>
> On Tue, May 07, 2019 at 08:37:01AM -0700, Dan Williams wrote:
> > On Thu, Apr 25, 2019 at 10:03 PM Pankaj Gupta wrote:
> > >
> > > Dont support 'MAP_SYNC' with non-DAX files and DAX files
> > > with asynchronous dax_device. Virtio pmem provides
> > > asynchronous host page cache flush mecha
>
> From: Pankaj Gupta
> Date: Thu, Apr 25, 2019 at 10:00 PM
>
> > +static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
> > + struct dax_device *dax_dev)
> > +{
> > + return !(vma->flags & VM_SYNC);
> > +}
>
> Shouldn't it be rather `ret
On 2019/5/8 下午12:12, Michael S. Tsirkin wrote:
On Mon, May 06, 2019 at 10:23:29PM -0400, Jason Wang wrote:
Vhost log dirty pages directly to a userspace bitmap through GUP and
kmap_atomic() since kernel doesn't have a set_bit_to_user()
helper. This will cause issues for the arch that has virtua
On Mon, May 06, 2019 at 10:23:29PM -0400, Jason Wang wrote:
> Vhost log dirty pages directly to a userspace bitmap through GUP and
> kmap_atomic() since kernel doesn't have a set_bit_to_user()
> helper. This will cause issues for the arch that has virtually tagged
> caches. The way to fix is to kee
On 2019/5/7 下午11:47, Christoph Hellwig wrote:
> On Mon, May 06, 2019 at 10:23:29PM -0400, Jason Wang wrote:
>> Note: there're archs (few non popular ones) that don't implement
>> futex helper, we can't log dirty pages. We can fix them on top or
>> simply disable LOG_ALL features of vhost.
>
> That
On Tue, Apr 30, 2019 at 08:13:54PM +0300, Yuval Shaia wrote:
> On Mon, Apr 22, 2019 at 01:45:27PM -0300, Jason Gunthorpe wrote:
> > On Fri, Apr 19, 2019 at 01:16:06PM +0200, Hannes Reinecke wrote:
> > > On 4/15/19 12:35 PM, Yuval Shaia wrote:
> > > > On Thu, Apr 11, 2019 at 07:02:15PM +0200, Cornel
On Tue, May 07, 2019 at 08:37:01AM -0700, Dan Williams wrote:
> On Thu, Apr 25, 2019 at 10:03 PM Pankaj Gupta wrote:
> >
> > Dont support 'MAP_SYNC' with non-DAX files and DAX files
> > with asynchronous dax_device. Virtio pmem provides
> > asynchronous host page cache flush mechanism. We don't
>
On Mon, May 06, 2019 at 10:23:29PM -0400, Jason Wang wrote:
> Note: there're archs (few non popular ones) that don't implement
> futex helper, we can't log dirty pages. We can fix them on top or
> simply disable LOG_ALL features of vhost.
That means vhost now has to depend on HAVE_FUTEX_CMPXCHG to
On Thu, Apr 25, 2019 at 10:02 PM Pankaj Gupta wrote:
>
> This patch adds 'DAXDEV_SYNC' flag which is set
> for nd_region doing synchronous flush. This later
> is used to disable MAP_SYNC functionality for
> ext4 & xfs filesystem for devices don't support
> synchronous flush.
>
> Signed-off-by: Pan
On Thu, Apr 25, 2019 at 10:03 PM Pankaj Gupta wrote:
>
> Dont support 'MAP_SYNC' with non-DAX files and DAX files
> with asynchronous dax_device. Virtio pmem provides
> asynchronous host page cache flush mechanism. We don't
> support 'MAP_SYNC' with virtio pmem and xfs.
>
> Signed-off-by: Pankaj G
Hi Pankaj,
Some minor file placement comments below.
On Thu, Apr 25, 2019 at 10:02 PM Pankaj Gupta wrote:
>
> This patch adds virtio-pmem driver for KVM guest.
>
> Guest reads the persistent memory range information from
> Qemu over VIRTIO and registers it on nvdimm_bus. It also
> creates a nd_r
On 05.05.19 13:15, Cornelia Huck wrote:
> On Sat, 4 May 2019 16:03:40 +0200
> Halil Pasic wrote:
>
>> On Fri, 3 May 2019 16:04:48 -0400
>> "Michael S. Tsirkin" wrote:
>>
>>> On Fri, May 03, 2019 at 11:17:24AM +0200, Cornelia Huck wrote:
On Fri, 26 Apr 2019 20:32:36 +0200
Halil Pas
Hi Jorge,
On Mon, May 06, 2019 at 01:19:55PM -0700, Jorge Moreira Broche wrote:
> > On Wed, May 01, 2019 at 03:08:31PM -0400, Stefan Hajnoczi wrote:
> > > On Tue, Apr 30, 2019 at 05:30:01PM -0700, Jorge E. Moreira wrote:
> > > > Avoid a race in which static variables in net/vmw_vsock/af_vsock.c ar
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