2013-05-25 03:09:44 +00:00
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/*
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* Block layer qmp and info dump related functions
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2016-01-18 18:01:42 +00:00
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#include "qemu/osdep.h"
|
2019-09-03 12:05:55 +00:00
|
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|
#include "qemu/cutils.h"
|
2013-05-25 03:09:44 +00:00
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|
|
#include "block/qapi.h"
|
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|
|
|
#include "block/block_int.h"
|
2015-06-08 16:17:44 +00:00
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|
#include "block/throttle-groups.h"
|
block: add event when disk usage exceeds threshold
Managing applications, like oVirt (http://www.ovirt.org), make extensive
use of thin-provisioned disk images.
To let the guest run smoothly and be not unnecessarily paused, oVirt sets
a disk usage threshold (so called 'high water mark') based on the occupation
of the device, and automatically extends the image once the threshold
is reached or exceeded.
In order to detect the crossing of the threshold, oVirt has no choice but
aggressively polling the QEMU monitor using the query-blockstats command.
This lead to unnecessary system load, and is made even worse under scale:
deployments with hundreds of VMs are no longer rare.
To fix this, this patch adds:
* A new monitor command `block-set-write-threshold', to set a mark for
a given block device.
* A new event `BLOCK_WRITE_THRESHOLD', to report if a block device
usage exceeds the threshold.
* A new `write_threshold' field into the `BlockDeviceInfo' structure,
to report the configured threshold.
This will allow the managing application to use smarter and more
efficient monitoring, greatly reducing the need of polling.
[Updated qemu-iotests 067 output to add the new 'write_threshold'
property. --Stefan]
[Changed g_assert_false() to !g_assert() to fix the build on older glib
versions. --Kevin]
Signed-off-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1421068273-692-1-git-send-email-fromani@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-01-12 13:11:13 +00:00
|
|
|
#include "block/write-threshold.h"
|
2018-02-01 11:18:31 +00:00
|
|
|
#include "qapi/error.h"
|
2018-02-11 09:36:01 +00:00
|
|
|
#include "qapi/qapi-commands-block-core.h"
|
2016-09-30 14:45:27 +00:00
|
|
|
#include "qapi/qobject-output-visitor.h"
|
2018-02-11 09:36:01 +00:00
|
|
|
#include "qapi/qapi-visit-block-core.h"
|
2018-02-01 11:18:35 +00:00
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|
|
#include "qapi/qmp/qbool.h"
|
2018-02-01 11:18:39 +00:00
|
|
|
#include "qapi/qmp/qdict.h"
|
2018-02-01 11:18:38 +00:00
|
|
|
#include "qapi/qmp/qlist.h"
|
2018-02-01 11:18:36 +00:00
|
|
|
#include "qapi/qmp/qnum.h"
|
2018-02-01 11:18:35 +00:00
|
|
|
#include "qapi/qmp/qstring.h"
|
2019-04-17 19:17:55 +00:00
|
|
|
#include "qemu/qemu-print.h"
|
2014-10-07 11:59:23 +00:00
|
|
|
#include "sysemu/block-backend.h"
|
2016-03-20 17:16:19 +00:00
|
|
|
#include "qemu/cutils.h"
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2016-03-03 10:37:48 +00:00
|
|
|
BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk,
|
2020-01-20 08:50:49 +00:00
|
|
|
BlockDriverState *bs,
|
|
|
|
|
bool flat,
|
|
|
|
|
Error **errp)
|
2014-01-23 20:31:34 +00:00
|
|
|
{
|
2015-04-17 11:52:43 +00:00
|
|
|
ImageInfo **p_image_info;
|
block: Leave BDS.backing_{file,format} constant
Parts of the block layer treat BDS.backing_file as if it were whatever
the image header says (i.e., if it is a relative path, it is relative to
the overlay), other parts treat it like a cache for
bs->backing->bs->filename (relative paths are relative to the CWD).
Considering bs->backing->bs->filename exists, let us make it mean the
former.
Among other things, this now allows the user to specify a base when
using qemu-img to commit an image file in a directory that is not the
CWD (assuming, everything uses relative filenames).
Before this patch:
$ ./qemu-img create -f qcow2 foo/bot.qcow2 1M
$ ./qemu-img create -f qcow2 -b bot.qcow2 foo/mid.qcow2
$ ./qemu-img create -f qcow2 -b mid.qcow2 foo/top.qcow2
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find '[...]/foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
After this patch:
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
Image committed.
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
Image committed.
With this change, bdrv_find_backing_image() must look at whether the
user has overridden a BDS's backing file. If so, it can no longer use
bs->backing_file, but must instead compare the given filename against
the backing node's filename directly.
Note that this changes the QAPI output for a node's backing_file. We
had very inconsistent output there (sometimes what the image header
said, sometimes the actual filename of the backing image). This
inconsistent output was effectively useless, so we have to decide one
way or the other. Considering that bs->backing_file usually at runtime
contained the path to the image relative to qemu's CWD (or absolute),
this patch changes QAPI's backing_file to always report the
bs->backing->bs->filename from now on. If you want to receive the image
header information, you have to refer to full-backing-filename.
This necessitates a change to iotest 228. The interesting information
it really wanted is the image header, and it can get that now, but it
has to use full-backing-filename instead of backing_file. Because of
this patch's changes to bs->backing_file's behavior, we also need some
reference output changes.
Along with the changes to bs->backing_file, stop updating
BDS.backing_format in bdrv_backing_attach() as well. This way,
ImageInfo's backing-filename and backing-filename-format fields will
represent what the image header says and nothing else.
iotest 245 changes in behavior: With the backing node no longer
overriding the parent node's backing_file string, you can now omit the
@backing option when reopening a node with neither a default nor a
current backing file even if it used to have a backing node at some
point.
273 also changes: The base image is opened without a format layer, so
ImageInfo.backing-filename-format used to report "file" for the base
image's overlay after blockdev-snapshot. However, the image header
never says "file" anywhere, so it now reports $IMGFMT.
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-08-01 18:34:11 +00:00
|
|
|
BlockDriverState *bs0, *backing;
|
2017-11-10 20:31:09 +00:00
|
|
|
BlockDeviceInfo *info;
|
2014-01-23 20:31:34 +00:00
|
|
|
|
2017-11-10 20:31:09 +00:00
|
|
|
if (!bs->drv) {
|
|
|
|
|
error_setg(errp, "Block device %s is ejected", bs->node_name);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
block: Use bdrv_refresh_filename() to pull
Before this patch, bdrv_refresh_filename() is used in a pushing manner:
Whenever the BDS graph is modified, the parents of the modified edges
are supposed to be updated (recursively upwards). However, that is
nonviable, considering that we want child changes not to concern
parents.
Also, in the long run we want a pull model anyway: Here, we would have a
bdrv_filename() function which returns a BDS's filename, freshly
constructed.
This patch is an intermediate step. It adds bdrv_refresh_filename()
calls before every place a BDS.filename value is used. The only
exceptions are protocol drivers that use their own filename, which
clearly would not profit from refreshing that filename before.
Also, bdrv_get_encrypted_filename() is removed along the way (as a user
of BDS.filename), since it is completely unused.
In turn, all of the calls to bdrv_refresh_filename() before this patch
are removed, because we no longer have to call this function on graph
changes.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190201192935.18394-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-01 19:29:05 +00:00
|
|
|
bdrv_refresh_filename(bs);
|
|
|
|
|
|
2017-11-10 20:31:09 +00:00
|
|
|
info = g_malloc0(sizeof(*info));
|
2014-01-23 20:31:34 +00:00
|
|
|
info->file = g_strdup(bs->filename);
|
2021-05-27 15:40:54 +00:00
|
|
|
info->ro = bdrv_is_read_only(bs);
|
2014-01-23 20:31:34 +00:00
|
|
|
info->drv = g_strdup(bs->drv->format_name);
|
|
|
|
|
info->encrypted = bs->encrypted;
|
|
|
|
|
|
2014-05-22 11:28:45 +00:00
|
|
|
info->cache = g_new(BlockdevCacheInfo, 1);
|
|
|
|
|
*info->cache = (BlockdevCacheInfo) {
|
2016-03-03 10:37:48 +00:00
|
|
|
.writeback = blk ? blk_enable_write_cache(blk) : true,
|
2014-05-22 11:28:45 +00:00
|
|
|
.direct = !!(bs->open_flags & BDRV_O_NOCACHE),
|
|
|
|
|
.no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH),
|
|
|
|
|
};
|
|
|
|
|
|
2014-01-23 20:31:34 +00:00
|
|
|
if (bs->node_name[0]) {
|
|
|
|
|
info->has_node_name = true;
|
|
|
|
|
info->node_name = g_strdup(bs->node_name);
|
|
|
|
|
}
|
|
|
|
|
|
block: Leave BDS.backing_{file,format} constant
Parts of the block layer treat BDS.backing_file as if it were whatever
the image header says (i.e., if it is a relative path, it is relative to
the overlay), other parts treat it like a cache for
bs->backing->bs->filename (relative paths are relative to the CWD).
Considering bs->backing->bs->filename exists, let us make it mean the
former.
Among other things, this now allows the user to specify a base when
using qemu-img to commit an image file in a directory that is not the
CWD (assuming, everything uses relative filenames).
Before this patch:
$ ./qemu-img create -f qcow2 foo/bot.qcow2 1M
$ ./qemu-img create -f qcow2 -b bot.qcow2 foo/mid.qcow2
$ ./qemu-img create -f qcow2 -b mid.qcow2 foo/top.qcow2
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find '[...]/foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
After this patch:
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
Image committed.
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
Image committed.
With this change, bdrv_find_backing_image() must look at whether the
user has overridden a BDS's backing file. If so, it can no longer use
bs->backing_file, but must instead compare the given filename against
the backing node's filename directly.
Note that this changes the QAPI output for a node's backing_file. We
had very inconsistent output there (sometimes what the image header
said, sometimes the actual filename of the backing image). This
inconsistent output was effectively useless, so we have to decide one
way or the other. Considering that bs->backing_file usually at runtime
contained the path to the image relative to qemu's CWD (or absolute),
this patch changes QAPI's backing_file to always report the
bs->backing->bs->filename from now on. If you want to receive the image
header information, you have to refer to full-backing-filename.
This necessitates a change to iotest 228. The interesting information
it really wanted is the image header, and it can get that now, but it
has to use full-backing-filename instead of backing_file. Because of
this patch's changes to bs->backing_file's behavior, we also need some
reference output changes.
Along with the changes to bs->backing_file, stop updating
BDS.backing_format in bdrv_backing_attach() as well. This way,
ImageInfo's backing-filename and backing-filename-format fields will
represent what the image header says and nothing else.
iotest 245 changes in behavior: With the backing node no longer
overriding the parent node's backing_file string, you can now omit the
@backing option when reopening a node with neither a default nor a
current backing file even if it used to have a backing node at some
point.
273 also changes: The base image is opened without a format layer, so
ImageInfo.backing-filename-format used to report "file" for the base
image's overlay after blockdev-snapshot. However, the image header
never says "file" anywhere, so it now reports $IMGFMT.
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-08-01 18:34:11 +00:00
|
|
|
backing = bdrv_cow_bs(bs);
|
|
|
|
|
if (backing) {
|
2014-01-23 20:31:34 +00:00
|
|
|
info->has_backing_file = true;
|
block: Leave BDS.backing_{file,format} constant
Parts of the block layer treat BDS.backing_file as if it were whatever
the image header says (i.e., if it is a relative path, it is relative to
the overlay), other parts treat it like a cache for
bs->backing->bs->filename (relative paths are relative to the CWD).
Considering bs->backing->bs->filename exists, let us make it mean the
former.
Among other things, this now allows the user to specify a base when
using qemu-img to commit an image file in a directory that is not the
CWD (assuming, everything uses relative filenames).
Before this patch:
$ ./qemu-img create -f qcow2 foo/bot.qcow2 1M
$ ./qemu-img create -f qcow2 -b bot.qcow2 foo/mid.qcow2
$ ./qemu-img create -f qcow2 -b mid.qcow2 foo/top.qcow2
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find '[...]/foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
After this patch:
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
Image committed.
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
Image committed.
With this change, bdrv_find_backing_image() must look at whether the
user has overridden a BDS's backing file. If so, it can no longer use
bs->backing_file, but must instead compare the given filename against
the backing node's filename directly.
Note that this changes the QAPI output for a node's backing_file. We
had very inconsistent output there (sometimes what the image header
said, sometimes the actual filename of the backing image). This
inconsistent output was effectively useless, so we have to decide one
way or the other. Considering that bs->backing_file usually at runtime
contained the path to the image relative to qemu's CWD (or absolute),
this patch changes QAPI's backing_file to always report the
bs->backing->bs->filename from now on. If you want to receive the image
header information, you have to refer to full-backing-filename.
This necessitates a change to iotest 228. The interesting information
it really wanted is the image header, and it can get that now, but it
has to use full-backing-filename instead of backing_file. Because of
this patch's changes to bs->backing_file's behavior, we also need some
reference output changes.
Along with the changes to bs->backing_file, stop updating
BDS.backing_format in bdrv_backing_attach() as well. This way,
ImageInfo's backing-filename and backing-filename-format fields will
represent what the image header says and nothing else.
iotest 245 changes in behavior: With the backing node no longer
overriding the parent node's backing_file string, you can now omit the
@backing option when reopening a node with neither a default nor a
current backing file even if it used to have a backing node at some
point.
273 also changes: The base image is opened without a format layer, so
ImageInfo.backing-filename-format used to report "file" for the base
image's overlay after blockdev-snapshot. However, the image header
never says "file" anywhere, so it now reports $IMGFMT.
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-08-01 18:34:11 +00:00
|
|
|
info->backing_file = g_strdup(backing->filename);
|
2014-01-23 20:31:34 +00:00
|
|
|
}
|
|
|
|
|
|
2019-07-29 20:35:56 +00:00
|
|
|
if (!QLIST_EMPTY(&bs->dirty_bitmaps)) {
|
|
|
|
|
info->has_dirty_bitmaps = true;
|
|
|
|
|
info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs);
|
|
|
|
|
}
|
|
|
|
|
|
2014-05-17 22:58:19 +00:00
|
|
|
info->detect_zeroes = bs->detect_zeroes;
|
2014-01-23 20:31:34 +00:00
|
|
|
|
2017-08-25 13:20:23 +00:00
|
|
|
if (blk && blk_get_public(blk)->throttle_group_member.throttle_state) {
|
2014-01-23 20:31:34 +00:00
|
|
|
ThrottleConfig cfg;
|
2017-08-25 13:20:23 +00:00
|
|
|
BlockBackendPublic *blkp = blk_get_public(blk);
|
2015-06-08 16:17:44 +00:00
|
|
|
|
2017-08-25 13:20:23 +00:00
|
|
|
throttle_group_get_config(&blkp->throttle_group_member, &cfg);
|
2015-06-08 16:17:44 +00:00
|
|
|
|
2014-01-23 20:31:34 +00:00
|
|
|
info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg;
|
|
|
|
|
info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg;
|
|
|
|
|
info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg;
|
|
|
|
|
|
|
|
|
|
info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg;
|
|
|
|
|
info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg;
|
|
|
|
|
info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg;
|
|
|
|
|
|
|
|
|
|
info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max;
|
|
|
|
|
info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max;
|
|
|
|
|
info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max;
|
|
|
|
|
info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max;
|
|
|
|
|
info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max;
|
|
|
|
|
info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max;
|
|
|
|
|
|
|
|
|
|
info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max;
|
|
|
|
|
info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max;
|
|
|
|
|
info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max;
|
|
|
|
|
info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max;
|
|
|
|
|
info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max;
|
|
|
|
|
info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max;
|
|
|
|
|
|
2016-02-18 10:27:04 +00:00
|
|
|
info->has_bps_max_length = info->has_bps_max;
|
|
|
|
|
info->bps_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_BPS_TOTAL].burst_length;
|
|
|
|
|
info->has_bps_rd_max_length = info->has_bps_rd_max;
|
|
|
|
|
info->bps_rd_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_BPS_READ].burst_length;
|
|
|
|
|
info->has_bps_wr_max_length = info->has_bps_wr_max;
|
|
|
|
|
info->bps_wr_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_BPS_WRITE].burst_length;
|
|
|
|
|
|
|
|
|
|
info->has_iops_max_length = info->has_iops_max;
|
|
|
|
|
info->iops_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_OPS_TOTAL].burst_length;
|
|
|
|
|
info->has_iops_rd_max_length = info->has_iops_rd_max;
|
|
|
|
|
info->iops_rd_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_OPS_READ].burst_length;
|
|
|
|
|
info->has_iops_wr_max_length = info->has_iops_wr_max;
|
|
|
|
|
info->iops_wr_max_length =
|
|
|
|
|
cfg.buckets[THROTTLE_OPS_WRITE].burst_length;
|
|
|
|
|
|
2014-01-23 20:31:34 +00:00
|
|
|
info->has_iops_size = cfg.op_size;
|
|
|
|
|
info->iops_size = cfg.op_size;
|
2015-06-08 16:17:46 +00:00
|
|
|
|
|
|
|
|
info->has_group = true;
|
2017-08-25 13:20:23 +00:00
|
|
|
info->group =
|
|
|
|
|
g_strdup(throttle_group_get_name(&blkp->throttle_group_member));
|
2014-01-23 20:31:34 +00:00
|
|
|
}
|
|
|
|
|
|
block: add event when disk usage exceeds threshold
Managing applications, like oVirt (http://www.ovirt.org), make extensive
use of thin-provisioned disk images.
