jobs are about.
The concept of the parallel jobs with common nodes is considered vital
no more.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 97 ++
tests/qemu-iotests/030 | 51 +++-
tests/qemu-iotests/030.out
as an
intermediate solution before the QEMU permission update system has
overhauled. Then we are able to implement the API function
bdrv_remove_node() on the block generic layer.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 56
Add support for the recently introduced functions
bdrv_co_preadv_part()
and
bdrv_co_pwritev_part()
to the COR-filter driver.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 28
1 file changed, 16 insertions
Provide API for insertion a node to backing chain.
Suggested-by: Max Reitz
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block.c | 25 +
include/block/block.h | 2 ++
2 files changed, 27 insertions(+)
diff --git
The test case #310 is similar to #216 by Max Reitz. The difference is
that the test #310 involves a bottom node to the COR filter driver.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
tests/qemu-iotests/310 | 114
keeping in mind the possible issue mentioned above.
If the user does not specify the 'backing-file' parameter, QEMU will
assign it automatically.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 21 +++--
blockdev.c | 8 +---
2 files changed, 20 insertions(+), 9
Add the new member supported_read_flags to the BlockDriverState
structure. It will control the flags set for copy-on-read operations.
Make the block generic layer evaluate supported read flags before they
go to a block driver.
Suggested-by: Vladimir Sementsov-Ogievskiy
Signed-off-by: Andrey
.
08: Three patches with fixes were merged into one.
09: The search for format_name of backing file was added.
10: The flag BLK_PERM_GRAPH_MOD was removed.
Andrey Shinkevich (10):
copy-on-read: support preadv/pwritev_part functions
block: add API function to insert a node
copy-on-rea
-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 57 ++--
qapi/block-core.json | 21 ++-
2 files changed, 75 insertions(+), 3 deletions(-)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
-filter.
block: Modify the comment for the flag BDRV_REQ_PREFETCH as we are
going to use it alone and pass it to the COR-filter driver for further
processing.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 14 ++
include/block/block.h | 8 +---
2 files changed, 15
Provide the possibility to pass the 'filter-node-name' parameter to the
block-stream job as it is done for the commit block job.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/monitor/block-hmp-cmds.c | 4 ++--
block/stream.c | 4
On 27.10.2020 21:24, Andrey Shinkevich wrote:
On 27.10.2020 20:57, Vladimir Sementsov-Ogievskiy wrote:
27.10.2020 20:48, Andrey Shinkevich wrote:
On 27.10.2020 19:13, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
This patch completes the series
a command into the queue. To keep that concept functional, the
monitor should track the end of a single QMP command. It allows the
dispatcher handling the command and send a response to client in time.
Signed-off-by: Andrey Shinkevich
---
include/qapi/qmp/json-parser.h | 5 +++--
monitor/qmp.c
.
Suggested-by: Denis V. Lunev
Signed-off-by: Andrey Shinkevich
---
monitor/monitor.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/monitor/monitor.c b/monitor/monitor.c
index 84222cd..43d2d3b 100644
--- a/monitor/monitor.c
+++ b/monitor/monitor.c
@@ -566,7 +566,7 @@ int
When CHR_EVENT_CLOSED comes, the QMP requests queue may still contain
unprocessed commands. It can happen with QMP capability OOB enabled.
Let the dispatcher complete handling requests rest in the monitor
queue.
Signed-off-by: Andrey Shinkevich
---
monitor/qmp.c | 46
On 24.11.2020 14:03, Vladimir Sementsov-Ogievskiy wrote:
23.11.2020 18:44, Andrey Shinkevich wrote:
QMP and HMP monitors read one byte at a time from the socket or stdin,
which is very inefficient. With 100+ VMs on the host, this results in
multiple extra system calls and CPU overuse
xisting JSON parser were used to track the end of a QMP command.
04: The amount of read input data increases only.
Andrey Shinkevich (4):
monitor: change function obsolete name in comments
monitor: drain requests queue with 'channel closed' event
monitor: let QMP monitor track JSON message conte
From: Vladimir Sementsov-Ogievskiy
Busy is racy, job has it's "pause-points" when it's not busy. Drop this
check.
Signed-off-by: Vladimir Sementsov-Ogievskiy
Reviewed-by: Max Reitz
---
tests/qemu-iotests/129 | 1 -
1 file changed, 1 deletion(-)
diff --git a/tests/qemu-iotests/129
The function name monitor_qmp_bh_dispatcher() has been changed to
monitor_qmp_dispatcher_co() since the commit 9ce44e2c. Let's amend the
comments.
