Re: [PATCH 2/2] cfq-iosched: get rid of the need for __GFP_FAIL in cfq_find_alloc_queue()

Jens Axboe
2009-07-09T20:15:25Z

On Thu, Jul 09 2009, Vivek Goyal wrote:
> Sure. Here you go.
>
> In case memory is scarce, we now default to oom_cfqq. Once memory is
> available again, we should allocate a new cfqq and stop using oom_cfqq for
> a particular io context.
>
> Once a new request comes in, check if we are using oom_cfqq, and if yes,
> try to allocate a new cfqq.
>
> Tested the patch by forcing the use of oom_cfqq and upon next request thread
> realized that it was using oom_cfqq and it allocated a new cfqq.

Thanks, applied!

--
Jens Axboe