To let the guest run smoothly and be not unnecessarily paused, oVirt sets
a disk usage threshold (so called 'high water mark') based on the occupation
of the device, and automatically extends the image once the threshold
is reached or exceeded.
In order to detect the crossing of the threshold, oVirt has no choice but
aggressively polling the QEMU monitor using the query-blockstats command.
This lead to unnecessary system load, and is made even worse under scale:
deployments with hundreds of VMs are no longer rare.
To fix this, this patch adds:
* A new monitor command `block-set-write-threshold', to set a mark for
a given block device.
* A new event `BLOCK_WRITE_THRESHOLD', to report if a block device
usage exceeds the threshold.
* A new `write_threshold' field into the `BlockDeviceInfo' structure,
to report the configured threshold.
This will allow the managing application to use smarter and more
efficient monitoring, greatly reducing the need of polling.
[Updated qemu-iotests 067 output to add the new 'write_threshold'
property. --Stefan]
[Changed g_assert_false() to !g_assert() to fix the build on older glib
versions. --Kevin]
Signed-off-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1421068273-692-1-git-send-email-fromani@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-01-12 13:11:13 +00:00
|
|
|
info->write_threshold = bdrv_write_threshold_get(bs);
|
|
|
|
|
|
2015-04-17 11:52:43 +00:00
|
|
|
bs0 = bs;
|
|
|
|
|
p_image_info = &info->image;
|
2017-07-18 15:24:05 +00:00
|
|
|
info->backing_file_depth = 0;
|
2015-04-17 11:52:43 +00:00
|
|
|
while (1) {
|
|
|
|
|
Error *local_err = NULL;
|
|
|
|
|
bdrv_query_image_info(bs0, p_image_info, &local_err);
|
|
|
|
|
if (local_err) {
|
|
|
|
|
error_propagate(errp, local_err);
|
|
|
|
|
qapi_free_BlockDeviceInfo(info);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
2017-07-18 15:24:05 +00:00
|
|
|
|
2020-01-20 08:50:49 +00:00
|
|
|
/* stop gathering data for flat output */
|
|
|
|
|
if (flat) {
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
2019-06-12 16:23:25 +00:00
|
|
|
if (bs0->drv && bdrv_filter_or_cow_child(bs0)) {
|
|
|
|
|
/*
|
|
|
|
|
* Put any filtered child here (for backwards compatibility to when
|
|
|
|
|
* we put bs0->backing here, which might be any filtered child).
|
|
|
|
|
*/
|
2017-07-18 15:24:05 +00:00
|
|
|
info->backing_file_depth++;
|
2019-06-12 16:23:25 +00:00
|
|
|
bs0 = bdrv_filter_or_cow_bs(bs0);
|
2015-04-17 11:52:43 +00:00
|
|
|
(*p_image_info)->has_backing_image = true;
|
|
|
|
|
p_image_info = &((*p_image_info)->backing_image);
|
|
|
|
|
} else {
|
|
|
|
|
break;
|
|
|
|
|
}
|
2017-07-18 15:24:05 +00:00
|
|
|
|
|
|
|
|
/* Skip automatically inserted nodes that the user isn't aware of for
|
|
|
|
|
* query-block (blk != NULL), but not for query-named-block-nodes */
|
2019-06-12 16:23:25 +00:00
|
|
|
if (blk) {
|
|
|
|
|
bs0 = bdrv_skip_implicit_filters(bs0);
|
2017-07-18 15:24:05 +00:00
|
|
|
}
|
2015-04-17 11:52:43 +00:00
|
|
|
}
|
|
|
|
|
|
2014-01-23 20:31:34 +00:00
|
|
|
return info;
|
|
|
|
|
}
|
|
|
|
|
|
2013-06-06 04:27:57 +00:00
|
|
|
/*
|
|
|
|
|
* Returns 0 on success, with *p_list either set to describe snapshot
|
|
|
|
|
* information, or NULL because there are no snapshots. Returns -errno on
|
|
|
|
|
* error, with *p_list untouched.
|
|
|
|
|
*/
|
|
|
|
|
int bdrv_query_snapshot_info_list(BlockDriverState *bs,
|
|
|
|
|
SnapshotInfoList **p_list,
|
|
|
|
|
Error **errp)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
|
|
|
|
int i, sn_count;
|
|
|
|
|
QEMUSnapshotInfo *sn_tab = NULL;
|
2021-01-13 22:10:13 +00:00
|
|
|
SnapshotInfoList *head = NULL, **tail = &head;
|
2013-06-06 04:27:57 +00:00
|
|
|
SnapshotInfo *info;
|
|
|
|
|
|
2013-05-25 03:09:44 +00:00
|
|
|
sn_count = bdrv_snapshot_list(bs, &sn_tab);
|
2013-06-06 04:27:57 +00:00
|
|
|
if (sn_count < 0) {
|
|
|
|
|
const char *dev = bdrv_get_device_name(bs);
|
|
|
|
|
switch (sn_count) {
|
|
|
|
|
case -ENOMEDIUM:
|
|
|
|
|
error_setg(errp, "Device '%s' is not inserted", dev);
|
|
|
|
|
break;
|
|
|
|
|
case -ENOTSUP:
|
|
|
|
|
error_setg(errp,
|
|
|
|
|
"Device '%s' does not support internal snapshots",
|
|
|
|
|
dev);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
error_setg_errno(errp, -sn_count,
|
|
|
|
|
"Can't list snapshots of device '%s'", dev);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return sn_count;
|
|
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
|
|
|
|
|
for (i = 0; i < sn_count; i++) {
|
2013-06-06 04:27:57 +00:00
|
|
|
info = g_new0(SnapshotInfo, 1);
|
|
|
|
|
info->id = g_strdup(sn_tab[i].id_str);
|
|
|
|
|
info->name = g_strdup(sn_tab[i].name);
|
|
|
|
|
info->vm_state_size = sn_tab[i].vm_state_size;
|
|
|
|
|
info->date_sec = sn_tab[i].date_sec;
|
|
|
|
|
info->date_nsec = sn_tab[i].date_nsec;
|
|
|
|
|
info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000;
|
|
|
|
|
info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000;
|
2020-10-03 17:13:08 +00:00
|
|
|
info->icount = sn_tab[i].icount;
|
|
|
|
|
info->has_icount = sn_tab[i].icount != -1ULL;
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2021-01-13 22:10:13 +00:00
|
|
|
QAPI_LIST_APPEND(tail, info);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
g_free(sn_tab);
|
2013-06-06 04:27:57 +00:00
|
|
|
*p_list = head;
|
|
|
|
|
return 0;
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2013-06-06 04:27:58 +00:00
|
|
|
/**
|
|
|
|
|
* bdrv_query_image_info:
|
|
|
|
|
* @bs: block device to examine
|
|
|
|
|
* @p_info: location to store image information
|
|
|
|
|
* @errp: location to store error information
|
|
|
|
|
*
|
2013-06-06 04:27:59 +00:00
|
|
|
* Store "flat" image information in @p_info.
|
|
|
|
|
*
|
|
|
|
|
* "Flat" means it does *not* query backing image information,
|
|
|
|
|
* i.e. (*pinfo)->has_backing_image will be set to false and
|
|
|
|
|
* (*pinfo)->backing_image to NULL even when the image does in fact have
|
|
|
|
|
* a backing image.
|
|
|
|
|
*
|
2013-06-06 04:27:58 +00:00
|
|
|
* @p_info will be set only on success. On error, store error in @errp.
|
|
|
|
|
*/
|
|
|
|
|
void bdrv_query_image_info(BlockDriverState *bs,
|
|
|
|
|
ImageInfo **p_info,
|
|
|
|
|
Error **errp)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
2014-06-26 11:23:25 +00:00
|
|
|
int64_t size;
|
2013-06-06 04:27:58 +00:00
|
|
|
const char *backing_filename;
|
2013-05-25 03:09:44 +00:00
|
|
|
BlockDriverInfo bdi;
|
2013-06-06 04:27:58 +00:00
|
|
|
int ret;
|
|
|
|
|
Error *err = NULL;
|
2014-06-26 11:23:25 +00:00
|
|
|
ImageInfo *info;
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2015-12-23 10:48:23 +00:00
|
|
|
aio_context_acquire(bdrv_get_aio_context(bs));
|
|
|
|
|
|
2014-06-26 11:23:25 +00:00
|
|
|
size = bdrv_getlength(bs);
|
|
|
|
|
if (size < 0) {
|
2017-01-19 13:07:58 +00:00
|
|
|
error_setg_errno(errp, -size, "Can't get image size '%s'",
|
|
|
|
|
bs->exact_filename);
|
2015-12-23 10:48:23 +00:00
|
|
|
goto out;
|
2014-06-26 11:23:25 +00:00
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
|
block: Use bdrv_refresh_filename() to pull
Before this patch, bdrv_refresh_filename() is used in a pushing manner:
Whenever the BDS graph is modified, the parents of the modified edges
are supposed to be updated (recursively upwards). However, that is
nonviable, considering that we want child changes not to concern
parents.