Signed-off-by: Andrey Shinkevich
---
monitor/qmp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/monitor/qmp.c b/monitor
On 23.11.2020 18:44, Andrey Shinkevich wrote:
This patch paves the way for the one that follows. The following patch
makes the QMP monitor to read up to 4K from stdin at once. That results
in running the bash 'sleep' command before the _qemu_proc_exec() starts
in subshell. Another 'sleep
On 24.11.2020 13:04, Vladimir Sementsov-Ogievskiy wrote:
23.11.2020 18:44, Andrey Shinkevich wrote:
This patch paves the way for the one that follows. The following patch
makes the QMP monitor to read up to 4K from stdin at once. That results
in running the bash 'sleep' command before
On 23.11.2020 18:44, Andrey Shinkevich wrote:
The subject was discussed here:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00206.html
This series is a solution for the issue with QMP monitor buffered input.
A JSON little parser is introduced to separate QMP commands read from
On 23.11.2020 18:44, Andrey Shinkevich wrote:
The subject was discussed here:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00206.html
This series is a solution for the issue with QMP monitor buffered input.
A JSON little parser is introduced to separate QMP commands read from
as a workaround.
Signed-off-by: Andrey Shinkevich
---
tests/qemu-iotests/247 | 2 ++
tests/qemu-iotests/247.out | 1 +
2 files changed, 3 insertions(+)
diff --git a/tests/qemu-iotests/247 b/tests/qemu-iotests/247
index 87e37b3..7d316ec 100755
--- a/tests/qemu-iotests/247
+++ b/tests/qemu-iotests
.
A JSON little parser is introduced to throttle QMP commands read from
the buffer so that incoming requests do not overflow the monitor input
queue.
Suggested-by: Denis V. Lunev
Signed-off-by: Andrey Shinkevich
---
chardev/char-fd.c | 35 +--
chardev/char
synchronization was added to protect the input queue
from overflow.
Andrey Shinkevich (2):
iotests: add another bash sleep command to 247
monitor: increase amount of data for monitor to read
chardev/char-fd.c | 35 +--
chardev/char-soc
On 09.11.2020 12:55, Vladimir Sementsov-Ogievskiy wrote:
06.11.2020 15:42, Andrey Shinkevich wrote:
QMP and HMP monitors read one byte at a time from the socket or stdin,
which is very inefficient. With 100+ VMs on the host, this results in
multiple extra system calls and CPU overuse
On 09.11.2020 13:04, Vladimir Sementsov-Ogievskiy wrote:
09.11.2020 11:50, Vladimir Sementsov-Ogievskiy wrote:
06.11.2020 15:42, Andrey Shinkevich wrote:
The subject was discussed here:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg00206.html
This series is a solution
Please exclude this address when reply:
jc...@redhat.com
Andrey
.
Suggested-by: Denis V. Lunev
Signed-off-by: Andrey Shinkevich
---
chardev/char-fd.c | 64 +-
chardev/char-socket.c | 54 +++---
chardev/char.c | 40 +
include/chardev
as a workaround.
Signed-off-by: Andrey Shinkevich
---
tests/qemu-iotests/247 | 2 ++
tests/qemu-iotests/247.out | 1 +
2 files changed, 3 insertions(+)
diff --git a/tests/qemu-iotests/247 b/tests/qemu-iotests/247
index 87e37b3..7d316ec 100755
--- a/tests/qemu-iotests/247
+++ b/tests/qemu-iotests
#129 passed, the following patch should be applied first:
'[PATCH v3 01/25] iotests: 129 don't check backup "busy"'.
Andrey Shinkevich (2):
iotests: add another bash sleep command to 247
monitor: increase amount of data for monitor to read
chardev/char-fd.
On 27.10.2020 20:57, Vladimir Sementsov-Ogievskiy wrote:
27.10.2020 20:48, Andrey Shinkevich wrote:
On 27.10.2020 19:13, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
This patch completes the series with the COR-filter insertion for
block-stream operations
On 27.10.2020 19:13, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
This patch completes the series with the COR-filter insertion for
block-stream operations. Adding the filter makes it possible for copied
regions to be discarded in backing files during
On 27.10.2020 19:21, Vladimir Sementsov-Ogievskiy wrote:
27.10.2020 19:01, Andrey Shinkevich wrote:
On 27.10.2020 18:09, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
Avoid writing a filter JSON file name and a filter format name to QCOW2
image when
On 27.10.2020 18:09, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
Avoid writing a filter JSON file name and a filter format name to QCOW2
image when the backing file is changed after the block stream job.
