Re: NFS/d_splice_alias breakage

From: Oleg Drokin
Date: Mon Jun 20 2016 - 11:47:12 EST



On Jun 20, 2016, at 11:43 AM, Anna Schumaker wrote:

> Hi,
>
> On 06/20/2016 10:08 AM, Al Viro wrote:
>> On Mon, Jun 20, 2016 at 09:25:12AM -0400, Oleg Drokin wrote:
>>> It looks like this patch was totally forgotten?
>>> I don't see it in neither vfs nor nfs trees and yet it fixes a very easy to cause
>>> crash in nfs code. And I think it's unrelated to the other parallel case too.
>>
>> I assumed it would go through NFS tree, seeing that it's NFS-specific and
>> has nothing to do with any of the recent VFS changes (oops is triggerable
>> starting from 3.11); I can certainly put it through vfs.git, and there
>> will be changes nearby, but this one should go into -stable as a separate
>> patch.
>
> I was going to put together an nfs bugfixes pull request for 4.7 this week, so I can include the patch there if this is easy to hit.

Yes, it is very easy to hit.