Also, in the long run we want a pull model anyway: Here, we would have a
bdrv_filename() function which returns a BDS's filename, freshly
constructed.
This patch is an intermediate step. It adds bdrv_refresh_filename()
calls before every place a BDS.filename value is used. The only
exceptions are protocol drivers that use their own filename, which
clearly would not profit from refreshing that filename before.
Also, bdrv_get_encrypted_filename() is removed along the way (as a user
of BDS.filename), since it is completely unused.
In turn, all of the calls to bdrv_refresh_filename() before this patch
are removed, because we no longer have to call this function on graph
changes.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190201192935.18394-2-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-01 19:29:05 +00:00
|
|
|
bdrv_refresh_filename(bs);
|
|
|
|
|
|
2014-06-26 11:23:25 +00:00
|
|
|
info = g_new0(ImageInfo, 1);
|
2013-06-06 04:27:58 +00:00
|
|
|
info->filename = g_strdup(bs->filename);
|
2013-05-25 03:09:44 +00:00
|
|
|
info->format = g_strdup(bdrv_get_format_name(bs));
|
2014-06-26 11:23:25 +00:00
|
|
|
info->virtual_size = size;
|
2013-05-25 03:09:44 +00:00
|
|
|
info->actual_size = bdrv_get_allocated_file_size(bs);
|
|
|
|
|
info->has_actual_size = info->actual_size >= 0;
|
2019-06-12 15:08:20 +00:00
|
|
|
if (bs->encrypted) {
|
2013-05-25 03:09:44 +00:00
|
|
|
info->encrypted = true;
|
|
|
|
|
info->has_encrypted = true;
|
|
|
|
|
}
|
|
|
|
|
if (bdrv_get_info(bs, &bdi) >= 0) {
|
|
|
|
|
if (bdi.cluster_size != 0) {
|
|
|
|
|
info->cluster_size = bdi.cluster_size;
|
|
|
|
|
info->has_cluster_size = true;
|
|
|
|
|
}
|
|
|
|
|
info->dirty_flag = bdi.is_dirty;
|
|
|
|
|
info->has_dirty_flag = true;
|
|
|
|
|
}
|
2019-02-08 15:06:06 +00:00
|
|
|
info->format_specific = bdrv_get_specific_info(bs, &err);
|
|
|
|
|
if (err) {
|
|
|
|
|
error_propagate(errp, err);
|
|
|
|
|
qapi_free_ImageInfo(info);
|
|
|
|
|
goto out;
|
|
|
|
|
}
|
2013-10-09 08:46:16 +00:00
|
|
|
info->has_format_specific = info->format_specific != NULL;
|
|
|
|
|
|
2013-06-06 04:27:58 +00:00
|
|
|
backing_filename = bs->backing_file;
|
2013-05-25 03:09:44 +00:00
|
|
|
if (backing_filename[0] != '\0') {
|
2019-02-01 19:29:15 +00:00
|
|
|
char *backing_filename2;
|
block: Leave BDS.backing_{file,format} constant
Parts of the block layer treat BDS.backing_file as if it were whatever
the image header says (i.e., if it is a relative path, it is relative to
the overlay), other parts treat it like a cache for
bs->backing->bs->filename (relative paths are relative to the CWD).
Considering bs->backing->bs->filename exists, let us make it mean the
former.
Among other things, this now allows the user to specify a base when
using qemu-img to commit an image file in a directory that is not the
CWD (assuming, everything uses relative filenames).
Before this patch:
$ ./qemu-img create -f qcow2 foo/bot.qcow2 1M
$ ./qemu-img create -f qcow2 -b bot.qcow2 foo/mid.qcow2
$ ./qemu-img create -f qcow2 -b mid.qcow2 foo/top.qcow2
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find '[...]/foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
After this patch:
$ ./qemu-img commit -b mid.qcow2 foo/top.qcow2
Image committed.
$ ./qemu-img commit -b foo/mid.qcow2 foo/top.qcow2
qemu-img: Did not find 'foo/mid.qcow2' in the backing chain of 'foo/top.qcow2'
$ ./qemu-img commit -b $PWD/foo/mid.qcow2 foo/top.qcow2
Image committed.
With this change, bdrv_find_backing_image() must look at whether the
user has overridden a BDS's backing file. If so, it can no longer use
bs->backing_file, but must instead compare the given filename against
the backing node's filename directly.
Note that this changes the QAPI output for a node's backing_file. We
had very inconsistent output there (sometimes what the image header
said, sometimes the actual filename of the backing image). This
inconsistent output was effectively useless, so we have to decide one
way or the other. Considering that bs->backing_file usually at runtime
contained the path to the image relative to qemu's CWD (or absolute),
this patch changes QAPI's backing_file to always report the
bs->backing->bs->filename from now on. If you want to receive the image
header information, you have to refer to full-backing-filename.
This necessitates a change to iotest 228. The interesting information
it really wanted is the image header, and it can get that now, but it
has to use full-backing-filename instead of backing_file. Because of
this patch's changes to bs->backing_file's behavior, we also need some
reference output changes.
Along with the changes to bs->backing_file, stop updating
BDS.backing_format in bdrv_backing_attach() as well. This way,
ImageInfo's backing-filename and backing-filename-format fields will
represent what the image header says and nothing else.
iotest 245 changes in behavior: With the backing node no longer
overriding the parent node's backing_file string, you can now omit the
@backing option when reopening a node with neither a default nor a
current backing file even if it used to have a backing node at some
point.
273 also changes: The base image is opened without a format layer, so
ImageInfo.backing-filename-format used to report "file" for the base
image's overlay after blockdev-snapshot. However, the image header
never says "file" anywhere, so it now reports $IMGFMT.
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-08-01 18:34:11 +00:00
|
|
|
|
2013-05-25 03:09:44 +00:00
|
|
|
info->backing_filename = g_strdup(backing_filename);
|
|
|
|
|
info->has_backing_filename = true;
|
2019-02-01 19:29:15 +00:00
|
|
|
backing_filename2 = bdrv_get_full_backing_filename(bs, NULL);
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2015-12-14 19:55:13 +00:00
|
|
|
/* Always report the full_backing_filename if present, even if it's the
|
|
|
|
|
* same as backing_filename. That they are same is useful info. */
|
|
|
|
|
if (backing_filename2) {
|
|
|
|
|
info->full_backing_filename = g_strdup(backing_filename2);
|
2013-05-25 03:09:44 +00:00
|
|
|
info->has_full_backing_filename = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bs->backing_format[0]) {
|
|
|
|
|
info->backing_filename_format = g_strdup(bs->backing_format);
|
|
|
|
|
info->has_backing_filename_format = true;
|
|
|
|
|
}
|
2015-01-22 13:03:27 +00:00
|
|
|
g_free(backing_filename2);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
2013-06-06 04:27:58 +00:00
|
|
|
|
|
|
|
|
ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err);
|
|
|
|
|
switch (ret) {
|
|
|
|
|
case 0:
|
|
|
|
|
if (info->snapshots) {
|
|
|
|
|
info->has_snapshots = true;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
/* recoverable error */
|
|
|
|
|
case -ENOMEDIUM:
|
|
|
|
|
case -ENOTSUP:
|
|
|
|
|
error_free(err);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
error_propagate(errp, err);
|
|
|
|
|
qapi_free_ImageInfo(info);
|
2015-12-23 10:48:23 +00:00
|
|
|
goto out;
|
2013-06-06 04:27:58 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*p_info = info;
|
2015-12-23 10:48:23 +00:00
|
|
|
|
|
|
|
|
out:
|
|
|
|
|
aio_context_release(bdrv_get_aio_context(bs));
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2013-06-06 04:27:59 +00:00
|
|
|
/* @p_info will be set only on success. */
|
2014-10-07 11:59:23 +00:00
|
|
|
static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info,
|
|
|
|
|
Error **errp)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
|
|
|
|
BlockInfo *info = g_malloc0(sizeof(*info));
|
2014-10-07 11:59:23 +00:00
|
|
|
BlockDriverState *bs = blk_bs(blk);
|
2017-07-11 11:27:38 +00:00
|
|
|
char *qdev;
|
|
|
|
|
|
2017-07-18 15:24:05 +00:00
|
|
|
/* Skip automatically inserted nodes that the user isn't aware of */
|
2019-06-12 16:23:25 +00:00
|
|
|
bs = bdrv_skip_implicit_filters(bs);
|
2017-07-18 15:24:05 +00:00
|
|
|
|
2014-10-07 11:59:23 +00:00
|
|
|
info->device = g_strdup(blk_name(blk));
|
2013-05-25 03:09:44 +00:00
|
|
|
info->type = g_strdup("unknown");
|
2014-10-07 11:59:25 +00:00
|
|
|
info->locked = blk_dev_is_medium_locked(blk);
|
|
|
|
|
info->removable = blk_dev_has_removable_media(blk);
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2017-07-11 11:27:38 +00:00
|
|
|
qdev = blk_get_attached_dev_id(blk);
|
|
|
|
|
if (qdev && *qdev) {
|
|
|
|
|
info->has_qdev = true;
|
|
|
|
|
info->qdev = qdev;
|
|
|
|
|
} else {
|
|
|
|
|
g_free(qdev);
|
|
|
|
|
}
|
|
|
|
|
|
2016-01-29 19:49:13 +00:00
|
|
|
if (blk_dev_has_tray(blk)) {
|
2013-05-25 03:09:44 +00:00
|
|
|
info->has_tray_open = true;
|
2014-10-07 11:59:25 +00:00
|
|
|
info->tray_open = blk_dev_is_tray_open(blk);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2015-10-19 15:53:22 +00:00
|
|
|
if (blk_iostatus_is_enabled(blk)) {
|
2013-05-25 03:09:44 +00:00
|
|
|
info->has_io_status = true;
|
2015-10-19 15:53:22 +00:00
|
|
|
info->io_status = blk_iostatus(blk);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2015-10-19 15:53:29 +00:00
|
|
|
if (bs && bs->drv) {
|
2013-05-25 03:09:44 +00:00
|
|
|
info->has_inserted = true;
|
2020-01-20 08:50:49 +00:00
|
|
|
info->inserted = bdrv_block_device_info(blk, bs, false, errp);
|
2015-04-17 11:52:43 +00:00
|
|
|
if (info->inserted == NULL) {
|
|
|
|
|
goto err;
|
2013-06-06 04:27:59 +00:00
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
2013-06-06 04:27:59 +00:00
|
|
|
|
|
|
|
|
*p_info = info;
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
err:
|
|
|
|
|
qapi_free_BlockInfo(info);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2018-03-09 16:52:12 +00:00
|
|
|
static uint64List *uint64_list(uint64_t *list, int size)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
uint64List *out_list = NULL;
|
2021-01-13 22:10:12 +00:00
|
|
|
uint64List **tail = &out_list;
|
2018-03-09 16:52:12 +00:00
|
|
|
|
|
|
|
|
for (i = 0; i < size; i++) {
|
2021-01-13 22:10:12 +00:00
|
|
|
QAPI_LIST_APPEND(tail, list[i]);
|
2018-03-09 16:52:12 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return out_list;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void bdrv_latency_histogram_stats(BlockLatencyHistogram *hist,
|
|
|
|
|
bool *not_null,
|
|
|
|
|
BlockLatencyHistogramInfo **info)
|
|
|
|
|
{
|
|
|
|
|
*not_null = hist->bins != NULL;
|
|
|
|
|
if (*not_null) {
|
|
|
|
|
*info = g_new0(BlockLatencyHistogramInfo, 1);
|
|
|
|
|
|
|
|
|
|
(*info)->boundaries = uint64_list(hist->boundaries, hist->nbins - 1);
|
|
|
|
|
(*info)->bins = uint64_list(hist->bins, hist->nbins);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk)
|
2016-02-26 18:02:30 +00:00
|
|
|
{
|
|
|
|
|
BlockAcctStats *stats = blk_get_stats(blk);
|
|
|
|
|
BlockAcctTimedStats *ts = NULL;
|
|
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ];
|
|
|
|
|
ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->unmap_bytes = stats->nr_bytes[BLOCK_ACCT_UNMAP];
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ];
|
|
|
|
|
ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->unmap_operations = stats->nr_ops[BLOCK_ACCT_UNMAP];
|
2016-02-26 18:02:30 +00:00
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ];
|
|
|
|
|
ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE];
|
|
|
|
|
ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->failed_unmap_operations = stats->failed_ops[BLOCK_ACCT_UNMAP];
|
2016-02-26 18:02:30 +00:00
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ];
|
|
|
|
|
ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE];
|
|
|
|
|
ds->invalid_flush_operations =
|
2016-02-26 18:02:30 +00:00
|
|
|
stats->invalid_ops[BLOCK_ACCT_FLUSH];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->invalid_unmap_operations = stats->invalid_ops[BLOCK_ACCT_UNMAP];
|
2016-02-26 18:02:30 +00:00
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->rd_merged = stats->merged[BLOCK_ACCT_READ];
|
|
|
|
|
ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->unmap_merged = stats->merged[BLOCK_ACCT_UNMAP];
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH];
|
|
|
|
|
ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE];
|
|
|
|
|
ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ];
|
|
|
|
|
ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH];
|
2019-09-23 12:17:30 +00:00
|
|
|
ds->unmap_total_time_ns = stats->total_time_ns[BLOCK_ACCT_UNMAP];
|
2016-02-26 18:02:30 +00:00
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->has_idle_time_ns = stats->last_access_time_ns > 0;
|
|
|
|
|
if (ds->has_idle_time_ns) {
|
|
|
|
|
ds->idle_time_ns = block_acct_idle_time_ns(stats);
|
2016-02-26 18:02:30 +00:00
|
|
|
}
|
|
|
|
|
|
2016-03-02 17:31:09 +00:00
|
|
|
ds->account_invalid = stats->account_invalid;
|
|
|
|
|
ds->account_failed = stats->account_failed;
|
2016-02-26 18:02:30 +00:00
|
|
|
|
|
|
|
|
while ((ts = block_acct_interval_next(stats, ts))) {
|
|
|
|
|
BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats));
|
|
|
|
|
|
|
|
|
|
TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ];
|
|
|
|
|
TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE];