A user is still able to assign the 'backing-file
On 23.10.2020 17:45, Vladimir Sementsov-Ogievskiy wrote:
22.10.2020 21:13, Andrey Shinkevich wrote:
We are going to use the COR-filter for a block-stream job.
To limit COR operations by the base node in the backing chain during
stream job, pass the bottom node name, that is the first non
If the flag BDRV_REQ_PREFETCH was set, skip idling read/write
operations in COR-driver. It can be taken into account for the
COR-algorithms optimization. That check is being made during the
block stream job by the moment.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 12
concurrent jobs.
The rest of the functionality will be implemented in the patch that
follows.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 16
1 file changed, 16 insertions(+)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index 618c4c4..3d8e4db 100644
Modify the comment for the flag BDRV_REQ_PREFETCH as we are going to
use it alone and pass it to the COR-filter driver for further
processing.
Signed-off-by: Andrey Shinkevich
---
include/block/block.h | 8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/include/block
not specify the 'backing-file' parameter, QEMU will
assign it automatically.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 15 +--
blockdev.c | 9 ++---
2 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/block/stream.c b/block/stream.c
index e0540ee..1ba74ab
yer.
11: COR flag was added.
12: The condition was fixed.
13: The 'backing-file' parameter returned. No deprecation.
14: The COR-filter 'add' function replaced with the 'insert node' generic
function. Fixes based on the review of the v11.
Andrey Shinkevich (14):
copy-on-read: supp
Add the BDRV_REQ_COPY_ON_READ and BDRV_REQ_PREFETCH flags to the
supported_read_flags of the COR-filter.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index 8178a91..a2b180a 100644
. The concept of the parallel
jobs with common nodes is considered vital no more.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 98 ++
tests/qemu-iotests/030 | 51 +++-
tests/qemu-iotests/030.out | 4 +-
tests/qemu
Add support for the recently introduced functions
bdrv_co_preadv_part()
and
bdrv_co_pwritev_part()
to the COR-filter driver.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 28
1 file changed, 16 insertions
Create the BlockdevOptionsCor structure for COR driver specific options
splitting it off form the BlockdevOptionsGenericFormat. The only option
'bottom' node in the structure denotes an image file that limits the
COR operations in the backing chain.
Suggested-by: Max Reitz
Signed-off-by: Andrey
Add the new member supported_read_flags to the BlockDriverState
structure. It will control the flags set for copy-on-read operations.
Make the block generic layer evaluate supported read flags before they
go to a block driver.
Suggested-by: Vladimir Sementsov-Ogievskiy
Signed-off-by: Andrey
Provide API for a node insertion to and removal from a backing chain.
Suggested-by: Max Reitz
Signed-off-by: Andrey Shinkevich
---
block.c | 49 +
include/block/block.h | 3 +++
2 files changed, 52 insertions(+)
diff --git
The test case #310 is similar to #216 by Max Reitz. The difference is
that the test #310 involves a bottom node to the COR filter driver.
Signed-off-by: Andrey Shinkevich
---
tests/qemu-iotests/310 | 109 +
tests/qemu-iotests/310.out | 15
.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 42 --
1 file changed, 40 insertions(+), 2 deletions(-)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index 3d8e4db..8178a91 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
system has overhauled.
To insert the filter, the block generic layer function
bdrv_insert_node() can be used.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 56
block/copy-on-read.h | 32 ++
2 files
Provide the possibility to pass the 'filter-node-name' parameter to the
block-stream job as it is done for the commit block job.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/monitor/block-hmp-cmds.c | 4 ++--
block/stream.c | 4
On 21.10.2020 23:43, Andrey Shinkevich wrote:
On 14.10.2020 18:22, Vladimir Sementsov-Ogievskiy wrote:
14.10.2020 15:51, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can
On 14.10.2020 18:22, Vladimir Sementsov-Ogievskiy wrote:
14.10.2020 15:51, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can be taken into account for
the COR-algorithms
On 16.10.2020 18:45, Vladimir Sementsov-Ogievskiy wrote:
15.10.2020 20:16, Andrey Shinkevich wrote:
On 14.10.2020 19:24, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
[...]
---
block/stream.c | 93
+-
tests/qemu
On 15.10.2020 20:16, Andrey Shinkevich wrote:
On 14.10.2020 19:24, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
[...]
---
block/stream.c | 93
+-
tests/qemu-iotests/030 | 51 +++--
tests
On 15.10.2020 18:56, Max Reitz wrote:
On 14.10.20 20:57, Andrey Shinkevich wrote:
On 14.10.2020 15:01, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Limit COR operations by the base node in the backing chain when the
overlay base node name is given. It will be useful
On 14.10.2020 19:24, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
[...]
