Daniel P. Berrangé writes:
> On Wed, Nov 01, 2023 at 09:16:33AM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> >
>> > So the problem with add-fd is that when requesting a FD, the monitor
>> > code masks flags with O_ACCMODE. What if we extended it such that
>> > the monitor ma
On Wed, Nov 01, 2023 at 09:16:33AM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> >
> > So the problem with add-fd is that when requesting a FD, the monitor
> > code masks flags with O_ACCMODE. What if we extended it such that
> > the monitor masked with O_ACCMODE | O_DIRECT.
> >
>
Daniel P. Berrangé writes:
> On Tue, Oct 31, 2023 at 04:05:46PM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Tue, Oct 31, 2023 at 12:52:41PM -0300, Fabiano Rosas wrote:
>> >> Daniel P. Berrangé writes:
>> >> >
>> >> > I guess I'm not seeing the problem still. A single
On Tue, Oct 31, 2023 at 04:05:46PM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Tue, Oct 31, 2023 at 12:52:41PM -0300, Fabiano Rosas wrote:
> >> Daniel P. Berrangé writes:
> >> >
> >> > I guess I'm not seeing the problem still. A single FD is passed across
> >> > from libvi
Daniel P. Berrangé writes:
> On Tue, Oct 31, 2023 at 12:52:41PM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>> >
>> > I guess I'm not seeing the problem still. A single FD is passed across
>> > from libvirt, but QEMU is free to turn that into *many* FDs for its
>> > internal use,
On Tue, Oct 31, 2023 at 12:52:41PM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
> >
> > I guess I'm not seeing the problem still. A single FD is passed across
> > from libvirt, but QEMU is free to turn that into *many* FDs for its
> > internal use, using dup() and then setting O_DIREC
Daniel P. Berrangé writes:
> On Tue, Oct 31, 2023 at 11:33:24AM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Tue, Oct 31, 2023 at 10:05:56AM -0300, Fabiano Rosas wrote:
>> >> Daniel P. Berrangé writes:
>> >>
>> >> > On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Ros
On Tue, Oct 31, 2023 at 11:33:24AM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Tue, Oct 31, 2023 at 10:05:56AM -0300, Fabiano Rosas wrote:
> >> Daniel P. Berrangé writes:
> >>
> >> > On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Rosas wrote:
> >> >> I could use some ad
Daniel P. Berrangé writes:
> On Tue, Oct 31, 2023 at 10:05:56AM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Rosas wrote:
>> >> I could use some advice on how to solve this situation. The fdset code
>> >> at monitor/fds.c an
On Tue, Oct 31, 2023 at 10:05:56AM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Rosas wrote:
> >> I could use some advice on how to solve this situation. The fdset code
> >> at monitor/fds.c and the add-fd command don't seem to b
Daniel P. Berrangé writes:
> On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Rosas wrote:
>> I could use some advice on how to solve this situation. The fdset code
>> at monitor/fds.c and the add-fd command don't seem to be usable outside
>> the original use-case of passing fds with different o
On Mon, Oct 30, 2023 at 07:51:34PM -0300, Fabiano Rosas wrote:
> I could use some advice on how to solve this situation. The fdset code
> at monitor/fds.c and the add-fd command don't seem to be usable outside
> the original use-case of passing fds with different open flags.
