Re: [PATCH v5 0/6] Fix races between blkcg code and request queue initialization and cleanup

Jens Axboe
2018-02-28T18:19:15Z

On 2/28/18 11:15 AM, Bart Van Assche wrote:
> Hello Jens,
>
> Recently Joseph Qi identified races between the block cgroup code and request
> queue initialization and cleanup. This patch series address these races.
>
> This patch series is structured as follows:
> - Patches 3..6 fix the aforementioned races.
> - Patches 1..3 ensure that all maintained block drivers delete the gendisk
> before cleaning up the request queue because patches 3..6 are only safe
> if block driver shutdown uses this order. The gdrom driver (Sega Dreamcast
> GD-ROM driver) has not been modified because from what I saw in the changelog
> of this driver it seems to me like that driver is no longer in use. According
> to what I found on the web production of Sega Dreamcast was stopped in 2001
> (https://www.theguardian.com/business/2001/feb/01/4).
>
> Please consider these patches for kernel v4.17.

Didn't Ming ack the first three?

--
Jens Axboe