---
block/stream.c | 93 +-
tests/qemu-iotests/030 | 51 +++--
tests/qemu-iotests/030.out | 4 +-
tests/qemu-iotests
On 14.10.2020 18:43, Vladimir Sementsov-Ogievskiy wrote:
14.10.2020 18:03, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Whereas the block-stream job starts using a backing file name of the
base node overlay after the block-stream job completes, mark the QMP
'backing-file
On 14.10.2020 15:51, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can be taken into account for
the COR-algorithms optimization. That check is being made during the
block stream
On 14.10.2020 15:22, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Modify the comment for the flag BDRV_REQ_PREFETCH as we are going to
use it alone and pass it to the COR-filter driver for further
processing.
Signed-off-by: Andrey Shinkevich
---
include/block/block.h | 7
On 14.10.2020 15:01, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Limit COR operations by the base node in the backing chain when the
overlay base node name is given. It will be useful for a block stream
job when the COR-filter is applied. The overlay base node is passed
On 14.10.2020 14:59, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Limit COR operations by the base node in the backing chain when the
overlay base node name is given. It will be useful for a block stream
job when the COR-filter is applied. The overlay base node is passed
On 14.10.2020 14:09, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
We are going to use the COR-filter for a block-stream job.
To limit COR operations by the base node in the backing chain during
stream job, pass the name of overlay base node to the copy-on-read
driver as base
On 14.10.2020 13:44, Max Reitz wrote:
On 12.10.20 19:43, Andrey Shinkevich wrote:
Provide API for the COR-filter insertion/removal.
Also, drop the filter child permissions for an inactive state when the
filter node is being removed.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir
. The concept of the parallel
jobs with common nodes is considered vital no more.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 93 +-
tests/qemu-iotests/030 | 51 +++--
tests/qemu-iotests/030.out | 4 +-
tests/qemu
The 'backing-file' argument is not used by the block-stream job. It
designates a backing file name to set in QCOW2 image header after the
block-stream job finished. A backing file name of the node above base
is used instead.
Signed-off-by: Andrey Shinkevich
---
block/stream.c| 6
Whereas the block-stream job starts using a backing file name of the
base node overlay after the block-stream job completes, mark the QMP
'backing-file' argument as deprecated.
Signed-off-by: Andrey Shinkevich
---
docs/system/deprecated.rst | 6 ++
1 file changed, 6 insertions(+)
diff
Add support for the BDRV_REQ_PREFETCH flag to the supported_write_flags
of the COR-filter.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index dfbd6ad..b136895 100644
--- a/block/copy
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can be taken into account for
the COR-algorithms optimization. That check is being made during the
block stream job by the moment.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 13
Avoid writing a filter JSON-name to QCOW2 image when the backing file
is changed after the block stream job.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/block/stream.c b/block/stream.c
index e0540ee..51462bd
Add the new member supported_read_flags to BlockDriverState structure.
It will control the BDRV_REQ_PREFETCH flag set for copy-on-read
operations.
Signed-off-by: Andrey Shinkevich
---
include/block/block_int.h | 4
1 file changed, 4 insertions(+)
diff --git a/include/block/block_int.h b
Modify the comment for the flag BDRV_REQ_PREFETCH as we are going to
use it alone and pass it to the COR-filter driver for further
processing.
Signed-off-by: Andrey Shinkevich
---
include/block/block.h | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/block
.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 39 +--
1 file changed, 37 insertions(+), 2 deletions(-)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index c578b1b..dfbd6ad 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
Provide API for the COR-filter insertion/removal.
Also, drop the filter child permissions for an inactive state when the
filter node is being removed.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 88
will be implemented in the patch that
follows.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 14 ++
1 file changed, 14 insertions(+)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index bcccf0f..c578b1b 100644
--- a/block/copy-on-read.c
+++ b/block/copy
Provide the possibility to pass the 'filter-node-name' parameter to the
block-stream job as it is done for the commit block job.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/monitor/block-hmp-cmds.c | 4 ++--
block/stream.c | 4
Add support for the recently introduced functions
bdrv_co_preadv_part()
and
bdrv_co_pwritev_part()
to the COR-filter driver.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 28
1 file changed, 16 insertions
the stream_populate();
The 'implicit' initialization moved back to COR-filter driver.
Base node overlay is used instead of base.
