linux-kernel - Re: iov_iter

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Date:   Sat, 29 Apr 2017 03:47:36 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     Dave Jones <davej@...emonkey.org.uk>,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: iov_iter_pipe warning.

On Fri, Apr 28, 2017 at 09:58:47PM -0400, Dave Jones wrote:
> On Fri, Apr 28, 2017 at 07:25:12PM +0100, Al Viro wrote:
>  > On Fri, Apr 28, 2017 at 06:20:25PM +0100, Al Viro wrote:
>  > > On Fri, Apr 28, 2017 at 12:50:24PM -0400, Dave Jones wrote:
>  > > > currently running v4.11-rc8-75-gf83246089ca0
>  > > > 
>  > > > sunrpc bit is for the other unrelated problem I'm chasing.
>  > > > 
>  > > > note also, I saw the backtrace without the fs/splice.c changes.
>  > > 
>  > > 	Interesting...  Could you add this and see if that triggers?
>  > 
>  > Gyah...  It's a bloody dumb braino in iov_iter_revert() for pipe-backed
>  > ones.  Sorry, the oneliner below should fix it.
> 
> 5 hrs in, looking good so far.

Mind your Tested-by on the fix?