diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-04-23 15:42:58 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-20 09:58:22 +0200 |
| commit | c2f23920283dd57acf375d5b5ff2fd5bbf9f5e2d (patch) | |
| tree | cc4a64547fffd2486a25f43cf81ff8b38859f4cb | |
| parent | rtems-bsd-mutex: Use standard thread queues (diff) | |
| download | rtems-libbsd-c2f23920283dd57acf375d5b5ff2fd5bbf9f5e2d.tar.bz2 | |
SLEEPQUEUE(9): Avoid Giant lock
| -rw-r--r-- | freebsd/sys/kern/subr_sleepqueue.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/freebsd/sys/kern/subr_sleepqueue.c b/freebsd/sys/kern/subr_sleepqueue.c index 8376c47b..1af1c825 100644 --- a/freebsd/sys/kern/subr_sleepqueue.c +++ b/freebsd/sys/kern/subr_sleepqueue.c @@ -638,9 +638,7 @@ sleepq_switch(void *wchan, int pri) cpu_self = _Thread_Dispatch_disable_critical(); _Thread_Lock_release_default(executing, &lock_context); - _Giant_Acquire(cpu_self); _Thread_Set_state(executing, STATES_WAITING_FOR_BSD_WAKEUP); - _Giant_Release(cpu_self); _Thread_Lock_acquire_default(executing, &lock_context); @@ -666,10 +664,8 @@ sleepq_switch(void *wchan, int pri) _Thread_Lock_release_default(executing, &lock_context); if (unblock) { - _Giant_Acquire(cpu_self); _Watchdog_Remove(&executing->Timer); _Thread_Clear_state(executing, STATES_WAITING_FOR_BSD_WAKEUP); - _Giant_Release(cpu_self); } _Thread_Dispatch_enable(cpu_self); @@ -971,12 +967,10 @@ sleepq_resume_thread(struct sleepqueue *sq, struct thread *td, int pri) cpu_self = _Thread_Dispatch_disable_critical(); _Thread_Lock_release_default(thread, &lock_context); - _Giant_Acquire(cpu_self); _Watchdog_Remove(&thread->Timer); _Thread_Clear_state(thread, STATES_WAITING_FOR_BSD_WAKEUP); - _Giant_Release(cpu_self); _Thread_Dispatch_enable(cpu_self); } else { _Thread_Lock_release_default(thread, &lock_context); @@ -1201,11 +1195,9 @@ sleepq_timeout(Objects_Id id, void *arg) cpu_self = _Thread_Dispatch_disable_critical(); _Thread_Lock_release_default(thread, &lock_context); - _Giant_Acquire(cpu_self); _Thread_Clear_state(thread, STATES_WAITING_FOR_BSD_WAKEUP); - _Giant_Release(cpu_self); _Thread_Dispatch_enable(cpu_self); } else { _Thread_Lock_release_default(thread, &lock_context); |