Re: lightnvm: pblk: avoid ref warning on cache creation

From: Javier Gonzalez
Date: Fri Nov 23 2018 - 03:31:12 EST




> On 23 Nov 2018, at 09.24, Matias BjÃrling <mb@xxxxxxxxxxx> wrote:
>
> On 11/23/2018 09:16 AM, Javier Gonzalez wrote:
>>> On 23 Nov 2018, at 09.14, Matias BjÃrling <mb@xxxxxxxxxxx> wrote:
>>>
>>>> On 11/22/2018 02:46 PM, Javier GonzÃlez wrote:
>>>> Matias,
>>>> Can you pick this up for 4.20? Even though it is not an error per se, it
>>>> does trigger an ugly false positive warning when CONFIG_REFCOUNT_FULL is
>>>> set.
>>>> Thanks,
>>>> Javier
>>>> Javier GonzÃlez (1):
>>>> lightnvm: pblk: avoid ref warning on cache creation
>>>> drivers/lightnvm/pblk-init.c | 14 +++++---------
>>>> 1 file changed, 5 insertions(+), 9 deletions(-)
>>>
>>> It is too late to get it for 4.20. I'll pull it in for 4.21.
>> Well, if it is a fix itâs not too late AFAIK. It also applies to a patch picked up in this series. We should have catches this before.
>> But I guess itâs your call.
>
> There is a likelihood that Linus would catch it, with the result of fire & fury. I don't feel like using one of my cat life's for this one.

I donât get how a fix in rc3 will result in Jens or Linus complaining. But Ok, letâs release 4.20 with a false positive warning for use-after-free on pblk creation.


>>> We can put on a Fixes: 1864de94ec9d6 "lightnvm: pblk: stop recreating global caches" if you want Greg and friends to pick picked it up for stable kernels?
>> I didnât add it as it is not a bug in itself. But it is good to add it. Can you do it.
>
> I'll do it.

Thanks.

Javier.