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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: kvm@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	Amit Shah <amit.shah@redhat.com>
Subject: Re: [PATCH RFC] virtio-net: remove useless disable on freeze
Date: Thu, 31 May 2012 11:47:18 +0300	[thread overview]
Message-ID: <20120531084717.GB32310@redhat.com> (raw)
In-Reply-To: <20120531183508.f426eb25fe1b94139c637348@canb.auug.org.au>

On Thu, May 31, 2012 at 06:35:08PM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> On Wed, 30 May 2012 19:41:47 +0930 Rusty Russell <rusty@rustcorp.com.au> wrote:
> >
> > On Mon, 28 May 2012 15:53:25 +0300, "Michael S. Tsirkin" <mst@redhat.com> wrote:
> > > On Wed, Apr 04, 2012 at 12:19:54PM +0300, Michael S. Tsirkin wrote:
> > > > disable_cb is just an optimization: it
> > > > can not guarantee that there are no callbacks.
> > > > 
> > > > I didn't yet figure out whether a callback
> > > > in freeze will trigger a bug, but disable_cb
> > > > won't address it in any case. So let's remove
> > > > the useless calls as a first step.
> > > > 
> > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > 
> > > Looks like this isn't in the 3.5 pull request -
> > > just lost in the shuffle?
> > > disable_cb is advisory so can't be relied upon.
> > 
> > I always (try to?) reply as I accept patches.
> > 
> > This one did slip by, but it's harmless so no need to push AFAICT.
> > 
> > Applied.
> 
> This patch exists in two trees in linux-next already ... Davem's net tree
> (so presumably he will send it to Linus shortly) and Michael's vhost tree
> (is that tree needed any more?).

Yes and I dropped the patch from there, just did not push yet.

>  Presumably it is now also in the rr
> tree?
> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@canb.auug.org.au

WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	netdev@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, Amit Shah <amit.shah@redhat.com>,
	kvm@vger.kernel.org
Subject: Re: [PATCH RFC] virtio-net: remove useless disable on freeze
Date: Thu, 31 May 2012 11:47:18 +0300	[thread overview]
Message-ID: <20120531084717.GB32310@redhat.com> (raw)
In-Reply-To: <20120531183508.f426eb25fe1b94139c637348@canb.auug.org.au>

On Thu, May 31, 2012 at 06:35:08PM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> On Wed, 30 May 2012 19:41:47 +0930 Rusty Russell <rusty@rustcorp.com.au> wrote:
> >
> > On Mon, 28 May 2012 15:53:25 +0300, "Michael S. Tsirkin" <mst@redhat.com> wrote:
> > > On Wed, Apr 04, 2012 at 12:19:54PM +0300, Michael S. Tsirkin wrote:
> > > > disable_cb is just an optimization: it
> > > > can not guarantee that there are no callbacks.
> > > > 
> > > > I didn't yet figure out whether a callback
> > > > in freeze will trigger a bug, but disable_cb
> > > > won't address it in any case. So let's remove
> > > > the useless calls as a first step.
> > > > 
> > > > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > > 
> > > Looks like this isn't in the 3.5 pull request -
> > > just lost in the shuffle?
> > > disable_cb is advisory so can't be relied upon.
> > 
> > I always (try to?) reply as I accept patches.
> > 
> > This one did slip by, but it's harmless so no need to push AFAICT.
> > 
> > Applied.
> 
> This patch exists in two trees in linux-next already ... Davem's net tree
> (so presumably he will send it to Linus shortly) and Michael's vhost tree
> (is that tree needed any more?).

Yes and I dropped the patch from there, just did not push yet.

>  Presumably it is now also in the rr
> tree?
> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@canb.auug.org.au



  reply	other threads:[~2012-05-31  8:47 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-04  9:19 [PATCH RFC] virtio-net: remove useless disable on freeze Michael S. Tsirkin
2012-04-04  9:19 ` Michael S. Tsirkin
2012-05-03 10:59 ` Amit Shah
2012-05-03 10:59   ` Amit Shah
2012-05-03 11:08   ` Michael S. Tsirkin
2012-05-03 11:08     ` Michael S. Tsirkin
2012-05-28 12:53 ` Michael S. Tsirkin
2012-05-28 12:53   ` Michael S. Tsirkin
2012-05-30 10:11   ` Rusty Russell
2012-05-30 10:11     ` Rusty Russell
2012-05-31  8:35     ` Stephen Rothwell
2012-05-31  8:35       ` Stephen Rothwell
2012-05-31  8:47       ` Michael S. Tsirkin [this message]
2012-05-31  8:47         ` Michael S. Tsirkin
2012-05-31  9:04         ` Michael S. Tsirkin
2012-05-31  9:04           ` Michael S. Tsirkin

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