Re: [PATCH 2/2] cfq-iosched: get rid of the need for __GFP_FAIL incfq_find_alloc_queue()
From: Jens Axboe
Date: Thu Jul 09 2009 - 16:15:25 EST
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
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