On 8/10/21 9:23 PM, Baoquan He wrote:
> On 08/10/21 at 03:52pm, Tom Lendacky wrote:
>> On 8/5/21 1:54 AM, Baoquan He wrote:
>>> On 06/24/21 at 11:47am, Robin Murphy wrote:
On 2021-06-24 10:29, Baoquan He wrote:
> On 06/24/21 at 08:40am, Christoph Hellwig wrote:
...
> Looking at the
On Tue, Aug 10, 2021 at 03:52:25PM -0500, Tom Lendacky via iommu wrote:
> I think the atomic pool is used by the NVMe driver. My understanding is
> that driver will do a dma_alloc_coherent() from interrupt context, so it
> needs to use GFP_ATOMIC. The pool was created because dma_alloc_coherent()
On 08/10/21 at 03:52pm, Tom Lendacky wrote:
> On 8/5/21 1:54 AM, Baoquan He wrote:
> > On 06/24/21 at 11:47am, Robin Murphy wrote:
> >> On 2021-06-24 10:29, Baoquan He wrote:
> >>> On 06/24/21 at 08:40am, Christoph Hellwig wrote:
> So reduce the amount allocated. But the pool is needed for
On 8/5/21 1:54 AM, Baoquan He wrote:
> On 06/24/21 at 11:47am, Robin Murphy wrote:
>> On 2021-06-24 10:29, Baoquan He wrote:
>>> On 06/24/21 at 08:40am, Christoph Hellwig wrote:
So reduce the amount allocated. But the pool is needed for proper
operation on systems with memory
On 06/24/21 at 11:47am, Robin Murphy wrote:
> On 2021-06-24 10:29, Baoquan He wrote:
> > On 06/24/21 at 08:40am, Christoph Hellwig wrote:
> > > So reduce the amount allocated. But the pool is needed for proper
> > > operation on systems with memory encryption. And please add the right
> > >
On Thu, Jun 24, 2021 at 11:47:31AM +0100, Robin Murphy wrote:
> Hmm, I think the Kconfig reshuffle has actually left a slight wrinkle here.
> For DMA_DIRECT_REMAP=y we can assume an atomic pool is always needed, since
> that was the original behaviour anyway. However the implications of
>
On 2021-06-24 10:29, Baoquan He wrote:
On 06/24/21 at 08:40am, Christoph Hellwig wrote:
So reduce the amount allocated. But the pool is needed for proper
operation on systems with memory encryption. And please add the right
maintainer or at least mailing list for the code you're touching next
On 06/24/21 at 08:40am, Christoph Hellwig wrote:
> So reduce the amount allocated. But the pool is needed for proper
> operation on systems with memory encryption. And please add the right
> maintainer or at least mailing list for the code you're touching next
> time.
Oh, I thoutht it's memory
