diff options
| author | Michal Hocko <mhocko@suse.com> | 2016-04-07 18:12:21 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-04-13 11:42:16 +0300 |
| commit | f8e04d854506ddfeba9cb41b601972b28521f104 (patch) | |
| tree | 14d83d091a379043926d439760ff0e6ed64c0b29 /kernel/locking | |
| parent | 1c74a7f812b135d3df41d7c3671b647aed6467bf (diff) | |
| download | linux-f8e04d854506ddfeba9cb41b601972b28521f104.tar.xz | |
locking/rwsem: Get rid of __down_write_nested()
This is no longer used anywhere and all callers (__down_write()) use
0 as a subclass. Ditch __down_write_nested() to make the code easier
to follow.
This shouldn't introduce any functional change.
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Signed-off-by: Jason Low <jason.low2@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-xtensa@linux-xtensa.org
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/1460041951-22347-2-git-send-email-mhocko@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/rwsem-spinlock.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c index 3a5048572065..bab26104a5d0 100644 --- a/kernel/locking/rwsem-spinlock.c +++ b/kernel/locking/rwsem-spinlock.c @@ -191,7 +191,7 @@ int __down_read_trylock(struct rw_semaphore *sem) /* * get a write lock on the semaphore */ -void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) +void __sched __down_write(struct rw_semaphore *sem) { struct rwsem_waiter waiter; struct task_struct *tsk; @@ -227,11 +227,6 @@ void __sched __down_write_nested(struct rw_semaphore *sem, int subclass) raw_spin_unlock_irqrestore(&sem->wait_lock, flags); } -void __sched __down_write(struct rw_semaphore *sem) -{ - __down_write_nested(sem, 0); -} - /* * trylock for writing -- returns 1 if successful, 0 if contention */ |