linux-kernel - Re: [PATCH net-next 00/10] rxrpc: Miscellaneous fixes

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Date:   Fri, 16 Sep 2016 01:55:10 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     dhowells@...hat.com
Cc:     netdev@...r.kernel.org, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 00/10] rxrpc: Miscellaneous fixes

From: David Howells <dhowells@...hat.com>
Date: Tue, 13 Sep 2016 23:20:56 +0100

> 
> Here's a set of miscellaneous fix patches.  There are a couple of points of
> note:
> 
>  (1) There is one non-fix patch that adjusts the call ref tracking
>      tracepoint to make kernel API-held refs on calls more obvious.  This
>      is a prerequisite for the patch that fixes prealloc refcounting.
> 
>  (2) The final patch alters how jumbo packets that partially exceed the
>      receive window are handled.  Previously, space was being left in the
>      Rx buffer for them, but this significantly hurts performance as the Rx
>      window can't be increased to match the OpenAFS Tx window size.
> 
>      Instead, the excess subpackets are discarded and an EXCEEDS_WINDOW ACK
>      is generated for the first.  To avoid the problem of someone trying to
>      run the kernel out of space by feeding the kernel a series of
>      overlapping maximal jumbo packets, we stop allowing jumbo packets on a
>      call if we encounter more than three jumbo packets with duplicate or
>      excessive subpackets.
 ...
> Tagged thusly:
> 
> 	git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
> 	rxrpc-rewrite-20160913-1

Pulled, thanks David.