Re: [RFC][PATCH 6/7] sched: Balance RT tasks when forked as well

From: Peter Zijlstra
Date: Tue Jul 26 2011 - 08:25:36 EST


On Thu, 2011-06-16 at 21:55 -0400, Steven Rostedt wrote:
> + /* For anything but wake ups, just return the task_cpu */
> + if (sd_flag != SD_BALANCE_WAKE || sd_flag != SD_BALANCE_FORK)

So we call select_task_rq() with SD_BALANCE_{WAKE,EXEC,FORK},

(WAKE != WAKE -> 0 || WAKE != FORK -> 1) -> 1
(EXEC != WAKE -> 1 ) -> 1
(FORK != WAKE -> 1 ) -> 1

IOW, you never end up doing anything now.. surely you didn't mean that?!
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