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Re: [Qemu-devel] [PATCH v1 07/14] net: hub use lock to protect ports lis
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v1 07/14] net: hub use lock to protect ports list |
Date: |
Tue, 21 May 2013 15:57:52 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, May 07, 2013 at 01:46:55PM +0800, Liu Ping Fan wrote:
> From: Liu Ping Fan <address@hidden>
>
> Hub ports will run on multi-threads, so use lock to protect them.
>
> Signed-off-by: Liu Ping Fan <address@hidden>
> ---
> net/hub.c | 25 ++++++++++++++++++++++++-
> 1 files changed, 24 insertions(+), 1 deletions(-)
Does this rely on net queue re-entrancy detection? Otherwise we'll
deadlock when slirp re-enters the net layer, for example for ARP
requests.
I suggest moving this later in the patch series when the net queue is
protected already.
Stefan
- [Qemu-devel] [PATCH v1 00/14] port network layer onto glib, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 01/14] util: introduce gsource event abstraction, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 02/14] net: introduce bind_ctx to NetClientInfo, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 03/14] net: port vde onto GSource, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 04/14] net: port socket to GSource, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 05/14] net: port tap onto GSource, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 06/14] net: port tap-win32 onto GSource, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 07/14] net: hub use lock to protect ports list, Liu Ping Fan, 2013/05/07
- Re: [Qemu-devel] [PATCH v1 07/14] net: hub use lock to protect ports list,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH v1 08/14] net: introduce lock to protect NetQueue, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 09/14] net: introduce lock to protect NetClientState's peer's access, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 10/14] net: make netclient re-entrant with refcnt, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 11/14] slirp: make timeout local, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 12/14] slirp: make slirp event dispatch based on slirp instance, not global, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 13/14] slirp: handle race condition, Liu Ping Fan, 2013/05/07
- [Qemu-devel] [PATCH v1 14/14] slirp: use lock to protect the slirp_instances, Liu Ping Fan, 2013/05/07
- Re: [Qemu-devel] [PATCH v1 00/14] port network layer onto glib, Stefan Hajnoczi, 2013/05/15