On Tue, Nov 29, 2022 at 05:18:58AM +, Raphael Norwitz wrote:
> > On Nov 28, 2022, at 11:41 AM, Alex Bennée wrote:
> >
> > ..and use for both virtio-user-blk and virtio-user-gpio. This avoids
> > the circular close by deferring shutdown due to disconnection until a
> > later point.
> On Nov 28, 2022, at 11:41 AM, Alex Bennée wrote:
>
> ..and use for both virtio-user-blk and virtio-user-gpio. This avoids
> the circular close by deferring shutdown due to disconnection until a
> later point. virtio-user-blk already had this mechanism in place so
The mechanism was originally
On Mon, 28 Nov 2022 16:56:39 -0400
Jason Gunthorpe wrote:
> On Mon, Nov 28, 2022 at 01:36:30PM -0700, Alex Williamson wrote:
> > On Mon, 28 Nov 2022 15:40:23 -0400
> > Jason Gunthorpe wrote:
> >
> > > On Mon, Nov 28, 2022 at 11:50:03AM -0700, Alex Williamson wrote:
> > >
> > > > There's a
On Mon, Nov 28, 2022 at 01:36:30PM -0700, Alex Williamson wrote:
> On Mon, 28 Nov 2022 15:40:23 -0400
> Jason Gunthorpe wrote:
>
> > On Mon, Nov 28, 2022 at 11:50:03AM -0700, Alex Williamson wrote:
> >
> > > There's a claim here about added complexity that I'm not really seeing.
> > > It looks
On Mon, 28 Nov 2022 15:40:23 -0400
Jason Gunthorpe wrote:
> On Mon, Nov 28, 2022 at 11:50:03AM -0700, Alex Williamson wrote:
>
> > There's a claim here about added complexity that I'm not really seeing.
> > It looks like we simply make an ioctl call here and scale our buffer
> > based on the
On Mon, Nov 28, 2022 at 11:50:03AM -0700, Alex Williamson wrote:
> There's a claim here about added complexity that I'm not really seeing.
> It looks like we simply make an ioctl call here and scale our buffer
> based on the minimum of the returned device estimate or our upper
> bound.
I'm not
On Thu, 24 Nov 2022 14:41:00 +0200
Avihai Horon wrote:
> On 20/11/2022 11:34, Avihai Horon wrote:
> >
> > On 17/11/2022 19:38, Alex Williamson wrote:
> >> External email: Use caution opening links or attachments
> >>
> >>
> >> On Thu, 17 Nov 2022 19:07:10 +0200
> >> Avihai Horon wrote:
>
From: Stefano Garzarella
Commit 02b61f38d3 ("hw/virtio: incorporate backend features in features")
properly negotiates VHOST_USER_F_PROTOCOL_FEATURES with the vhost-user
backend, but we forgot to enable vrings as specified in
docs/interop/vhost-user.rst:
If
..and use for both virtio-user-blk and virtio-user-gpio. This avoids
the circular close by deferring shutdown due to disconnection until a
later point. virtio-user-blk already had this mechanism in place so
generalise it as a vhost-user helper function and use for both blk and
gpio devices.
While
Markus Armbruster wrote:
> Cc: Fam Zheng
> Cc: Kevin Wolf
> Cc: Hanna Reitz
> Cc: qemu-block@nongnu.org
> Signed-off-by: Markus Armbruster
> Reviewed-by: Peter Maydell
> Reviewed-by: Philippe Mathieu-Daudé
Reviewed-by: Juan Quintela
goto, uninitialized variable at declaraton and can use
This function is never called in coroutine context, therefore
instead of manually creating a new coroutine, delegate it to the
block-coroutine-wrapper script, defining it as co_wrapper.
Signed-off-by: Emanuele Giuseppe Esposito
Reviewed-by: Kevin Wolf
Reviewed-by: Vladimir Sementsov-Ogievskiy
These functions end up calling bdrv_create() implemented as generated_co_wrapper
functions.
In addition, they also happen to be always called in coroutine context,
meaning all callers are coroutine_fn.
