On 2019-02-07 at 22:00:46 -0500, Michael S. Tsirkin wrote:
> On Fri, Feb 08, 2019 at 06:11:23PM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > Signed-off-by: Zhang Yi
> > ---
> > docs/nvdimm.txt | 25 ++---
> > qemu-options.hx | 5 +
> > 2 files changed, 27
On 2019-02-07 at 09:30:12 -0500, Michael S. Tsirkin wrote:
> On Thu, Feb 07, 2019 at 11:16:05PM +0800, Yi Zhang wrote:
> > On 2019-02-06 at 13:29:37 -0500, Michael S. Tsirkin wrote:
> > > On Thu, Feb 07, 2019 at 01:27:29AM +0800, Zhang, Yi wrote:
> > > > From: Zhang Y
On 2019-02-06 at 13:29:37 -0500, Michael S. Tsirkin wrote:
> On Thu, Feb 07, 2019 at 01:27:29AM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > Signed-off-by: Zhang Yi
> > ---
> > docs/nvdimm.txt | 25 ++---
> > qemu-options.hx | 4
> > 2 files changed, 26
On 2019-01-29 at 09:09:54 -0500, Michael S. Tsirkin wrote:
> On Tue, Jan 29, 2019 at 10:49:18PM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > Signed-off-by: Zhang Yi
> > ---
> > docs/nvdimm.txt | 29 -
> > qemu-options.hx | 4
> > 2 files changed, 32
On 2019-01-29 at 01:55:06 -0500, Pankaj Gupta wrote:
>
> >
> > From: Zhang Yi
> >
> > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > MAP_SYNC flag in addition which can ensure file system metadata
> > synced in each guest writes to the backend file, without other QEMU
On 2019-01-29 at 08:50:46 -0500, Michael S. Tsirkin wrote:
> On Tue, Jan 29, 2019 at 10:49:09PM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > MAP_SYNC flag in addition which can ensure file system metadata
> > synced in
> > On Thu, Jan 24, 2019 at 02:59:26PM -0200, Eduardo Habkost wrote:
> > > > > On Thu, Jan 24, 2019 at 07:21:03PM +0800, Yi Zhang wrote:
> > > > > > On 2019-01-23 at 12:50:50 -0200, Eduardo Habkost wrote:
> > > > > > > On We
On 2019-01-23 at 10:04:01 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 23, 2019 at 10:59:45AM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > MAP_SYNC flag in addition which can ensure file system metadata
> > synced in
On 2019-01-23 at 12:50:50 -0200, Eduardo Habkost wrote:
> On Wed, Jan 23, 2019 at 11:00:02AM +0800, Zhang, Yi wrote:
> > From: Zhang Yi
> >
> > Signed-off-by: Zhang Yi
> > ---
> > docs/nvdimm.txt | 29 -
> > qemu-options.hx | 4
> > 2 files changed, 32
On 2019-01-22 at 22:53:36 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote:
> > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote:
> > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote:
> > > > From: &quo
On 2019-01-22 at 23:02:22 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 23, 2019 at 11:10:07AM +0800, Yi Zhang wrote:
> > On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote:
> > > On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote:
> > > > From: &quo
On 2019-01-22 at 22:01:58 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 23, 2019 at 10:59:27AM +0800, Zhang, Yi wrote:
> > From: "Zhang,Yi"
> >
> > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to
> > guarantee the write persistence to mmap'ed files supporting DAX (e.g.,
> >
On 2019-01-21 at 15:24:17 -0500, Michael S. Tsirkin wrote:
> On Mon, Jan 21, 2019 at 02:35:57PM +0800, Yi Zhang wrote:
> > On 2019-01-16 at 10:55:33 -0500, Michael S. Tsirkin wrote:
> > > On Wed, Jan 16, 2019 at 04:10:29PM +0800, Zhang Yi wrote:
> > > > Signed-off-by
On 2019-01-21 at 12:44:00 -0200, Eduardo Habkost wrote:
> On Mon, Jan 21, 2019 at 01:15:36PM +0800, Yi Zhang wrote:
> > On 2019-01-18 at 16:11:47 -0200, Eduardo Habkost wrote:
> [...]
> > > Anyway, I see a more fundamental problem in each version of this
> > > patch
On 2019-01-21 at 02:21:39 -0500, Pankaj Gupta wrote:
>
> > > > ---
> > > > docs/nvdimm.txt | 21 -
> > > > qemu-options.hx | 4
> > > > 2 files changed, 24 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/docs/nvdimm.txt b/docs/nvdimm.txt
> > > > index
On 2019-01-16 at 10:55:33 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 16, 2019 at 04:10:29PM +0800, Zhang Yi wrote:
> > Signed-off-by: Zhang Yi
> > Signed-off-by: Michael S. Tsirkin
>
> OK so if you apply this patch, do you get
> any sparse warning at all?
Didn't get any sparse warning.
