| CPU_NEED_RESCHED(9) | Kernel Developer's Manual | CPU_NEED_RESCHED(9) | 
cpu_need_resched —
#include <sys/cpu.h>
void
  
  cpu_need_resched(struct
    cpu_info *ci, int
    flags);
cpu_need_resched() function is the
  machine-independent interface for the scheduler to notify machine-dependent
  code that a context switch from the current LWP, on the cpu
  ci, is required. This event may occur if a higher
  priority LWP appears on the run queue or if the current LWP has exceeded its
  time slice.
If RESCHED_KPREEMPT flag is specified in
    flags and __HAVE_PREEMPTION C
    pre-processor macro is defined in
    <machine/intr.h>,
    machine-dependent code should make a context switch happen as soon as
    possible even if the cpu is running the kernel code.
If RESCHED_IMMED flag is specified in
    flags, machine-dependent code should make a context
    switch happen as soon as possible. In that case, for example, if
    ci is not the current processor,
    cpu_need_resched() typically issues an inter
    processor call to the processor to make it notice the need of a context
    switch as soon as possible.
Typically, the cpu_need_resched() function
    will perform the following operations:
| July 31, 2010 | NetBSD 9.4 |