#else
136# define down_read_nested(sem, subclass) down_read(sem) 128# define down_read_nested(sem, subclass) down_read(sem)
137# define down_write_nested(sem, subclass) down_write(sem) 129# define down_write_nested(sem, subclass) down_write(sem)
138# define down_read_non_owner(sem) down_read(sem)
139# define up_read_non_owner(sem) up_read(sem)
140#endif 130#endif
141 131
142#endif /* _LINUX_RWSEM_H */ 132#endif /* _LINUX_RWSEM_H */