On Mon, Dec 24, 2018 at 04:11:43PM +0800, Yi Zhang wrote:
> On 2018-12-21 at 11:36:07 -0500, Michael S. Tsirkin wrote:
> > On Fri, Dec 21, 2018 at 11:18:18AM +0800, Yi Zhang wrote:
> > > On 2018-12-20 at 09:06:41 -0500, Michael S. Tsirkin wrote:
> > > > On Thu, Dec 20, 2018 at 01:37:40PM +0800, Yi
On 2018-12-21 at 11:36:07 -0500, Michael S. Tsirkin wrote:
> On Fri, Dec 21, 2018 at 11:18:18AM +0800, Yi Zhang wrote:
> > On 2018-12-20 at 09:06:41 -0500, Michael S. Tsirkin wrote:
> > > On Thu, Dec 20, 2018 at 01:37:40PM +0800, Yi Zhang wrote:
> > > > On 2018-12-19 at 22:42:07 -0500, Michael S.
On Fri, Dec 21, 2018 at 11:18:18AM +0800, Yi Zhang wrote:
> On 2018-12-20 at 09:06:41 -0500, Michael S. Tsirkin wrote:
> > On Thu, Dec 20, 2018 at 01:37:40PM +0800, Yi Zhang wrote:
> > > On 2018-12-19 at 22:42:07 -0500, Michael S. Tsirkin wrote:
> > > > On Thu, Dec 20, 2018 at 11:03:12AM +0800, Yi
On 2018-12-20 at 09:06:41 -0500, Michael S. Tsirkin wrote:
> On Thu, Dec 20, 2018 at 01:37:40PM +0800, Yi Zhang wrote:
> > On 2018-12-19 at 22:42:07 -0500, Michael S. Tsirkin wrote:
> > > On Thu, Dec 20, 2018 at 11:03:12AM +0800, Yi Zhang wrote:
> > > > On 2018-12-19 at 10:59:10 -0500, Michael S.
On Thu, Dec 20, 2018 at 01:37:40PM +0800, Yi Zhang wrote:
> On 2018-12-19 at 22:42:07 -0500, Michael S. Tsirkin wrote:
> > On Thu, Dec 20, 2018 at 11:03:12AM +0800, Yi Zhang wrote:
> > > On 2018-12-19 at 10:59:10 -0500, Michael S. Tsirkin wrote:
> > > > On Wed, Dec 19, 2018 at 05:10:18PM +0800, Yi
On 2018-12-19 at 22:42:07 -0500, Michael S. Tsirkin wrote:
> On Thu, Dec 20, 2018 at 11:03:12AM +0800, Yi Zhang wrote:
> > On 2018-12-19 at 10:59:10 -0500, Michael S. Tsirkin wrote:
> > > On Wed, Dec 19, 2018 at 05:10:18PM +0800, Yi Zhang wrote:
> > > > > > +
> > > > > > + - 'sync' option of
On Thu, Dec 20, 2018 at 11:03:12AM +0800, Yi Zhang wrote:
> On 2018-12-19 at 10:59:10 -0500, Michael S. Tsirkin wrote:
> > On Wed, Dec 19, 2018 at 05:10:18PM +0800, Yi Zhang wrote:
> > > > > +
> > > > > + - 'sync' option of memory-backend-file is not 'off', and
> > > > > +
> > > > > + - 'share'
On 2018-12-19 at 10:59:10 -0500, Michael S. Tsirkin wrote:
> On Wed, Dec 19, 2018 at 05:10:18PM +0800, Yi Zhang wrote:
> > > > +
> > > > + - 'sync' option of memory-backend-file is not 'off', and
> > > > +
> > > > + - 'share' option of memory-backend-file is 'on'.
> > > > +
> > > > + - 'pmem'
On Wed, Dec 19, 2018 at 05:10:18PM +0800, Yi Zhang wrote:
> > > +
> > > + - 'sync' option of memory-backend-file is not 'off', and
> > > +
> > > + - 'share' option of memory-backend-file is 'on'.
> > > +
> > > + - 'pmem' option of memory-backend-file is 'on'
> > > +
> >
> > Wait isn't this what
On 2018-12-18 at 09:18:50 -0500, Michael S. Tsirkin wrote:
> On Tue, Dec 18, 2018 at 04:17:39PM +0800, Zhang Yi wrote:
> > This option controls whether QEMU mmap(2)
>
> will mmap
>
> > the memory backend file with
> > MAP_SYNC flag, which could consistent filesystem metadata
>
> I'm not sure
On Tue, Dec 18, 2018 at 04:17:39PM +0800, Zhang Yi wrote:
> This option controls whether QEMU mmap(2)
will mmap
> the memory backend file with
> MAP_SYNC flag, which could consistent filesystem metadata
I'm not sure what does "which could consistent" above mean.
> for each guest
> write, if
This option controls whether QEMU mmap(2) the memory backend file with
MAP_SYNC flag, which could consistent filesystem metadata for each guest
write, if MAP_SYNC flag is supported by the host kernel(Linux kernel 4.15
and later) and the backend is a file supporting DAX (e.g., file on ext4/xfs
file
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