Re: [GIT PULL] NVMe changes for 4.5-rc1

From: Jens Axboe
Date: Fri Jan 22 2016 - 11:29:46 EST


On 01/22/2016 09:26 AM, Linus Torvalds wrote:

On Jan 22, 2016 7:59 AM, "Jens Axboe" <axboe@xxxxxx
<mailto:axboe@xxxxxx>> wrote:
>>
>> - nvme_dev_remove() got renamed to nvme_remove_namespaces(), but also
>> lost the "dev" argument (it takes "struct nvme_ctrl *ctrl" now).
>
> &dev->ctrl

That's not the problem - the code does that already.

But we want the dev argument *back*, since the function now wants to do
that nvme_io_incapable() check and then cancel the IO on it.

And I didn't know if you guys would want to use container_of() or just
change the calling convention back to using "dev", or perhaps just
decide to do the IO cleanup in the caller instead. That last option
seems the cleanest, since now nvme_dev_remove_namespaces() is just about
the namespace, and maybe it would be better to re-introduce a whole new
nvme_dev_remove() that does the old thing.

The latter is the cleanest approach, we'll get it fixed up.

So I decided to not do anything at all, and just let you guys sorry it
out instead.

Is that like a Canadian duel?

--
Jens Axboe