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SubjectRe: [PATCH] sched: remove resetting exec_start in put_prev_task_rt()
On Thu, Jun 2, 2011 at 4:04 PM, Yong Zhang <> wrote:
> On Wed, Jun 1, 2011 at 10:03 PM, Hillf Danton <> wrote:
>> Resetting exec_start, after updated in update_curr_rt(), could open window for
>> messing up the subsequent computations of delta_exec of the given task.
> I can't see how could this happen. what kind of 'subsequent computations'
> do you mean?
> But because exec_start will be reset by _pick_next_task_rt()/set_curr_task_rt(),
> you patch is ok. IMHO it is not critical, it's just cleanup instead.

H i Yong

The window is closed in the two cases, as you tip fingered, would you please
say a few more words about the window and tick timer?


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