The v8 Message-Id:
<1601383109-110988-1-git-send-email-andrey.shinkev...@virtuozzo.com>
Andrey Shinkevich (13):
copy-on-read: Support preadv/pwrite
On 07.10.2020 22:28, Vladimir Sementsov-Ogievskiy wrote:
07.10.2020 22:01, Andrey Shinkevich wrote:
On 07.10.2020 13:06, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded
On 07.10.2020 13:21, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
The block stream QMP parameter backing-file is in use no more. It
designates a backing file name to set in QCOW2 image header after the
block stream job finished. The base file name is used
On 07.10.2020 13:06, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can be taken into account for
the COR-algorithms optimization. That check is being made
On 07.10.2020 20:27, Andrey Shinkevich wrote:
On 29.09.2020 15:38, Andrey Shinkevich wrote:
This patch completes the series with the COR-filter insertion for
block-stream operations. Adding the filter makes it possible for copied
regions to be discarded in backing files during the block
On 29.09.2020 15:38, Andrey Shinkevich wrote:
This patch completes the series with the COR-filter insertion for
block-stream operations. Adding the filter makes it possible for copied
regions to be discarded in backing files during the block-stream job,
what will reduce the disk overuse
On 05.10.2020 17:58, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
Limit the guest's COR operations by the base node in the backing chain
when the base node name is given. It will be useful for a block stream
job when the COR-filter is applied.
Signed-off
On 05.10.2020 17:58, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
Limit the guest's COR operations by the base node in the backing chain
when the base node name is given. It will be useful for a block stream
job when the COR-filter is applied.
Signed-off
On 05.10.2020 16:34, Vladimir Sementsov-Ogievskiy wrote:
29.09.2020 15:38, Andrey Shinkevich wrote:
Provide API for the COR-filter insertion/removal.
Also, drop the filter child permissions for an inactive state when the
filter node is being removed.
Signed-off-by: Andrey Shinkevich
Avoid writing a filter JSON-name to QCOW2 image when the backing file
is changed after the block stream job.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/block/stream.c b/block/stream.c
index e0540ee..b0719e9
. The concept of the parallel
jobs with common nodes is considered vital no more.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 93 ++
tests/qemu-iotests/030 | 51 +++--
tests/qemu-iotests/030.out | 4 +-
tests/qemu
If the flag BDRV_REQ_PREFETCH was set, pass it further to the
COR-driver to skip unneeded reading. It can be taken into account for
the COR-algorithms optimization. That check is being made during the
block stream job by the moment.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 14
To limit the guest's COR operations by the base node in the backing
chain during stream job, pass the base node name to the copy-on-read
driver. The rest of the functionality will be implemented in the patch
that follows.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 13
The block stream QMP parameter backing-file is in use no more. It
designates a backing file name to set in QCOW2 image header after the
block stream job finished. The base file name is used instead.
Signed-off-by: Andrey Shinkevich
---
block/monitor/block-hmp-cmds.c | 2 +-
block/stream.c
Provide the possibility to pass the 'filter-node-name' parameter to the
block-stream job as it is done for the commit block job.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/monitor/block-hmp-cmds.c | 4 ++--
block/stream.c | 4
Provide API for the COR-filter insertion/removal.
Also, drop the filter child permissions for an inactive state when the
filter node is being removed.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 84
block/copy-on-read.h | 35
Add support for the recently introduced functions
bdrv_co_preadv_part()
and
bdrv_co_pwritev_part()
to the COR-filter driver.
Signed-off-by: Andrey Shinkevich
Reviewed-by: Vladimir Sementsov-Ogievskiy
---
block/copy-on-read.c | 28
1 file changed, 16 insertions
221780-1-git-send-email-andrey.shinkev...@virtuozzo.com>
Andrey Shinkevich (9):
copy-on-read: Support preadv/pwritev_part functions
copy-on-read: add filter append/drop functions
qapi: add filter-node-name to block-stream
copy-on-read: pass base node name to COR driver
copy-on-read: limit
Limit the guest's COR operations by the base node in the backing chain
when the base node name is given. It will be useful for a block stream
job when the COR-filter is applied.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 38 --
1 file changed
. The concept of the parallel
jobs with common nodes is considered vital no more.
Signed-off-by: Andrey Shinkevich
---
block/stream.c | 93 ++
tests/qemu-iotests/030 | 51 +++--
tests/qemu-iotests/030.out | 4 +-
tests/qemu
The block stream QMP parameter backing-file is in use no more. It
designates a backing file name to set in QCOW2 image header after the
block stream job finished. The base file name is used instead.
Signed-off-by: Andrey Shinkevich
---
block/monitor/block-hmp-cmds.c | 2 +-
block/stream.c
Provide API for the COR-filter insertion/removal.
Also, drop the filter child permissions for an inactive state when the
filter node is being removed.
Signed-off-by: Andrey Shinkevich
---
block/copy-on-read.c | 84
1 file changed, 84
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