 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] [PATCH ] Avoid potential suspend event channel race
| To: | Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH ] Avoid potential suspend event channel race |
| From: | "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> |
| Date: | Wed, 18 Mar 2009 17:59:22 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Delivery-date: | Wed, 18 Mar 2009 03:00:32 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | AcmnsDNVzvD8hDhYSsyRhmE/OIONhQ== |
| Thread-topic: | [PATCH ] Avoid potential suspend event channel race |
As discussed previously (see http://lists.xensource.com/archives/html/xen-devel/2009-03/msg00570.html), we try to make access to event channel be protected. The attached patch achieved it through one lock file under /var/lib/xen/. evet_channel.patch: Changes the xc_save.c, to remove the dependency to the global si structure and has no logic change. The patch move_evtchn.patch : Move the suspend event channel function to libxc, it will use the /var/lib/xen/suspend_evtchn_lock.d to protect the access. I'm not sure if using lock file is a right method, so any feedback is welcome. signed-off-by: Jiang Yunhong <yunhong.jiang@xxxxxxxxx> Thanks Yunhong Jiang
_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Xen-devel] Possible qemu-dm breakage (cset: "Add missing #include <assert.h>"), Simon Horman |
|---|---|
| Next by Date: | [Xen-devel] [PATCH] Change the mod_lx_entry to accept the vcpu parameter, Jiang, Yunhong |
| Previous by Thread: | [Xen-devel] [PATCH] Qemu: support SR-IOV Virtual Function passthrough, Yu Zhao |
| Next by Thread: | [Xen-devel] [PATCH] Change the mod_lx_entry to accept the vcpu parameter, Jiang, Yunhong |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