|
|
|
|
|
TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH];
|
|
|
|
|
|
|
|
|
|
dev_stats->interval_length = ts->interval_length;
|
|
|
|
|
|
|
|
|
|
dev_stats->min_rd_latency_ns = timed_average_min(rd);
|
|
|
|
|
dev_stats->max_rd_latency_ns = timed_average_max(rd);
|
|
|
|
|
dev_stats->avg_rd_latency_ns = timed_average_avg(rd);
|
|
|
|
|
|
|
|
|
|
dev_stats->min_wr_latency_ns = timed_average_min(wr);
|
|
|
|
|
dev_stats->max_wr_latency_ns = timed_average_max(wr);
|
|
|
|
|
dev_stats->avg_wr_latency_ns = timed_average_avg(wr);
|
|
|
|
|
|
|
|
|
|
dev_stats->min_flush_latency_ns = timed_average_min(fl);
|
|
|
|
|
dev_stats->max_flush_latency_ns = timed_average_max(fl);
|
|
|
|
|
dev_stats->avg_flush_latency_ns = timed_average_avg(fl);
|
|
|
|
|
|
|
|
|
|
dev_stats->avg_rd_queue_depth =
|
|
|
|
|
block_acct_queue_depth(ts, BLOCK_ACCT_READ);
|
|
|
|
|
dev_stats->avg_wr_queue_depth =
|
|
|
|
|
block_acct_queue_depth(ts, BLOCK_ACCT_WRITE);
|
2020-11-13 01:13:37 +00:00
|
|
|
|
|
|
|
|
QAPI_LIST_PREPEND(ds->timed_stats, dev_stats);
|
2016-02-26 18:02:30 +00:00
|
|
|
}
|
2018-03-09 16:52:12 +00:00
|
|
|
|
|
|
|
|
bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_READ],
|
2019-03-05 12:53:17 +00:00
|
|
|
&ds->has_rd_latency_histogram,
|
|
|
|
|
&ds->rd_latency_histogram);
|
2018-03-09 16:52:12 +00:00
|
|
|
bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_WRITE],
|
2019-03-05 12:53:17 +00:00
|
|
|
&ds->has_wr_latency_histogram,
|
|
|
|
|
&ds->wr_latency_histogram);
|
2018-03-09 16:52:12 +00:00
|
|
|
bdrv_latency_histogram_stats(&stats->latency_histogram[BLOCK_ACCT_FLUSH],
|
2019-03-05 12:53:17 +00:00
|
|
|
&ds->has_flush_latency_histogram,
|
|
|
|
|
&ds->flush_latency_histogram);
|
2016-02-26 18:02:30 +00:00
|
|
|
}
|
|
|
|
|
|
2017-07-18 15:24:05 +00:00
|
|
|
static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs,
|
|
|
|
|
bool blk_level)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
2019-11-28 08:49:22 +00:00
|
|
|
BdrvChild *parent_child;
|
2019-06-12 16:23:25 +00:00
|
|
|
BlockDriverState *filter_or_cow_bs;
|
2017-01-15 08:01:14 +00:00
|
|
|
BlockStats *s = NULL;
|
|
|
|
|
|
|
|
|
|
s = g_malloc0(sizeof(*s));
|
|
|
|
|
s->stats = g_malloc0(sizeof(*s->stats));
|
|
|
|
|
|
|
|
|
|
if (!bs) {
|
|
|
|
|
return s;
|
|
|
|
|
}
|
|
|
|
|
|
2017-07-18 15:24:05 +00:00
|
|
|
/* Skip automatically inserted nodes that the user isn't aware of in
|
|
|
|
|
* a BlockBackend-level command. Stay at the exact node for a node-level
|
|
|
|
|
* command. */
|
2019-06-12 16:23:25 +00:00
|
|
|
if (blk_level) {
|
|
|
|
|
bs = bdrv_skip_implicit_filters(bs);
|
2017-07-18 15:24:05 +00:00
|
|
|
}
|
|
|
|
|
|
2014-10-31 03:32:56 +00:00
|
|
|
if (bdrv_get_node_name(bs)[0]) {
|
|
|
|
|
s->has_node_name = true;
|
|
|
|
|
s->node_name = g_strdup(bdrv_get_node_name(bs));
|
|
|
|
|
}
|
|
|
|
|
|
2017-06-05 12:39:00 +00:00
|
|
|
s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset);
|
2015-10-19 15:53:20 +00:00
|
|
|
|
2019-09-23 12:17:37 +00:00
|
|
|
s->driver_specific = bdrv_get_specific_stats(bs);
|
|
|
|
|
if (s->driver_specific) {
|
|
|
|
|
s->has_driver_specific = true;
|
|
|
|
|
}
|
|
|
|
|
|
2019-11-28 08:49:22 +00:00
|
|
|
parent_child = bdrv_primary_child(bs);
|
|
|
|
|
if (!parent_child ||
|
|
|
|
|
!(parent_child->role & (BDRV_CHILD_DATA | BDRV_CHILD_FILTERED)))
|
|
|
|
|
{
|
|
|
|
|
BdrvChild *c;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Look for a unique data-storing child. We do not need to look for
|
|
|
|
|
* filtered children, as there would be only one and it would have been
|
|
|
|
|
* the primary child.
|
|
|
|
|
*/
|
|
|
|
|
parent_child = NULL;
|
|
|
|
|
QLIST_FOREACH(c, &bs->children, next) {
|
|
|
|
|
if (c->role & BDRV_CHILD_DATA) {
|
|
|
|
|
if (parent_child) {
|
|
|
|
|
/*
|
|
|
|
|
* There are multiple data-storing children and we cannot
|
|
|
|
|
* choose between them.
|
|
|
|
|
*/
|
|
|
|
|
parent_child = NULL;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
parent_child = c;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (parent_child) {
|
2013-05-25 03:09:44 +00:00
|
|
|
s->has_parent = true;
|
2019-11-28 08:49:22 +00:00
|
|
|
s->parent = bdrv_query_bds_stats(parent_child->bs, blk_level);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2019-06-12 16:23:25 +00:00
|
|
|
filter_or_cow_bs = bdrv_filter_or_cow_bs(bs);
|
|
|
|
|
if (blk_level && filter_or_cow_bs) {
|
|
|
|
|
/*
|
|
|
|
|
* Put any filtered or COW child here (for backwards
|
|
|
|
|
* compatibility to when we put bs0->backing here, which might
|
|
|
|
|
* be either)
|
|
|
|
|
*/
|
2014-01-23 02:03:26 +00:00
|
|
|
s->has_backing = true;
|
2019-06-12 16:23:25 +00:00
|
|
|
s->backing = bdrv_query_bds_stats(filter_or_cow_bs, blk_level);
|
2014-01-23 02:03:26 +00:00
|
|
|
}
|
|
|
|
|
|
2017-01-15 08:01:14 +00:00
|
|
|
return s;
|
2016-02-26 20:03:01 +00:00
|
|
|
}
|
|
|
|
|
|
2013-05-25 03:09:44 +00:00
|
|
|
BlockInfoList *qmp_query_block(Error **errp)
|
|
|
|
|
{
|
|
|
|
|
BlockInfoList *head = NULL, **p_next = &head;
|
2014-10-07 11:59:23 +00:00
|
|
|
BlockBackend *blk;
|
2013-06-06 04:27:59 +00:00
|
|
|
Error *local_err = NULL;
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2017-07-11 11:04:28 +00:00
|
|
|
for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) {
|
|
|
|
|
BlockInfoList *info;
|
|
|
|
|
|
2017-07-11 12:00:57 +00:00
|
|
|
if (!*blk_name(blk) && !blk_get_attached_dev(blk)) {
|
2017-07-11 11:04:28 +00:00
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
info = g_malloc0(sizeof(*info));
|
2014-10-07 11:59:23 +00:00
|
|
|
bdrv_query_info(blk, &info->value, &local_err);
|
2014-01-30 14:07:28 +00:00
|
|
|
if (local_err) {
|
2013-06-06 04:27:59 +00:00
|
|
|
error_propagate(errp, local_err);
|
2015-11-20 12:53:35 +00:00
|
|
|
g_free(info);
|
|
|
|
|
qapi_free_BlockInfoList(head);
|
|
|
|
|
return NULL;
|
2013-06-06 04:27:59 +00:00
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
|
|
|
|
|
*p_next = info;
|
|
|
|
|
p_next = &info->next;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return head;
|
|
|
|
|
}
|
|
|
|
|
|
2014-10-31 03:32:57 +00:00
|
|
|
BlockStatsList *qmp_query_blockstats(bool has_query_nodes,
|
|
|
|
|
bool query_nodes,
|
|
|
|
|
Error **errp)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
2021-01-13 22:10:12 +00:00
|
|
|
BlockStatsList *head = NULL, **tail = &head;
|
2017-01-15 08:01:15 +00:00
|
|
|
BlockBackend *blk;
|
|
|
|
|
BlockDriverState *bs;
|
2013-05-25 03:09:44 +00:00
|
|
|
|
2014-10-31 03:32:57 +00:00
|
|
|
/* Just to be safe if query_nodes is not always initialized */
|
2017-01-15 08:01:15 +00:00
|
|
|
if (has_query_nodes && query_nodes) {
|
|
|
|
|
for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) {
|
|
|
|
|
AioContext *ctx = bdrv_get_aio_context(bs);
|
2014-06-17 06:32:05 +00:00
|
|
|
|
2017-01-15 08:01:15 +00:00
|
|
|
aio_context_acquire(ctx);
|
2021-01-13 22:10:12 +00:00
|
|
|
QAPI_LIST_APPEND(tail, bdrv_query_bds_stats(bs, false));
|
2017-01-15 08:01:15 +00:00
|
|
|
aio_context_release(ctx);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
2018-07-27 14:09:25 +00:00
|
|
|
for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) {
|
2017-01-15 08:01:15 +00:00
|
|
|
AioContext *ctx = blk_get_aio_context(blk);
|
|
|
|
|
BlockStats *s;
|
2018-07-27 14:07:07 +00:00
|
|
|
char *qdev;
|
2017-01-15 08:01:15 +00:00
|
|
|
|
2018-07-27 14:09:25 +00:00
|
|
|
if (!*blk_name(blk) && !blk_get_attached_dev(blk)) {
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
2017-01-15 08:01:15 +00:00
|
|
|
aio_context_acquire(ctx);
|
|
|
|
|
s = bdrv_query_bds_stats(blk_bs(blk), true);
