Re: [Xen-devel] [PATCH] mem_event: use wait queue when ring is full

[Tim Deegan <tim@xxxxxxx>]

Hi, 

At 20:23 +0100 on 09 Dec (1323462235), Olaf Hering wrote:
> mem_event: use wait queue when ring is full
> 
> This change is based on an idea/patch from Adin Scannell.
> 
> If the ring is full, put the current vcpu to sleep if it belongs to the
> target domain. The wakeup happens in the p2m_*_resume functions. Wakeup
> will take the number of free slots into account.
> 
> A request from foreign domain has to succeed once a slot was claimed
> because such vcpus can not sleep.
> 
> This change fixes also a bug in p2m_mem_paging_drop_page(). Up to now a
> full ring will lead to harmless inconsistency in the pager.
[...] 
> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>

This patch is OK by me as it stands, so
Acked-by: Tim Deegan <tim@xxxxxxx>

but I'll wait for an explicit ack from Andres or Adin before applying
it. 

Cheers,

Tim.


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel