diff options
| author |   Davidlohr Bueso <dave@stgolabs.net> | 2015-01-25 23:36:04 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2015-02-04 07:57:39 +0100 |
| commit | 73105994c57d06e40a33ab5a716db04e898b4c05 (patch) | |
| tree | 70eb647de1b7435ed58ee54c8ee79c7a8ccfb010 /kernel | |
| parent | sched/completion: Add lock-free checking of the blocking case (diff) | |
| download | linux-dev-73105994c57d06e40a33ab5a716db04e898b4c05.tar.xz linux-dev-73105994c57d06e40a33ab5a716db04e898b4c05.zip | |
locking/rwsem: Use task->state helpers
Call __set_task_state() instead of assigning the new state
directly. These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP
environments, keeping track of who last changed the state.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1422257769-14083-2-git-send-email-dave@stgolabs.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/locking/rwsem-spinlock.c | 2 | ||||
| -rw-r--r-- | kernel/locking/rwsem-xadd.c | 3 |
2 files changed, 2 insertions, 3 deletions
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c index 2c93571162cb..2555ae15ec14 100644 --- a/kernel/locking/rwsem-spinlock.c +++ b/kernel/locking/rwsem-spinlock.c @@ -154,7 +154,7 @@ void __sched __down_read(struct rw_semaphore *sem) set_task_state(tsk, TASK_UNINTERRUPTIBLE); } - tsk->state = TASK_RUNNING; + __set_task_state(tsk, TASK_RUNNING); out: ; } diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c index 7628c3fc37ca..2f7cc4076f50 100644 --- a/kernel/locking/rwsem-xadd.c +++ b/kernel/locking/rwsem-xadd.c @@ -242,8 +242,7 @@ struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem) schedule(); } - tsk->state = TASK_RUNNING; - + __set_task_state(tsk, TASK_RUNNING); return sem; } EXPORT_SYMBOL(rwsem_down_read_failed); |