Re: [PATCH 04/14] blk: introduce REQ_SWAP
From: Jens Axboe
Date: Mon Jul 02 2018 - 17:47:52 EST
On 6/29/18 1:25 PM, Josef Bacik wrote:
> From: Josef Bacik <jbacik@xxxxxx>
>
> Just like REQ_META, it's important to know the IO coming down is swap
> in order to guard against potential IO priority inversion issues with
> cgroups. Add REQ_SWAP and use it for all swap IO, and add it to our
> bio_issue_as_root_blkg helper.
We should convert wbt to use that as well.
--
Jens Axboe