Re: [PATCH V2] umem: fix up unplugging

[Tao Guo]

Thanks Jens. I can do that for 3.6 kernel.
-Tao

On Thu, Jun 14, 2012 at 3:18 AM, Jens Axboe <jaxboe@xxxxxxxxxxxx> wrote:
> On Thu, Jun 07 2012, Tao Guo wrote:
>> Fix a regression introduced by 7eaceaccab5f40 ("block: remove per-queue
>> plugging"). ÂIn that patch, Jens removed the whole mm_unplug_device()
>> function, which used to be the trigger to make umem start to work.
>>
>> We need to implement unplugging to make umem start to work, or I/O will
>> never be triggered.
>
> Applied this one, dropped the other two. Would still be nice to move
> this generic functionality into the block core and unify md/umem in this
> regard for 3.6, if you would like to do that.
>
> --
> Jens Axboe
>
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