>
>
On 2019-01-16 at 10:40:23 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 16, 2019 at 04:11:16PM +0800, Zhang Yi wrote:
> > Signed-off-by: Zhang Yi
> > ---
> > docs/nvdimm.txt | 21 -
> > qemu-options.hx | 4
> > 2 files changed, 24 insertions(+), 1 deletion(-)
> >
> >
On 2019-01-18 at 16:11:47 -0200, Eduardo Habkost wrote:
> On Wed, Jan 16, 2019 at 10:58:44AM -0500, Michael S. Tsirkin wrote:
> > On Wed, Jan 16, 2019 at 04:10:58PM +0800, Zhang Yi wrote:
> > > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > > MAP_SYNC flag in addition
On 2019-01-15 at 22:51:09 +, Kamal Kakri via Qemu-devel wrote:
> My devdax device is 2MB aligned so I dont think this is alignment related.#
> ndctl list -X -n namespace0.0
> [
> {
> "dev":"namespace0.0",
> "mode":"devdax",
> "map":"dev",
> "size":16909336576,
>
On 2019-01-16 at 09:12:33 +0800, Wei Yang wrote:
> On Tue, Jan 15, 2019 at 08:13:27PM +, Kamal Kakri via Qemu-devel wrote:
> >Hi,
> >
> >I have a namespace (backed by real nvdimm h/w) configured in devdax mode:
> ># ndctl list -N -n namespace0.0
> >[
> > {
> > "dev":"namespace0.0",
> >
On 2019-01-14 at 22:31:45 -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 02, 2019 at 01:26:34PM +0800, Zhang Yi wrote:
> > This option controls will mmap the memory backend file with MAP_SYNC flag,
> > which can ensure filesystem metadata consistent even after a system crash
> > or power failure,
On 2019-01-14 at 17:39:38 -0200, Eduardo Habkost wrote:
> On Wed, Jan 02, 2019 at 01:26:34PM +0800, Zhang Yi wrote:
> > This option controls will mmap the memory backend file with MAP_SYNC flag,
> > which can ensure filesystem metadata consistent even after a system crash
> > or power failure, if
On 2019-01-14 at 17:07:02 -0200, Eduardo Habkost wrote:
> On Wed, Jan 02, 2019 at 01:26:15PM +0800, Zhang Yi wrote:
> > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > MAP_SYNC flag in addition which can ensure file system metadata
> > synced in each guest writes to the
On 2019-01-14 at 14:04:25 -0500, Michael S. Tsirkin wrote:
> On Mon, Jan 14, 2019 at 04:50:36PM -0200, Eduardo Habkost wrote:
> > On Wed, Jan 02, 2019 at 01:26:06PM +0800, Zhang Yi wrote:
> > > As more flag parameters besides the existing 'shared' are going to be
> > > added to qemu_ram_mmap(),
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 2018-12-1
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 2018-12-1
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:
> > > > >
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 memor
On 2018-12-18 at 08:52:09 -0500, Michael S. Tsirkin wrote:
> On Tue, Dec 18, 2018 at 04:17:12PM +0800, Zhang Yi wrote:
> > When a file supporting DAX is used as vNVDIMM backend, mmap it with
> > MAP_SYNC flag in addition can guarantee the persistence of guest write
> > to the backend file without
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 2018-12-17 at 10:27:50 -0500, Michael S. Tsirkin wrote:
> On Mon, Dec 17, 2018 at 01:53:54PM +0800, Yi Zhang wrote:
> > On 2018-12-12 at 10:06:13 -0500, Michael S. Tsirkin wrote:
> > > On Wed, Dec 12, 2018 at 04:11:44PM +0800, Zhang Yi wrote:
> > > > Linux 4
On 2018-12-12 at 10:06:13 -0500, Michael S. Tsirkin wrote:
> On Wed, Dec 12, 2018 at 04:11:44PM +0800, Zhang Yi wrote:
> > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to
> > guarantee the write persistence to mmap'ed files supporting DAX (e.g.,
> > files on ext4/xfs file
On 2018-12-05 at 09:59:23 +, Stefan Hajnoczi wrote:
> On Mon, Nov 05, 2018 at 04:07:50PM +0800, Zhang Yi wrote:
> > Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to
> > guarantee the write persistence to mmap'ed files supporting DAX (e.g.,
> > files on ext4/xfs file system
On 2018-11-26 at 03:46:50 -0500, Pankaj Gupta wrote:
>
> >
> > This option controls whether QEMU mmap(2) the memory backend file with
> > MAP_SYNC flag, which can fully guarantee the guest write persistence
>
> Not sure 'persistence' is the right word here. I think it should be
> something like
On 2018-11-29 at 04:11:11 -0500, Pankaj Gupta wrote:
>
> >
> > As more flag parameters besides the existing 'share' are going to be
> > added to qemu_ram_alloc_from_{file,fd}(), let's swith 'share' to a
> > 'flags' parameters in advance, so as to ease the further additions.
> >
> >
Ping for any review/comments
Thanks
Yi
On 2018-11-20 at 15:47:58 +0800, Zhang Yi wrote:
> Linux 4.15 introduces a new mmap flag MAP_SYNC, which can be used to
> guarantee the write persistence to mmap'ed files supporting DAX (e.g.,
> files on ext4/xfs file system mounted with '-o dax').
>
> A
On 2018-09-21 at 15:13:32 +0400, Marc-André Lureau wrote:
Thanks for the improvemnet.
Reviewed-by: Zhang Yi
> Put into use the macros proposed in the previous Object documentation change.
>
> Signed-off-by: Marc-André Lureau
> ---
> include/hw/mem/nvdimm.h | 1 +
> hw/acpi/ich9.c |
On 2018-09-19 at 14:29:57 +0400, Marc-André Lureau wrote:
> Hi
>
> On Tue, Sep 18, 2018 at 7:49 PM Dr. David Alan Gilbert
> wrote:
> >
> > * Marc-André Lureau (marcandre.lur...@gmail.com) wrote:
> > > Hi
> > >
> > > On Tue, Sep 11, 2018 at 6:19 PM Laszlo Ersek wrote:
> > > >
> > > > +Alex, due
On 2018-08-24 at 20:14:37 +0300, Michael S. Tsirkin wrote:
> On Fri, Aug 24, 2018 at 05:57:06PM +0100, Peter Maydell wrote:
> > On 24 August 2018 at 17:53, Michael S. Tsirkin wrote:
> > > On Fri, Aug 24, 2018 at 04:13:18PM +0100, Peter Maydell wrote:
> > >> object_get_canonical_path_component()
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