This means that the g_c_w function will enter the qemu_in_coroutine()
case and eventually
Extend the regex to cover also return type, pointers included.
This implies that the value returned by the function cannot be
a simple "int" anymore, but the custom return type.
Therefore remove poll_state->ret and instead use a per-function
custom "ret" field.
Signed-off-by: Emanuele Giuseppe
In preparation to the incoming new function specifiers,
rename g_c_w with a more meaningful name and document it.
Signed-off-by: Emanuele Giuseppe Esposito
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
docs/devel/block-coroutine-wrapper.rst | 6 +--
block/coroutines.h | 4
bdrv_can_store_new_dirty_bitmap and bdrv_remove_persistent_dirty_bitmap
check if they are running in a coroutine, directly calling the
coroutine callback if it's the case.
Except that no coroutine calls such functions, therefore that check
can be removed, and function creation can be offloaded to
Right now, we take the first parameter of the function to get the
BlockDriverState to pass to bdrv_poll_co(), that internally calls
functions that figure in which aiocontext the coroutine should run.
However, it is useless to pass a bs just to get its own AioContext,
so instead pass it directly,
We know that the string will stay around until the function
returns, and the parameter of drv->bdrv_co_create_opts is const char*,
so it must not be modified either.
Suggested-by: Kevin Wolf
Signed-off-by: Emanuele Giuseppe Esposito
Reviewed-by: Kevin Wolf
Reviewed-by: Vladimir
It is always called in coroutine_fn callbacks, therefore
it can directly call bdrv_co_create().
Rename it to bdrv_co_create_file too.
Signed-off-by: Emanuele Giuseppe Esposito
Reviewed-by: Kevin Wolf
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
include/block/block-global-state.h | 3 ++-
Call two different functions depending on whether bdrv_create
is in coroutine or not, following the same pattern as
generated_co_wrapper functions.
This allows to also call the coroutine function directly,
without using CreateCo or relying in bdrv_create().
Signed-off-by: Emanuele Giuseppe
These functions end up calling bdrv_common_block_status_above(), a
generated_co_wrapper function.
In addition, they also happen to be always called in coroutine context,
meaning all callers are coroutine_fn.
This means that the g_c_w function will enter the qemu_in_coroutine()
case and eventually
bdrv_common_block_status_above() is a g_c_w, and it is being called by
many "wrapper" functions like bdrv_is_allocated(),
bdrv_is_allocated_above() and bdrv_block_status_above().
Because we want to eventually split the coroutine from non-coroutine
case in g_c_w, create duplicate wrappers that
This new annotation starts just a function wrapper that creates
a new coroutine. It assumes the caller is not a coroutine.
It will be the default annotation to be used in the future.
This is much better as c_w_mixed, because it is clear if the caller
is a coroutine or not, and provides the
Avoid mixing bdrv_* functions with blk_*, so create blk_* counterparts
for bdrv_block_status_above and bdrv_is_allocated_above.
Note that since blk_co_block_status_above only calls the g_c_w function
bdrv_common_block_status_above and is marked as coroutine_fn, call
directly
These functions end up calling bdrv_*() implemented as generated_co_wrapper
functions.
In addition, they also happen to be always called in coroutine context,
meaning all callers are coroutine_fn.
This means that the g_c_w function will enter the qemu_in_coroutine()
case and eventually suspend (or
This is a dump of all minor coroutine-related fixes found while looking
around and testing various things in the QEMU block layer.
Patches aim to:
- add missing coroutine_fn annotation to the functions
- simplify to avoid the typical "if in coroutine: fn()
// else create_coroutine(fn)" already
Add coroutine based loop inspired by `qemu-img convert` design.
Changes compared to `qemu-img convert`:
- State for the entire image is kept in ImgChecksumState
- State for single worker coroutine is kept in ImgChecksumworker.
- "Writes" are always in-order, ensured using a queue.
- Calling
This macro is used by various commands (compare, convert, rebase) but it
is defined somewhere in the middle of the file. I'm going to use it in
the new checksum command so lets clean up a bit before that.
