From: David Miller <davem@davemloft.net>
To: dhowells@redhat.com
Cc: netdev@vger.kernel.org, linux-afs@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 00/10] rxrpc: Miscellaneous fixes
Date: Fri, 16 Sep 2016 01:55:10 -0400 (EDT) [thread overview]
Message-ID: <20160916.015510.564823888003392258.davem@davemloft.net> (raw)
In-Reply-To: <147380525614.23135.7539695651371953351.stgit@warthog.procyon.org.uk>
From: David Howells <dhowells@redhat.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.
prev parent reply other threads:[~2016-09-16 5:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-13 22:20 [PATCH net-next 00/10] rxrpc: Miscellaneous fixes David Howells
2016-09-13 22:21 ` [PATCH net-next 01/10] rxrpc: Make sure we initialise the peer hash key David Howells
2016-09-13 22:21 ` [PATCH net-next 02/10] rxrpc: Add missing wakeup on Tx window rotation David Howells
2016-09-13 22:21 ` [PATCH net-next 03/10] rxrpc: The IDLE ACK packet should use rxrpc_idle_ack_delay David Howells
2016-09-13 22:21 ` [PATCH net-next 04/10] rxrpc: Requeue call for recvmsg if more data David Howells
2016-09-13 22:21 ` [PATCH net-next 05/10] rxrpc: Add missing unlock in rxrpc_call_accept() David Howells
2016-09-13 22:21 ` [PATCH net-next 06/10] rxrpc: Use skb->len not skb->data_len David Howells
2016-09-13 22:21 ` [PATCH net-next 07/10] rxrpc: Allow tx_winsize to grow in response to an ACK David Howells
2016-09-13 22:21 ` [PATCH net-next 08/10] rxrpc: Adjust the call ref tracepoint to show kernel API refs David Howells
2016-09-13 22:21 ` [PATCH net-next 09/10] rxrpc: Fix prealloc refcounting David Howells
2016-09-13 22:22 ` [PATCH net-next 10/10] rxrpc: Correctly initialise, limit and transmit call->rx_winsize David Howells
2016-09-16 5:55 ` David Miller [this message]
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