[PATCH 0/3] fixes for ubifs xattr operations

[Richard Weinberger]

On Tue, Nov 3, 2020 at 3:04 AM Hou Tao <houtao1 at huawei.com> wrote:
>
> Hi,
>
> On 2020/11/1 5:10, Richard Weinberger wrote:
> > Tao,
> >
> > On Fri, Oct 23, 2020 at 9:25 AM Hou Tao <houtao1 at huawei.com> wrote:
> >>
> >> Hi Richard,
> >>
> >> I have written two xfstest cases [1] for these fixes three months ago, could you please
> >> check whether the proposed solution is OK ?
> >
> > Thanks for your time and reminding me about this issue!
> > I agree that this is a problem but I'm not sure whether the lockless
> > solution is the right path to go.
> > DId you try the locking approach?
> >
> Yes. Adding an extra lock for xattr ops also works. I will post a V2 soon.

Sounds promising!
Btw. you think of an extra rw lock because host->ui_mutex is too cause
grained and
would block xattr parallel read operations?

-- 
Thanks,
//richard