On Mon, Sep 18, 2023 at 8:28 PM Jonathan Cameron
wrote:
>
> On Mon, 18 Sep 2023 13:16:01 +1000
> Alistair Francis wrote:
>
> > On Sat, Sep 16, 2023 at 1:19 AM Jonathan Cameron
> > wrote:
> > >
> > > On Fri, 15 Sep 2023 21:27:22 +1000
> > > Alistair Francis wrote:
> > >
> > > > From: Huai-Cheng
On 21/09/2023 02:31, Markus Armbruster wrote:
> Local variables shadowing other local variables or parameters make the
> code needlessly hard to understand. Tracked down with -Wshadow=local.
> Clean up: delete inner declarations when they are actually redundant,
> else rename variables.
>
> Sig
Eric Blake writes:
> On Wed, Sep 20, 2023 at 08:31:49PM +0200, Markus Armbruster wrote:
> ...
>> The only reliable way to prevent unintended variable name capture is
>> -Wshadow.
>>
>> One blocker for enabling it is shadowing hiding in function-like
>> macros like
>>
>> qdict_put(dict, "na
On 9/20/23 19:55, Stefan Hajnoczi wrote:
On Wed, 20 Sept 2023 at 05:22, Denis V. Lunev wrote:
The following changes since commit 4907644841e3200aea6475c0f72d3d987e9f3d93:
Merge tag 'mem-2023-09-19' of https://github.com/davidhildenbrand/qemu into
staging (2023-09-19 13:22:19 -0400)
are av
On Wed, Sep 20, 2023 at 08:31:49PM +0200, Markus Armbruster wrote:
...
> The only reliable way to prevent unintended variable name capture is
> -Wshadow.
>
> One blocker for enabling it is shadowing hiding in function-like
> macros like
>
> qdict_put(dict, "name", qobject_ref(...))
>
> qdic
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: rename both the pair of parameters and the pair of local
variables. While there, move the local variables to function scope.
Suggested-by: Kevin
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: delete inner declarations when they are actually redundant,
else rename variables.
Signed-off-by: Markus Armbruster
Reviewed-by: Stefan Hajnoczi
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: delete inner declarations when they are actually redundant,
else rename variables.
Signed-off-by: Markus Armbruster
Reviewed-by: Peter Maydell
-
qemu_rdma_save_page() reports polling error with error_report(), then
succeeds anyway. This is because the variable holding the polling
status *shadows* the variable the function returns. The latter
remains zero.
Broken since day one, and duplicated more recently.
Fixes: 2da776db4846 (rdma: cor
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: delete inner declarations when they are actually redundant,
else rename variables.
Signed-off-by: Markus Armbruster
Reviewed-by: Peter Xu
---
m
Variables declared in macros can shadow other variables. Much of the
time, this is harmless, e.g.:
#define _FDT(exp) \
do { \
int ret = (exp);
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Tracked down with -Wshadow=local.
Clean up: delete inner declarations when they are actually redundant,
else rename variables.
Signed-off-by: Markus Armbruster
Reviewed-by: Stefan Hajnoczi
Local variables shadowing other local variables or parameters make the
code needlessly hard to understand. Bugs love to hide in such code.
Evidence: PATCH 1.
Enabling -Wshadow would prevent bugs like this one. But we'd have to
clean up all the offenders first. We got a lot of them.
Enabling -W
On Wed, 20 Sept 2023 at 05:22, Denis V. Lunev wrote:
>
> The following changes since commit 4907644841e3200aea6475c0f72d3d987e9f3d93:
>
> Merge tag 'mem-2023-09-19' of https://github.com/davidhildenbrand/qemu into
> staging (2023-09-19 13:22:19 -0400)
>
> are available in the Git repository at:
The following changes since commit 4907644841e3200aea6475c0f72d3d987e9f3d93:
Merge tag 'mem-2023-09-19' of https://github.com/davidhildenbrand/qemu into
staging (2023-09-19 13:22:19 -0400)
are available in the Git repository at:
https://repo.or.cz/qemu/kevin.git tags/for-upstream
for you t
On Wed, Sep 20, 2023 at 06:31:25AM -0700, Klaus Jensen wrote:
> On Sep 20 07:54, Corey Minyard wrote:
> > On Wed, Sep 20, 2023 at 12:48:03PM +0100, Jonathan Cameron via wrote:
> > > On Thu, 14 Sep 2023 11:53:40 +0200
> > > Klaus Jensen wrote:
> > >
> > > > This adds a generic MCTP endpoint model
Kevin Wolf writes:
> Am 19.09.2023 um 07:48 hat Markus Armbruster geschrieben:
>> Kevin Wolf writes:
>>
>> > Am 31.08.2023 um 15:25 hat Markus Armbruster geschrieben:
>> >> Local variables shadowing other local variables or parameters make the
>> >> code needlessly hard to understand. Tracked
On Wed, Sep 20, 2023 at 12:48:03PM +0100, Jonathan Cameron via wrote:
> On Thu, 14 Sep 2023 11:53:40 +0200
> Klaus Jensen wrote:
>
> > This adds a generic MCTP endpoint model that other devices may derive
> > from.
