Re: [PATCH 1/3] block: Implement a blk_yield function to voluntarily give up the I/O scheduler.

[Jeff Moyer]

Jens Axboe <axboe@xxxxxxxxx> writes:

> On 25/06/10 18.51, Jeff Moyer wrote:
>>>> +	cfq_log_cfqq(cfqd, cfqq, "yielding queue to %d", tsk->pid);
>>>> +	cfqq->yield_to = new_cic;
>>>
>>> We are stashing away a pointer to cic without taking reference?
>> 
>> There is no reference counting on the cic.
>
> Not on the cic itself, but on the io context it belongs to. So you
> need to grab a reference to that, if you are stowing a reference
> to the cic.

OK, easy enough.  Thanks!

Jeff
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