yield_to9
Yield the current processor to another thread in your thread group, or accelerate that thread toward the processor it's on.
Usage
int __sched yield_to(struct task_struct * p, bool preempt);
Arguments
p
target task
preempt
whether task preemption is allowed or not
Overview
It's the caller's job to ensure that the target task struct can't go away on us before we can do any checks.
Return
true (>0) if we indeed boosted the target task. false (0) if we failed to boost the target. -ESRCH if there's no task to yield to.
Releases
2 releases since Debian 7 (Wheezy); the text changed 1 time.