Re: [PATCH 3/10] explict migrate tasks for cpu removal

From: Ingo Molnar
Date: Mon May 08 2006 - 03:12:50 EST



* Shaohua Li <shaohua.li@xxxxxxxxx> wrote:

> Make cpu_down explictly migrate tasks off dead cpus, this is to fix a
> dead lock in bulk cpu hotremoval (An example of the deadlock is one
> dead cpu is notifing udev the cpu is dead and khelper thread is on
> another dead cpu). Detail info is in the code.

looks good, except some style issues:

> + /* No need to migrate the tasks: it was best-effort if
> + * they didn't do lock_cpu_hotplug(). Just wake up
> + * the requestors. */

needs proper comment style.

> + migration_req_t *req;
> + req = list_entry(rq->migration_queue.next,
> + migration_req_t, list);

missing newline between variables and code.

Ingo
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