On Wed, Jun 27, 2001 at 02:57:43PM -0700, Scott Long wrote:
> Does reschedule_idle() ever cause the current CPU to get scheduled? That
> is, if someone calls wake_up() and wakes up a higher-priority process
> could reschedule_idle() potentially immediately switch the current CPU
> to that higher-priority process?
No. reschedule_idle() never directly performs a 'task to task' context
switch itself. Instead, it simply marks a currently running task to
indicate that a reschedule is needed on that task's CPU. No task context
switch will occur until schedule() is run on that CPU.
-- Mike Kravetz mkravetz@sequent.com IBM Linux Technology Center - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Jun 30 2001 - 21:00:17 EST