Re: Dcache oops

Oleg Drokin
2016-06-03T22:42:12Z

On Jun 3, 2016, at 6:36 PM, Linus Torvalds wrote:

> On Fri, Jun 3, 2016 at 3:23 PM, Al Viro <viro@zeniv.linux.org.uk> wrote:
>> On Fri, Jun 03, 2016 at 03:00:02PM -0700, Linus Torvalds wrote:
>>>>
>>> Normally it's done at terminate_walk() time. But I note that in
>>> walk_component(), we do put_link(nd) which does a do_delayed_call(),
>>> but does *not* do a clear_delayed_call(), so now I think a subsequent
>>> terminate_walk() might drop it *again*.
>>
>> Nope - put_link() also decrements nd->depth. No double calls there...
>
> Yeah, I figured that out, and then continued to try to look at other cases..
>
> Happy to hear that you seem to have figured it out.
>
> But why did it apparently only start happening now?

Apparently nobody runs NFS in a serious manner these days anymore.
EOPENSTALE is only used by NFS.