Re: [PATCH] lightnvm: fix memory leak when submit fails

[Matias Bjørling]

On 21/01/2021 13.47, Jens Axboe wrote:
> On 1/21/21 12:22 AM, Pan Bian wrote:
> > The allocated page is not released if error occurs in
> > nvm_submit_io_sync_raw(). __free_page() is moved ealier to avoid
> > possible memory leak issue.
> Applied, thanks.
>
> General question for Matias - is lightnvm maintained anymore at all, or
> should we remove it? The project seems dead from my pov, and I don't
> even remember anyone even reviewing fixes from other people.
Hi Jens,

ZNS has superseded OCSSD/lightnvm. As a result, the hardware and 
software development around OCSSD have also moved on to ZNS. To my 
knowledge, there is not anyone implementing OCSSD1.2/2.0 commercially at 
this point, and what has been deployed in production does not utilize 
the Linux kernel stack.

I do not mind continuing to keep an eye on it, but on the other hand, it 
has served its purpose. It enabled the "Open-Channel SSD architectures" 
of the world to take hold in the market and thereby gained enough 
momentum to be standardized in NVMe as ZNS.

Would you like me to send a PR to remove lightnvm immediately, or should 
we mark it as deprecated for a while before pulling it?

Best, Matias