> -Original Message-
> From: Wei Liu [mailto:wei.l...@citrix.com]
> Sent: 10 May 2016 14:29
> To: Paul Durrant
> Cc: xen-de...@lists.xenproject.org; netdev@vger.kernel.org; Wei Liu
> Subject: Re: [PATCH net-next 2/4] xen-netback: add control protocol
> implementatio
On Thu, May 05, 2016 at 12:19:28PM +0100, Paul Durrant wrote:
> My recent patch to include/xen/interface/io/netif.h defines a new shared
> ring (in addition to the rx and tx rings) for passing control messages
> from a VM frontend driver to a backend driver.
>
> A previous patch added the necessar
> -Original Message-
> From: David Miller [mailto:da...@davemloft.net]
> Sent: 07 May 2016 20:09
> To: Paul Durrant
> Cc: xen-de...@lists.xenproject.org; netdev@vger.kernel.org; Wei Liu
> Subject: Re: [PATCH net-next 2/4] xen-netback: add control protocol
> implement
From: Paul Durrant
Date: Thu, 5 May 2016 12:19:28 +0100
> +struct xenvif_hash_cache {
> + rwlock_t lock;
You really don't want to lock on every SKB hash computation like
this, turn this into a spin lock for locking the write side and
use RCU locking for lookup and usage.
THanks.