>
> There are several
Daniel P. Berrangé writes:
> On Wed, Oct 25, 2023 at 11:32:00AM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
>> >> Markus Armbruster writes:
>> >>
>> >> > Fabiano Rosas writes:
>> >> >
>> >> >> Add the direct
Daniel P. Berrangé writes:
> On Wed, Oct 25, 2023 at 02:30:01PM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Wed, Oct 25, 2023 at 11:32:00AM -0300, Fabiano Rosas wrote:
>> >> Daniel P. Berrangé writes:
>> >>
>> >> > On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Ros
On Wed, Oct 25, 2023 at 02:30:01PM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Wed, Oct 25, 2023 at 11:32:00AM -0300, Fabiano Rosas wrote:
> >> Daniel P. Berrangé writes:
> >>
> >> > On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
> >> >> Markus Armbruster
Daniel P. Berrangé writes:
> On Wed, Oct 25, 2023 at 11:32:00AM -0300, Fabiano Rosas wrote:
>> Daniel P. Berrangé writes:
>>
>> > On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
>> >> Markus Armbruster writes:
>> >>
>> >> > Fabiano Rosas writes:
>> >> >
>> >> >> Add the direct
On Wed, Oct 25, 2023 at 11:48:08AM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Mon, Oct 23, 2023 at 05:36:07PM -0300, Fabiano Rosas wrote:
> >> Add the direct-io migration parameter that tells the migration code to
> >> use O_DIRECT when opening the migration stream file whe
Daniel P. Berrangé writes:
> On Mon, Oct 23, 2023 at 05:36:07PM -0300, Fabiano Rosas wrote:
>> Add the direct-io migration parameter that tells the migration code to
>> use O_DIRECT when opening the migration stream file whenever possible.
>>
>> This is currently only used for the secondary chan
On Wed, Oct 25, 2023 at 11:32:00AM -0300, Fabiano Rosas wrote:
> Daniel P. Berrangé writes:
>
> > On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
> >> Markus Armbruster writes:
> >>
> >> > Fabiano Rosas writes:
> >> >
> >> >> Add the direct-io migration parameter that tells the
Daniel P. Berrangé writes:
> On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
>> Markus Armbruster writes:
>>
>> > Fabiano Rosas writes:
>> >
>> >> Add the direct-io migration parameter that tells the migration code to
>> >> use O_DIRECT when opening the migration stream file whe
On Mon, Oct 23, 2023 at 05:36:07PM -0300, Fabiano Rosas wrote:
> Add the direct-io migration parameter that tells the migration code to
> use O_DIRECT when opening the migration stream file whenever possible.
>
> This is currently only used for the secondary channels of fixed-ram
> migration, whic
On Tue, Oct 24, 2023 at 04:32:10PM -0300, Fabiano Rosas wrote:
> Markus Armbruster writes:
>
> > Fabiano Rosas writes:
> >
> >> Add the direct-io migration parameter that tells the migration code to
> >> use O_DIRECT when opening the migration stream file whenever possible.
> >>
> >> This is cur
Fabiano Rosas writes:
> Markus Armbruster writes:
>
>> Fabiano Rosas writes:
>>
>>> Add the direct-io migration parameter that tells the migration code to
>>> use O_DIRECT when opening the migration stream file whenever possible.
>>>
>>> This is currently only used for the secondary channels of
Markus Armbruster writes:
> Fabiano Rosas writes:
>
>> Add the direct-io migration parameter that tells the migration code to
>> use O_DIRECT when opening the migration stream file whenever possible.
>>
>> This is currently only used for the secondary channels of fixed-ram
>> migration, which ca
Daniel P. Berrangé writes:
> On Mon, Oct 23, 2023 at 05:36:07PM -0300, Fabiano Rosas wrote:
>> Add the direct-io migration parameter that tells the migration code to
>> use O_DIRECT when opening the migration stream file whenever possible.
>>
>> This is currently only used for the secondary chan
On Mon, Oct 23, 2023 at 05:36:07PM -0300, Fabiano Rosas wrote:
> Add the direct-io migration parameter that tells the migration code to
> use O_DIRECT when opening the migration stream file whenever possible.
>
> This is currently only used for the secondary channels of fixed-ram
> migration, whic
Fabiano Rosas writes:
> Add the direct-io migration parameter that tells the migration code to
> use O_DIRECT when opening the migration stream file whenever possible.
>
> This is currently only used for the secondary channels of fixed-ram
> migration, which can guarantee that writes are page ali
Add the direct-io migration parameter that tells the migration code to
use O_DIRECT when opening the migration stream file whenever possible.
This is currently only used for the secondary channels of fixed-ram
migration, which can guarantee that writes are page aligned.
However the parameter coul
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