From: "Durrant, Paul" <pdurrant@amazon.com>
To: "Jürgen Groß" <jgross@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [Xen-devel] [PATCH 3/4] xen/interface: don't discard pending work in FRONT/BACK_RING_ATTACH
Date: Mon, 9 Dec 2019 12:50:10 +0000 [thread overview]
Message-ID: <33b8644a74034544aa72187428780d98@EX13D32EUC003.ant.amazon.com> (raw)
In-Reply-To: <5777c17b-9028-2525-1322-6c05f1ce3aab@suse.com>
> -----Original Message-----
> From: Xen-devel <xen-devel-bounces@lists.xenproject.org> On Behalf Of
> Jürgen Groß
> Sent: 09 December 2019 11:52
> To: Roger Pau Monné <roger.pau@citrix.com>; Durrant, Paul
> <pdurrant@amazon.com>
> Cc: xen-devel@lists.xenproject.org; Boris Ostrovsky
> <boris.ostrovsky@oracle.com>; Stefano Stabellini <sstabellini@kernel.org>;
> linux-kernel@vger.kernel.org
> Subject: Re: [Xen-devel] [PATCH 3/4] xen/interface: don't discard pending
> work in FRONT/BACK_RING_ATTACH
>
> On 09.12.19 12:41, Roger Pau Monné wrote:
> > On Thu, Dec 05, 2019 at 02:01:22PM +0000, Paul Durrant wrote:
> >> Currently these macros will skip over any requests/responses that are
> >> added to the shared ring whilst it is detached. This, in general, is
> not
> >> a desirable semantic since most frontend implementations will
> eventually
> >> block waiting for a response which would either never appear or never
> be
> >> processed.
> >>
> >> NOTE: These macros are currently unused. BACK_RING_ATTACH(), however,
> will
> >> be used in a subsequent patch.
> >>
> >> Signed-off-by: Paul Durrant <pdurrant@amazon.com>
> >
> > Those headers come from Xen, and should be modified in Xen first and
> > then imported into Linux IMO.
>
> In theory, yes. But the Xen variant doesn't contain the ATTACH macros.
>
OOI do we have a policy about this? Re-importing headers into Linux wholesale is always slightly painful because of interdependencies and style checking issues.
Paul
>
> Juergen
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xenproject.org
> https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2019-12-09 12:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 14:01 [PATCH 0/4] xen-blkback: support live update Paul Durrant
2019-12-05 14:01 ` [PATCH 1/4] xenbus: move xenbus_dev_shutdown() into frontend code Paul Durrant
2019-12-09 11:33 ` Jürgen Groß
2019-12-09 11:55 ` Durrant, Paul
2019-12-09 11:57 ` Jürgen Groß
2019-12-05 14:01 ` [PATCH 2/4] xenbus: limit when state is forced to closed Paul Durrant
2019-12-09 11:39 ` [Xen-devel] " Roger Pau Monné
2019-12-09 11:55 ` Jürgen Groß
2019-12-09 12:03 ` Durrant, Paul
2019-12-09 12:08 ` Jürgen Groß
2019-12-09 12:19 ` Durrant, Paul
2019-12-09 13:38 ` Jürgen Groß
2019-12-09 14:06 ` Durrant, Paul
2019-12-09 14:09 ` Jürgen Groß
2019-12-09 14:23 ` Durrant, Paul
2019-12-09 14:41 ` Jürgen Groß
2019-12-09 14:43 ` Durrant, Paul
2019-12-09 12:01 ` Durrant, Paul
2019-12-09 12:25 ` Roger Pau Monné
2019-12-09 12:40 ` Durrant, Paul
2019-12-09 14:28 ` Roger Pau Monné
2019-12-09 14:41 ` Durrant, Paul
2019-12-09 15:13 ` Roger Pau Monné
2019-12-09 16:26 ` Durrant, Paul
2019-12-09 17:17 ` Roger Pau Monné
2019-12-09 17:23 ` Durrant, Paul
2019-12-05 14:01 ` [PATCH 3/4] xen/interface: don't discard pending work in FRONT/BACK_RING_ATTACH Paul Durrant
2019-12-09 11:41 ` [Xen-devel] " Roger Pau Monné
2019-12-09 11:52 ` Jürgen Groß
2019-12-09 12:50 ` Durrant, Paul [this message]
2019-12-09 13:55 ` Jürgen Groß
2019-12-09 16:38 ` Durrant, Paul
2019-12-10 11:42 ` Jürgen Groß
2019-12-05 14:01 ` [PATCH 4/4] xen-blkback: support dynamic unbind/bind Paul Durrant
2019-12-09 12:17 ` Roger Pau Monné
2019-12-09 12:24 ` Durrant, Paul
2019-12-09 13:57 ` Jürgen Groß
2019-12-09 14:01 ` Durrant, Paul
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