---
qemu-img.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git
Add simple tests computing a checksum for image with all kinds of
extents in raw and qcow2 formats.
The test can be extended later for other formats, format options (e..g
compressed qcow2), protocols (e.g. nbd), and image with a backing chain,
but I'm not sure this is really needed.
To help
Extend the test finder to find tests with format (*.out.qcow2) or cache
specific (*.out.nocache) out file. This worked before only for the
numbered tests.
---
tests/qemu-iotests/findtests.py | 10 --
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git
Since blkhash is available only via copr now, the new command is added as
optional feature, built only if blkhash-devel package is installed.
Changes since v1 (Hanna):
- Move IO_BUF_SIZE to top of the file
- Extend TestFinder to support format or cache specific out files
- Improve online help
The checksum command compute a checksum for disk image content using the
blkhash library[1]. The blkhash library is not packaged yet, but it is
available via copr[2].
Example run:
$ ./qemu-img checksum -p fedora-35.qcow2
6e5c00c995056319d52395f8d91c7f84725ae3da69ffcba4de4c7d22cff713a5
Am 25.11.2022 um 17:07 hat Vladimir Sementsov-Ogievskiy geschrieben:
> On 11/18/22 20:41, Kevin Wolf wrote:
> > In order to make sure that bdrv_replace_child_noperm() doesn't have to
> > poll any more, get rid of the bdrv_parent_drained_begin_single() call.
> >
> > This is possible now because we
Am 18.11.2022 um 18:40 hat Kevin Wolf geschrieben:
> I'm aware that exactly nobody has been looking forward to a series with
> this title, but it has to be. The way drain works means that we need to
> poll in bdrv_replace_child_noperm() and that makes things rather messy
> with Emanuele's
Am 25.11.2022 um 15:59 hat Vladimir Sementsov-Ogievskiy geschrieben:
> On 11/18/22 20:41, Kevin Wolf wrote:
> > We only need to call both the BlockDriver's callback and the parent
> > callbacks when going from undrained to drained or vice versa. A second
> > drain section doesn't make a difference
On Mon, Nov 7, 2022 at 1:41 PM Hanna Reitz wrote:
> On 30.10.22 18:38, Nir Soffer wrote:
> > On Wed, Oct 26, 2022 at 4:31 PM Hanna Reitz wrote:
> >
> > On 01.09.22 16:32, Nir Soffer wrote:
> > > Add simple tests creating an image with all kinds of extents,
> > different
> > >
On Mon, Nov 7, 2022 at 12:20 PM Hanna Reitz wrote:
> On 30.10.22 18:37, Nir Soffer wrote:
> > On Wed, Oct 26, 2022 at 4:00 PM Hanna Reitz wrote:
> >
> > On 01.09.22 16:32, Nir Soffer wrote:
> [...]
> > > ---
> > > docs/tools/qemu-img.rst | 22 +
> > > meson.build
Cc: Fam Zheng
Cc: Kevin Wolf
Cc: Hanna Reitz
Cc: qemu-block@nongnu.org
Signed-off-by: Markus Armbruster
Reviewed-by: Peter Maydell
Reviewed-by: Philippe Mathieu-Daudé
---
block/vmdk.c | 28 +++-
1 file changed, 11 insertions(+), 17 deletions(-)
diff --git
Am 25/11/2022 um 21:32 schrieb Vladimir Sementsov-Ogievskiy:
>
>> class FuncDecl:
>> - def __init__(self, return_type: str, name: str, args: str) -> None:
>> + def __init__(self, return_type: str, name: str, args: str,
>> + variant: str) -> None:
>
> I'd prefer
Am 25/11/2022 um 19:03 schrieb Vladimir Sementsov-Ogievskiy:
> On 11/25/22 16:35, Emanuele Giuseppe Esposito wrote:
>> Call two different functions depending on whether bdrv_create
>> is in coroutine or not, following the same pattern as
>> generated_co_wrapper functions.
>>
>> This allows to
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