|
|
|
|
|
s->has_device = true;
|
|
|
|
|
s->device = g_strdup(blk_name(blk));
|
2018-07-27 14:07:07 +00:00
|
|
|
|
|
|
|
|
qdev = blk_get_attached_dev_id(blk);
|
|
|
|
|
if (qdev && *qdev) {
|
|
|
|
|
s->has_qdev = true;
|
|
|
|
|
s->qdev = qdev;
|
|
|
|
|
} else {
|
|
|
|
|
g_free(qdev);
|
|
|
|
|
}
|
|
|
|
|
|
2017-01-15 08:01:15 +00:00
|
|
|
bdrv_query_blk_stats(s->stats, blk);
|
|
|
|
|
aio_context_release(ctx);
|
|
|
|
|
|
2021-01-13 22:10:12 +00:00
|
|
|
QAPI_LIST_APPEND(tail, s);
|
2017-01-15 08:01:15 +00:00
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return head;
|
|
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
void bdrv_snapshot_dump(QEMUSnapshotInfo *sn)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
2019-04-17 17:11:01 +00:00
|
|
|
char date_buf[128], clock_buf[128];
|
2020-10-03 17:13:08 +00:00
|
|
|
char icount_buf[128] = {0};
|
2013-05-25 03:09:44 +00:00
|
|
|
struct tm tm;
|
|
|
|
|
time_t ti;
|
|
|
|
|
int64_t secs;
|
2019-04-17 17:11:01 +00:00
|
|
|
char *sizing = NULL;
|
2013-05-25 03:09:44 +00:00
|
|
|
|
|
|
|
|
if (!sn) {
|
2021-02-02 15:59:11 +00:00
|
|
|
qemu_printf("%-10s%-17s%8s%20s%13s%11s",
|
2020-10-03 17:13:08 +00:00
|
|
|
"ID", "TAG", "VM SIZE", "DATE", "VM CLOCK", "ICOUNT");
|
2013-05-25 03:09:44 +00:00
|
|
|
} else {
|
|
|
|
|
ti = sn->date_sec;
|
|
|
|
|
localtime_r(&ti, &tm);
|
|
|
|
|
strftime(date_buf, sizeof(date_buf),
|
|
|
|
|
"%Y-%m-%d %H:%M:%S", &tm);
|
|
|
|
|
secs = sn->vm_clock_nsec / 1000000000;
|
|
|
|
|
snprintf(clock_buf, sizeof(clock_buf),
|
|
|
|
|
"%02d:%02d:%02d.%03d",
|
|
|
|
|
(int)(secs / 3600),
|
|
|
|
|
(int)((secs / 60) % 60),
|
|
|
|
|
(int)(secs % 60),
|
|
|
|
|
(int)((sn->vm_clock_nsec / 1000000) % 1000));
|
2019-04-17 17:11:01 +00:00
|
|
|
sizing = size_to_str(sn->vm_state_size);
|
2020-10-03 17:13:08 +00:00
|
|
|
if (sn->icount != -1ULL) {
|
|
|
|
|
snprintf(icount_buf, sizeof(icount_buf),
|
|
|
|
|
"%"PRId64, sn->icount);
|
|
|
|
|
}
|
2021-02-02 15:59:11 +00:00
|
|
|
qemu_printf("%-9s %-16s %8s%20s%13s%11s",
|
2019-04-17 19:17:55 +00:00
|
|
|
sn->id_str, sn->name,
|
2019-04-17 17:11:01 +00:00
|
|
|
sizing,
|
2019-04-17 19:17:55 +00:00
|
|
|
date_buf,
|
2020-10-03 17:13:08 +00:00
|
|
|
clock_buf,
|
|
|
|
|
icount_buf);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
2019-04-17 17:11:01 +00:00
|
|
|
g_free(sizing);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
static void dump_qdict(int indentation, QDict *dict);
|
|
|
|
|
static void dump_qlist(int indentation, QList *list);
|
2013-10-09 08:46:17 +00:00
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
static void dump_qobject(int comp_indent, QObject *obj)
|
2013-10-09 08:46:17 +00:00
|
|
|
{
|
|
|
|
|
switch (qobject_type(obj)) {
|
2017-06-07 16:35:58 +00:00
|
|
|
case QTYPE_QNUM: {
|
2018-02-24 15:40:29 +00:00
|
|
|
QNum *value = qobject_to(QNum, obj);
|
2017-06-07 16:35:58 +00:00
|
|
|
char *tmp = qnum_to_string(value);
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("%s", tmp);
|
2017-06-07 16:35:58 +00:00
|
|
|
g_free(tmp);
|
2013-10-09 08:46:17 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case QTYPE_QSTRING: {
|
2018-02-24 15:40:29 +00:00
|
|
|
QString *value = qobject_to(QString, obj);
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("%s", qstring_get_str(value));
|
2013-10-09 08:46:17 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case QTYPE_QDICT: {
|
2018-02-24 15:40:29 +00:00
|
|
|
QDict *value = qobject_to(QDict, obj);
|
2019-04-17 19:17:55 +00:00
|
|
|
dump_qdict(comp_indent, value);
|
2013-10-09 08:46:17 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case QTYPE_QLIST: {
|
2018-02-24 15:40:29 +00:00
|
|
|
QList *value = qobject_to(QList, obj);
|
2019-04-17 19:17:55 +00:00
|
|
|
dump_qlist(comp_indent, value);
|
2013-10-09 08:46:17 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
case QTYPE_QBOOL: {
|
2018-02-24 15:40:29 +00:00
|
|
|
QBool *value = qobject_to(QBool, obj);
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("%s", qbool_get_bool(value) ? "true" : "false");
|
2013-10-09 08:46:17 +00:00
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
default:
|
|
|
|
|
abort();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
static void dump_qlist(int indentation, QList *list)
|
2013-10-09 08:46:17 +00:00
|
|
|
{
|
|
|
|
|
const QListEntry *entry;
|
|
|
|
|
int i = 0;
|
|
|
|
|
|
|
|
|
|
for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) {
|
2015-12-02 05:20:46 +00:00
|
|
|
QType type = qobject_type(entry->value);
|
2013-10-09 08:46:17 +00:00
|
|
|
bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST);
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("%*s[%i]:%c", indentation * 4, "", i,
|
|
|
|
|
composite ? '\n' : ' ');
|
|
|
|
|
dump_qobject(indentation + 1, entry->value);
|
2013-10-09 08:46:17 +00:00
|
|
|
if (!composite) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("\n");
|
2013-10-09 08:46:17 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
static void dump_qdict(int indentation, QDict *dict)
|
2013-10-09 08:46:17 +00:00
|
|
|
{
|
|
|
|
|
const QDictEntry *entry;
|
|
|
|
|
|
|
|
|
|
for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) {
|
2015-12-02 05:20:46 +00:00
|
|
|
QType type = qobject_type(entry->value);
|
2013-10-09 08:46:17 +00:00
|
|
|
bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST);
|
2016-03-09 05:56:37 +00:00
|
|
|
char *key = g_malloc(strlen(entry->key) + 1);
|
2013-10-09 08:46:17 +00:00
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
/* replace dashes with spaces in key (variable) names */
|
|
|
|
|
for (i = 0; entry->key[i]; i++) {
|
|
|
|
|
key[i] = entry->key[i] == '-' ? ' ' : entry->key[i];
|
|
|
|
|
}
|
|
|
|
|
key[i] = 0;
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("%*s%s:%c", indentation * 4, "", key,
|
|
|
|
|
composite ? '\n' : ' ');
|
|
|
|
|
dump_qobject(indentation + 1, entry->value);
|
2013-10-09 08:46:17 +00:00
|
|
|
if (!composite) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("\n");
|
2013-10-09 08:46:17 +00:00
|
|
|
}
|
2016-03-09 05:56:37 +00:00
|
|
|
g_free(key);
|
2013-10-09 08:46:17 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
void bdrv_image_info_specific_dump(ImageInfoSpecific *info_spec)
|
2013-10-09 08:46:17 +00:00
|
|
|
{
|
|
|
|
|
QObject *obj, *data;
|
2016-09-30 14:45:28 +00:00
|
|
|
Visitor *v = qobject_output_visitor_new(&obj);
|
2013-10-09 08:46:17 +00:00
|
|
|
|
qapi: Add new visit_complete() function
Making each output visitor provide its own output collection
function was the only remaining reason for exposing visitor
sub-types to the rest of the code base. Add a polymorphic
visit_complete() function which is a no-op for input visitors,
and which populates an opaque pointer for output visitors. For
maximum type-safety, also add a parameter to the output visitor
constructors with a type-correct version of the output pointer,
and assert that the two uses match.
This approach was considered superior to either passing the
output parameter only during construction (action at a distance
during visit_free() feels awkward) or only during visit_complete()
(defeating type safety makes it easier to use incorrectly).
Most callers were function-local, and therefore a mechanical
conversion; the testsuite was a bit trickier, but the previous
cleanup patch minimized the churn here.
The visit_complete() function may be called at most once; doing
so lets us use transfer semantics rather than duplication or
ref-count semantics to get the just-built output back to the
caller, even though it means our behavior is not idempotent.
