From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Cc: xen-devel@lists.xensource.com, david.vrabel@citrix.com,
JBeulich@suse.com, Ian.Campbell@citrix.com
Subject: Re: [PATCH 07/12] xen/event: Add reference counting to event channels
Date: Wed, 14 Dec 2011 13:56:18 -0500 [thread overview]
Message-ID: <20111214185618.GC24598@phenom.dumpdata.com> (raw)
In-Reply-To: <1322498951-4392-8-git-send-email-dgdegra@tycho.nsa.gov>
On Mon, Nov 28, 2011 at 11:49:06AM -0500, Daniel De Graaf wrote:
> Event channels exposed to userspace by the evtchn module may be used by
> other modules in an asynchronous manner, which requires that reference
> counting be used to prevent the event channel from being closed before
> the signals are delivered.
>
> The reference count on new event channels defaults to -1 which indicates
> the event channel is not referenced outside the kernel; evtchn_get fails
> if called on such an event channel. The event channels made visible to
> userspace by evtchn have a normal reference count.
So I've 7 through 12 in my branch now. (7,8 and 9 are in the #linux-next
and the 10-12 are in the #testing).
The other 1-6 you have might need to be parceled out (especially the netback
one which usually goes through David Miller). Also I have to double-check -
but did somebody review those 1-6 patches?
next prev parent reply other threads:[~2011-12-14 18:56 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-01 11:51 [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area() David Vrabel
2011-09-01 16:11 ` [Revert] " Konrad Rzeszutek Wilk
2011-09-01 16:11 ` Konrad Rzeszutek Wilk
2011-09-01 20:37 ` Jeremy Fitzhardinge
2011-09-01 20:37 ` Jeremy Fitzhardinge
2011-09-01 21:17 ` Andrew Morton
2011-09-01 21:17 ` Andrew Morton
2011-09-02 11:39 ` David Vrabel
2011-09-02 11:39 ` David Vrabel
2011-09-02 11:39 ` David Vrabel
2011-09-02 22:32 ` Andrew Morton
2011-09-02 22:32 ` Andrew Morton
2011-09-02 23:04 ` Jeremy Fitzhardinge
2011-09-02 23:04 ` Jeremy Fitzhardinge
2011-09-06 16:35 ` [Xen-devel] " Konrad Rzeszutek Wilk
2011-09-06 16:35 ` Konrad Rzeszutek Wilk
2011-11-05 13:38 ` Konrad Rzeszutek Wilk
2011-11-05 13:38 ` Konrad Rzeszutek Wilk
2011-11-05 13:38 ` Konrad Rzeszutek Wilk
2011-11-07 20:36 ` Konrad Rzeszutek Wilk
2011-11-07 20:36 ` Konrad Rzeszutek Wilk
2011-11-08 23:01 ` Andrew Morton
2011-11-08 23:01 ` Andrew Morton
2011-11-08 23:31 ` Konrad Rzeszutek Wilk
2011-11-08 23:31 ` Konrad Rzeszutek Wilk
2011-11-08 23:36 ` Andrew Morton
2011-11-08 23:36 ` Andrew Morton
2011-11-28 9:36 ` Jan Beulich
2011-11-28 10:19 ` Ian Campbell
2011-11-28 11:36 ` David Vrabel
2011-11-28 11:48 ` Ian Campbell
2011-11-28 15:20 ` Konrad Rzeszutek Wilk
2011-11-28 16:48 ` [PATCH 00/12] HVM backends and gnt/event fixups Daniel De Graaf
2011-11-28 16:49 ` [PATCH 01/12] xenbus: Support HVM backends Daniel De Graaf
2011-12-14 19:03 ` Konrad Rzeszutek Wilk
2011-12-14 19:53 ` Daniel De Graaf
2011-11-28 16:49 ` [PATCH 02/12] xenbus: Use grant-table wrapper functions Daniel De Graaf
2011-11-28 16:49 ` [PATCH 03/12] xen/grant-table: Support mappings required by blkback Daniel De Graaf
2011-11-28 16:49 ` [PATCH 04/12] xen/blkback: use grant-table.c hypercall wrappers Daniel De Graaf
2011-11-28 16:49 ` [PATCH 05/12] xen/netback: Enable netback on HVM guests Daniel De Graaf
2011-11-28 16:49 ` [PATCH 06/12] xen/blkback: Enable blkback " Daniel De Graaf
2011-11-28 16:49 ` [PATCH 07/12] xen/event: Add reference counting to event channels Daniel De Graaf
2011-12-14 18:56 ` Konrad Rzeszutek Wilk [this message]
2011-12-14 19:52 ` Daniel De Graaf
2011-12-16 19:35 ` Konrad Rzeszutek Wilk
2011-11-28 16:49 ` [PATCH 08/12] xen/gntalloc: Change gref_lock to a mutex Daniel De Graaf
2011-11-28 16:49 ` [PATCH 09/12] xen/gnt{dev, alloc}: reserve event channels for notify Daniel De Graaf
2011-11-28 16:49 ` [PATCH 10/12] xen/events: prevent calling evtchn_get on invalid channels Daniel De Graaf
2011-11-28 16:49 ` [PATCH 11/12] xen/gntalloc: release grant references on page free Daniel De Graaf
2011-11-28 16:49 ` [PATCH 12/12] xen/gntalloc: fix reference counts on multi-page mappings Daniel De Graaf
2011-09-02 7:22 ` [Xen-devel] Re: [Revert] Re: [PATCH] mm: sync vmalloc address space page tables in alloc_vm_area() Ian Campbell
2011-09-02 7:22 ` Ian Campbell
2011-09-02 7:31 ` Keir Fraser
2011-09-02 7:31 ` Keir Fraser
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