> >
> > Also included is a very basic implementation of an NVMe-MI device,
> > su
On Sep 20 07:54, Corey Minyard wrote:
> On Wed, Sep 20, 2023 at 12:48:03PM +0100, Jonathan Cameron via wrote:
> > On Thu, 14 Sep 2023 11:53:40 +0200
> > Klaus Jensen wrote:
> >
> > > This adds a generic MCTP endpoint model that other devices may derive
> > > from.
> > >
> > > Also included is a
On Thu, 14 Sep 2023 11:53:40 +0200
Klaus Jensen wrote:
> This adds a generic MCTP endpoint model that other devices may derive
> from.
>
> Also included is a very basic implementation of an NVMe-MI device,
> supporting only a small subset of the required commands.
>
> Since this all relies on i
* Discarding with backing stores is not supported by the format.
* There is no buffering/queueing of the discard operation.
* Only operations aligned to the cluster are supported.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 46
This patch contains test which minimally tests discard and new cluster
allocation logic.
The following checks are added:
* write 2 clusters, discard the first allocated
* write another cluster, check that the hole is filled
* write 2 clusters, discard the first allocated, write 1 cluster at
non-
The access to the bitmap is not optimized completely.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 51 ---
1 file changed, 39 insertions(+), 12 deletions(-)
diff --git a/block/parallels.c b/block/parallels.c
ind
More conditions follows thus the check should be more scalable.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 21 ++---
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/block/parallels.c b/block/parallels.c
index bd26c8db63..a
The test is quite similar with the original one for duplicated clusters.
There is the only difference in the operation which should fix the
image.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
tests/qemu-iotests/tests/parallels-checks | 36 +++
tests/qemu-i
We should extend the bitmap if the file is extended and set the bit in
the image used bitmap once the cluster is allocated. Sanity check at
that moment also looks like a good idea.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 14 ++
1 file chan
At the beginning of the function we can return immediately until we
really allocate s->header.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 14 +-
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/block/parallels.c b/block/parallels
If the operation is failed, we need to check image consistency if the
problem is not about memory allocation.
Bitmap adjustments in allocate_cluster are not performed yet.
They worth to be separate. This was proven useful during debug of this
series. Kept as is for future bissecting.
It should be
The zero flag is missed in the Parallels format specification. We can
resort to discard if we have no backing file.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/block/parallels.c b/block/par
We do not need to perform any deallocation/cleanup if wrong format is
detected.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/parallels.c b/block/parallels.c
index ae006e7fc7..12f38cf
Old code is ugly and contains tabulations. There are no functional
changes in this patch.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 36 +++-
1 file changed, 19 insertions(+), 17 deletions(-)
diff --git a/block/parallels.
We should free opts allocated through qemu_opts_create() at the end.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/parallels.c b/block/parallels.c
index 428f72de1c..af7be427c9 100644
--- a/block/parall
Once we have repaired data_off field in the header we should update
s->data_start which is calculated on the base of it.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/parallels.c b/block/parallels.c
in
Original check is broken as supposed reading from 2 different clusters
results in read from the same file offset twice. This is definitely
wrong.
We should be sure that
* the content of both clusters is correct after repair
* clusters are at the different offsets after repair
In order to check the
Parallels driver indeed support Parallels Dirty Bitmap Feature in
read-only mode. The patch adds bdrv_supports_persistent_dirty_bitmap()
callback which always return 1 to indicate that.
This will allow to copy CBT from Parallels image with qemu-img.
Note: read-write support is signalled through
b
This patch creates above mentioned helper and moves its usage to the
beginning of parallels_open(). This simplifies parallels_open() a bit.
The patch also ensures that we store prealloc_size on block driver state
always in sectors. This makes code cleaner and avoids wrong opinion at
the assignment
Replace 'space' representing the amount of data to preallocate with
'bytes'.
Rationale:
* 'space' at each place is converted to bytes
* the unit is more close to the variable name
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 13 +
1 file chang
This functionality is used twice already and next patch will add more
code with it.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 34 +-
1 file changed, 25 insertions(+), 9 deletions(-)
diff --git a/block/parallels.c b/block
Since
commit cfce1091d55322789582480798a891cbaf66924e
Author: Alexander Ivanov
Date: Tue Jul 18 12:44:29 2023 +0200
parallels: Image repairing in parallels_open()
there is a potential pit fall with calling
qemu-io -c "read"
The image is opened in read-write mode and thus coul
This would be useful in the next patch in allocate_clusters(). This
change would not imply serious performance drawbacks as usually image
is full of data or are at the end of the bitmap.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
block/parallels.c | 18 ++
1
The following changes since commit 4907644841e3200aea6475c0f72d3d987e9f3d93:
Merge tag 'mem-2023-09-19' of https://github.com/davidhildenbrand/qemu into
staging (2023-09-19 13:22:19 -0400)
are available in the Git repository at:
https://src.openvz.org/scm/~den/qemu.git tags/pull-parallels-2
This patch contains test which minimally tests write-zeroes on top of
working discard.
The following checks are added:
* write 2 clusters, write-zero to the first allocated cluster
* write 2 cluster, write-zero to the half the first allocated cluster
Signed-off-by: Denis V. Lunev
Reviewed-by: Al
We have only check through self-repair and that proven to be not enough.
Signed-off-by: Denis V. Lunev
Reviewed-by: Alexander Ivanov
---
tests/qemu-iotests/tests/parallels-checks | 17 +
tests/qemu-iotests/tests/parallels-checks.out | 18 ++
2 files changed,
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