Commit 12a30a7f authored by Waiman Long's avatar Waiman Long Committed by Ingo Molnar

locking/rwsem: Move rwsem internal function declarations to rwsem-xadd.h

We don't need to expose rwsem internal functions which are not supposed
to be called directly from other kernel code.
Signed-off-by: default avatarWaiman Long <longman@redhat.com>
Acked-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Acked-by: default avatarDavidlohr Bueso <dbueso@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Link: http://lkml.kernel.org/r/20190404174320.22416-4-longman@redhat.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent c7580c1e
...@@ -46,13 +46,6 @@ struct rw_semaphore { ...@@ -46,13 +46,6 @@ struct rw_semaphore {
*/ */
#define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-2L) #define RWSEM_OWNER_UNKNOWN ((struct task_struct *)-2L)
extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_write_failed_killable(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *);
extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
/* In all implementations count != 0 means locked */ /* In all implementations count != 0 means locked */
static inline int rwsem_is_locked(struct rw_semaphore *sem) static inline int rwsem_is_locked(struct rw_semaphore *sem)
{ {
......
...@@ -153,6 +153,13 @@ static inline void rwsem_clear_reader_owned(struct rw_semaphore *sem) ...@@ -153,6 +153,13 @@ static inline void rwsem_clear_reader_owned(struct rw_semaphore *sem)
} }
#endif #endif
extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_read_failed_killable(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_down_write_failed_killable(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem);
extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem);
/* /*
* lock for reading * lock for reading
*/ */
......
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