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From: Lukas Straub <lukasstraub2@web.de>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: "Kevin Wolf" <kwolf@redhat.com>,
	qemu-block <qemu-block@nongnu.org>,
	"Juan Quintela" <quintela@redhat.com>,
	qemu-devel <qemu-devel@nongnu.org>,
	"Max Reitz" <mreitz@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Marc-André Lureau" <marcandre.lureau@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [PATCH 2/5] io/channel.c,io/channel-socket.c: Add yank feature
Date: Mon, 11 May 2020 22:00:42 +0200	[thread overview]
Message-ID: <20200511220042.1f226f70@luklap> (raw)
In-Reply-To: <20200511115146.GK1135885@redhat.com>

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On Mon, 11 May 2020 12:51:46 +0100
Daniel P. Berrangé <berrange@redhat.com> wrote:

> On Mon, May 11, 2020 at 01:14:41PM +0200, Lukas Straub wrote:
> > Add qio_channel_set_yank function to channel and to channel-socket,
> > which will register a yank function. The yank function calls
> > shutdown() on the socket.
> > 
> > Signed-off-by: Lukas Straub <lukasstraub2@web.de>
> > ---
> >  Makefile.objs               |  1 +
> >  include/io/channel-socket.h |  1 +
> >  include/io/channel.h        | 12 ++++++++++++
> >  io/channel-socket.c         | 29 +++++++++++++++++++++++++++++
> >  io/channel.c                |  9 +++++++++
> >  5 files changed, 52 insertions(+)  
> 
> Assuming we want the yank feature (which I'm not entirely convinced
> of), then I don't think any of this addition should exist. The
> QIOChannel class already provides a "qio_channel_shutdown" method
> which can be invoked. The layer above which is using the QIOChannel
> should be calling this existing qio_channel_shutdown method in
> response to any yank request.  The I/O layer shouldn't have any
> direct dependancy on the yank feature.

Having the code here simplifys the code in the other places.

Regards,
Lukas Straub

> 
> Regards,
> Daniel


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  reply	other threads:[~2020-05-11 20:05 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-11 11:14 [PATCH 0/5] Introduce 'yank' oob qmp command to recover from hanging qemu Lukas Straub
2020-05-11 11:14 ` [PATCH 1/5] Introduce yank feature Lukas Straub
2020-05-11 11:14 ` [PATCH 2/5] io/channel.c,io/channel-socket.c: Add " Lukas Straub
2020-05-11 11:51   ` Daniel P. Berrangé
2020-05-11 20:00     ` Lukas Straub [this message]
2020-05-12  8:52       ` Daniel P. Berrangé
2020-05-11 11:14 ` [PATCH 3/5] block/nbd.c: " Lukas Straub
2020-05-11 16:19   ` Dr. David Alan Gilbert
2020-05-11 17:05     ` Lukas Straub
2020-05-11 17:24       ` Dr. David Alan Gilbert
2020-05-12  8:54       ` Daniel P. Berrangé
2020-05-15  9:48         ` Lukas Straub
2020-05-15 10:04           ` Daniel P. Berrangé
2020-05-15 10:14             ` Lukas Straub
2020-05-15 10:26               ` Daniel P. Berrangé
2020-05-15 13:03                 ` Lukas Straub
2020-05-15 13:45                   ` Daniel P. Berrangé
2020-05-11 11:14 ` [PATCH 4/5] chardev/char-socket.c: " Lukas Straub
2020-05-12  8:56   ` Daniel P. Berrangé
2020-05-11 11:14 ` [PATCH 5/5] migration: " Lukas Straub
2020-05-11 11:49 ` [PATCH 0/5] Introduce 'yank' oob qmp command to recover from hanging qemu Daniel P. Berrangé
2020-05-11 12:07   ` Dr. David Alan Gilbert
2020-05-11 12:17     ` Daniel P. Berrangé
2020-05-11 15:46       ` Dr. David Alan Gilbert
2020-05-12  9:32         ` Lukas Straub
2020-05-12  9:43           ` Daniel P. Berrangé
2020-05-12 18:58             ` Dr. David Alan Gilbert
2020-05-13  8:41               ` Daniel P. Berrangé
2020-05-12 19:42             ` Lukas Straub
2020-05-13 10:32             ` Kevin Wolf
2020-05-13 10:53               ` Dr. David Alan Gilbert
2020-05-13 11:13                 ` Kevin Wolf
2020-05-13 11:26                   ` Daniel P. Berrangé
2020-05-13 11:58                     ` Paolo Bonzini
2020-05-13 12:25                       ` Dr. David Alan Gilbert
2020-05-13 12:32                       ` Kevin Wolf
2020-05-13 12:18                     ` Kevin Wolf
2020-05-13 12:56                   ` Dr. David Alan Gilbert
2020-05-13 13:08                     ` Daniel P. Berrangé
2020-05-13 13:48                       ` Dr. David Alan Gilbert
2020-05-13 13:57                         ` Eric Blake
2020-05-13 14:06                         ` Kevin Wolf
2020-05-13 14:18                           ` Eric Blake
2020-09-01 10:35                   ` Markus Armbruster
2020-05-11 19:41       ` Lukas Straub
2020-05-11 18:12   ` Lukas Straub
2020-05-12  9:03     ` Daniel P. Berrangé
2020-05-12  9:06       ` Dr. David Alan Gilbert
2020-05-12  9:09     ` Dr. David Alan Gilbert
2020-05-13 19:12 ` Lukas Straub
2020-05-14 10:41   ` Kevin Wolf
2020-05-14 11:01   ` Dr. David Alan Gilbert

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