Generated code is simplified as follows for events:
|@@ -26,7 +26,7 @@ void qapi_event_send_acpi_device_ost(ACP
| QDict *qmp;
| Error *err = NULL;
| QMPEventFuncEmit emit;
|- QmpOutputVisitor *qov;
|+ QObject *obj;
| Visitor *v;
| q_obj_ACPI_DEVICE_OST_arg param = {
| info
|@@ -39,8 +39,7 @@ void qapi_event_send_acpi_device_ost(ACP
|
| qmp = qmp_event_build_dict("ACPI_DEVICE_OST");
|
|- qov = qmp_output_visitor_new();
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(&obj);
|
| visit_start_struct(v, "ACPI_DEVICE_OST", NULL, 0, &err);
| if (err) {
|@@ -55,7 +54,8 @@ void qapi_event_send_acpi_device_ost(ACP
| goto out;
| }
|
|- qdict_put_obj(qmp, "data", qmp_output_get_qobject(qov));
|+ visit_complete(v, &obj);
|+ qdict_put_obj(qmp, "data", obj);
| emit(QAPI_EVENT_ACPI_DEVICE_OST, qmp, &err);
and for commands:
| {
| Error *err = NULL;
|- QmpOutputVisitor *qov = qmp_output_visitor_new();
| Visitor *v;
|
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(ret_out);
| visit_type_AddfdInfo(v, "unused", &ret_in, &err);
|- if (err) {
|- goto out;
|+ if (!err) {
|+ visit_complete(v, ret_out);
| }
|- *ret_out = qmp_output_get_qobject(qov);
|-
|-out:
| error_propagate(errp, err);
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-13-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-09 16:48:43 +00:00
|
|
|
visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort);
|
|
|
|
|
visit_complete(v, &obj);
|
2018-02-24 15:40:29 +00:00
|
|
|
data = qdict_get(qobject_to(QDict, obj), "data");
|
2019-04-17 19:17:55 +00:00
|
|
|
dump_qobject(1, data);
|
2018-04-19 15:01:43 +00:00
|
|
|
qobject_unref(obj);
|
qapi: Add new visit_complete() function
Making each output visitor provide its own output collection
function was the only remaining reason for exposing visitor
sub-types to the rest of the code base. Add a polymorphic
visit_complete() function which is a no-op for input visitors,
and which populates an opaque pointer for output visitors. For
maximum type-safety, also add a parameter to the output visitor
constructors with a type-correct version of the output pointer,
and assert that the two uses match.
This approach was considered superior to either passing the
output parameter only during construction (action at a distance
during visit_free() feels awkward) or only during visit_complete()
(defeating type safety makes it easier to use incorrectly).
Most callers were function-local, and therefore a mechanical
conversion; the testsuite was a bit trickier, but the previous
cleanup patch minimized the churn here.
The visit_complete() function may be called at most once; doing
so lets us use transfer semantics rather than duplication or
ref-count semantics to get the just-built output back to the
caller, even though it means our behavior is not idempotent.
Generated code is simplified as follows for events:
|@@ -26,7 +26,7 @@ void qapi_event_send_acpi_device_ost(ACP
| QDict *qmp;
| Error *err = NULL;
| QMPEventFuncEmit emit;
|- QmpOutputVisitor *qov;
|+ QObject *obj;
| Visitor *v;
| q_obj_ACPI_DEVICE_OST_arg param = {
| info
|@@ -39,8 +39,7 @@ void qapi_event_send_acpi_device_ost(ACP
|
| qmp = qmp_event_build_dict("ACPI_DEVICE_OST");
|
|- qov = qmp_output_visitor_new();
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(&obj);
|
| visit_start_struct(v, "ACPI_DEVICE_OST", NULL, 0, &err);
| if (err) {
|@@ -55,7 +54,8 @@ void qapi_event_send_acpi_device_ost(ACP
| goto out;
| }
|
|- qdict_put_obj(qmp, "data", qmp_output_get_qobject(qov));
|+ visit_complete(v, &obj);
|+ qdict_put_obj(qmp, "data", obj);
| emit(QAPI_EVENT_ACPI_DEVICE_OST, qmp, &err);
and for commands:
| {
| Error *err = NULL;
|- QmpOutputVisitor *qov = qmp_output_visitor_new();
| Visitor *v;
|
|- v = qmp_output_get_visitor(qov);
|+ v = qmp_output_visitor_new(ret_out);
| visit_type_AddfdInfo(v, "unused", &ret_in, &err);
|- if (err) {
|- goto out;
|+ if (!err) {
|+ visit_complete(v, ret_out);
| }
|- *ret_out = qmp_output_get_qobject(qov);
|-
|-out:
| error_propagate(errp, err);
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-13-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-09 16:48:43 +00:00
|
|
|
visit_free(v);
|
2013-10-09 08:46:17 +00:00
|
|
|
}
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
void bdrv_image_info_dump(ImageInfo *info)
|
2013-05-25 03:09:44 +00:00
|
|
|
{
|
2019-04-17 17:11:01 +00:00
|
|
|
char *size_buf, *dsize_buf;
|
2013-05-25 03:09:44 +00:00
|
|
|
if (!info->has_actual_size) {
|
2019-04-17 17:11:01 +00:00
|
|
|
dsize_buf = g_strdup("unavailable");
|
2013-05-25 03:09:44 +00:00
|
|
|
} else {
|
2019-04-17 17:11:01 +00:00
|
|
|
dsize_buf = size_to_str(info->actual_size);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
2019-04-17 17:11:01 +00:00
|
|
|
size_buf = size_to_str(info->virtual_size);
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("image: %s\n"
|
|
|
|
|
"file format: %s\n"
|
|
|
|
|
"virtual size: %s (%" PRId64 " bytes)\n"
|
|
|
|
|
"disk size: %s\n",
|
|
|
|
|
info->filename, info->format, size_buf,
|
|
|
|
|
info->virtual_size,
|
|
|
|
|
dsize_buf);
|
2019-04-17 17:11:01 +00:00
|
|
|
g_free(size_buf);
|
|
|
|
|
g_free(dsize_buf);
|
2013-05-25 03:09:44 +00:00
|
|
|
|
|
|
|
|
if (info->has_encrypted && info->encrypted) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("encrypted: yes\n");
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (info->has_cluster_size) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("cluster_size: %" PRId64 "\n",
|
|
|
|
|
info->cluster_size);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (info->has_dirty_flag && info->dirty_flag) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("cleanly shut down: no\n");
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (info->has_backing_filename) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("backing file: %s", info->backing_filename);
|
2015-12-14 19:55:14 +00:00
|
|
|
if (!info->has_full_backing_filename) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf(" (cannot determine actual path)");
|
2015-12-14 19:55:14 +00:00
|
|
|
} else if (strcmp(info->backing_filename,
|
|
|
|
|
info->full_backing_filename) != 0) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf(" (actual path: %s)", info->full_backing_filename);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("\n");
|
2013-05-25 03:09:44 +00:00
|
|
|
if (info->has_backing_filename_format) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("backing file format: %s\n",
|
|
|
|
|
info->backing_filename_format);
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (info->has_snapshots) {
|
|
|
|
|
SnapshotInfoList *elem;
|
|
|
|
|
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("Snapshot list:\n");
|
|
|
|
|
bdrv_snapshot_dump(NULL);
|
|
|
|
|
qemu_printf("\n");
|
2013-05-25 03:09:44 +00:00
|
|
|
|
|
|
|
|
/* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but
|
|
|
|
|
* we convert to the block layer's native QEMUSnapshotInfo for now.
|
|
|
|
|
*/
|
|
|
|
|
for (elem = info->snapshots; elem; elem = elem->next) {
|
|
|
|
|
QEMUSnapshotInfo sn = {
|
|
|
|
|
.vm_state_size = elem->value->vm_state_size,
|
|
|
|
|
.date_sec = elem->value->date_sec,
|
|
|
|
|
.date_nsec = elem->value->date_nsec,
|
|
|
|
|
.vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL +
|
|
|
|
|
elem->value->vm_clock_nsec,
|
2020-10-03 17:13:08 +00:00
|
|
|
.icount = elem->value->has_icount ?
|
|
|
|
|
elem->value->icount : -1ULL,
|
2013-05-25 03:09:44 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
|
pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id);
|
|
|
|
|
pstrcpy(sn.name, sizeof(sn.name), elem->value->name);
|
2019-04-17 19:17:55 +00:00
|
|
|
bdrv_snapshot_dump(&sn);
|
|
|
|
|
qemu_printf("\n");
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|
|
|
|
|
}
|
2013-10-09 08:46:17 +00:00
|
|
|
|
|
|
|
|
if (info->has_format_specific) {
|
2019-04-17 19:17:55 +00:00
|
|
|
qemu_printf("Format specific information:\n");
|
|
|
|
|
bdrv_image_info_specific_dump(info->format_specific);
|
2013-10-09 08:46:17 +00:00
|
|
|
}
|
2013-05-25 03:09:44 +00:00
|
|
|
}
|