man yield_to (9): yield the current processor to another thread in your thread group, or accelerate that thread toward the processor it's on.

yield_to(9) yield the current processor to another thread in your thread group, or accelerate that thread toward the processor it's on.

SYNOPSIS

bool __sched yield_to(struct task_struct * p, bool preempt);

ARGUMENTS

p

: target task

preempt

: whether task preemption is allowed or not

DESCRIPTION

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.

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