From 5eb11ac75440e8ad1354b6514e28d7f697809acc Mon Sep 17 00:00:00 2001 From: "Michael I. Bushnell" Date: Wed, 6 Sep 1995 19:34:03 +0000 Subject: Formerly sched.c.~7~ --- pfinet/sched.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'pfinet/sched.c') diff --git a/pfinet/sched.c b/pfinet/sched.c index 38a419ff..916a7e1f 100644 --- a/pfinet/sched.c +++ b/pfinet/sched.c @@ -21,37 +21,31 @@ #include #include -struct mutex global_interrupt_lock = MUTEX_INITIALIZER; +struct mutex global_lock = MUTEX_INITIALIZER; struct task_struct *current; -struct mutex user_kernel_lock = MUTEX_INITIALIZER; - /* Call this before doing kernel-level calls; this enforces the non-preemptibility of the kernel. */ void start_kernel (struct task_struct *task) { - mutex_lock (&user_kernel_lock); - mutex_lock (&global_interrupt_lock); + mutex_lock (&global_lock); current = task; - mutex_unlock (&global_interrupt_lock); } /* Call this when done doing a kernel-level call. */ void end_kernel (void) { - mutex_lock (&global_interrupt_lock); current = 0; - mutex_unlock (&global_interrupt_lock); - mutex_unlock (&user_kernel_lock); + mutex_unlock (&global_lock); } void interruptible_sleep_on (struct wait_queue **p) { - condition_wait (&(*p)->c, &user_kernel_lock); + condition_wait (&(*p)->c, &global_lock); } void -- cgit v1.2.3