13 Feb
2014
13 Feb
'14
10:10 a.m.
Hi,
On 02/13/2014 01:15 PM, Alex Shi wrote:
On 02/11/2014 07:11 PM, Daniel Lezcano wrote:
On 02/10/2014 10:24 AM, Preeti Murthy wrote:
HI Daniel,
Isn't the only scenario where another cpu can put an idle task on our runqueue,
Well, I am not sure to understand what you meant, but I assume you are asking if it is possible to have a task to be pulled when we are idle, right ?
This patch fixes the race when the current cpu is *about* to enter idle when calling schedule().
Preeti said the she didn't see a possible to insert a task on the cpu.
I also did a quick check, maybe task come from wakeup path?
Yes this is possible. Thanks for pointing this :)
Reviewed-by: Preeti U Murthy preeti@linux.vnet.ibm.com