diff options
| author | Waiman Long <longman@redhat.com> | 2019-04-04 19:43:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-04-10 10:56:00 +0200 |
| commit | 12a30a7fc142a123c61da9623bd824d95d36c12e (patch) | |
| tree | b759541e8ce6370bc348a0f7156c6ee0ab6c8a71 /kernel | |
| parent | locking/rwsem: Move owner setting code from rwsem.c to rwsem.h (diff) | |
| download | linux-12a30a7fc142a123c61da9623bd824d95d36c12e.tar.xz linux-12a30a7fc142a123c61da9623bd824d95d36c12e.zip | |
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: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Davidlohr 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.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/rwsem.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h index ee24c4f257a5..19997c82270b 100644 --- a/kernel/locking/rwsem.h +++ b/kernel/locking/rwsem.h @@ -153,6 +153,13 @@ static inline void rwsem_clear_reader_owned(struct rw_semaphore *sem) } #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 */ |