From: Forrest shi
dma status check function fsl_tx_status is heavily called in
a tight loop and the desc lock in fsl_tx_status contended by
the dma status update function. this caused the dma performance
degrades much.
this patch releases the lock in the fsl_tx_status functio
(2011/12/26 8:35), Paul Mackerras wrote:
On Fri, Dec 23, 2011 at 02:23:30PM +0100, Alexander Graf wrote:
So if I read things correctly, this is the only case you're setting
pages as dirty. What if you have the following:
guest adds HTAB entry x
guest writes to page mapped by x
guest r
On Fri, Dec 23, 2011 at 02:23:30PM +0100, Alexander Graf wrote:
> So if I read things correctly, this is the only case you're setting
> pages as dirty. What if you have the following:
>
> guest adds HTAB entry x
> guest writes to page mapped by x
> guest removes HTAB entry x
> host fetche
On 24.12.2011, at 07:53, Benjamin Herrenschmidt wrote:
> On Fri, 2011-12-23 at 17:54 +0100, Alexander Graf wrote:
>> Hi guys,
>>
>> While trying to test my latest patch queue for ppc kvm, I realized
>> that even though the device trees got updated, the p1020 box still is
>> unstable. The trace b
