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qapi: add qom-path to BLOCK_IO_ERROR event

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We need something more reliable than "device" (which absent in modern
interfaces) and "node-name" (which may absent, and actually don't
specify the device, which is a source of error) to make a per-device
throttling for the event in the following commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20241002151806.592469-2-vsementsov@yandex-team.ru>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2024-10-02 18:18:05 +03:00 • committed by Kevin Wolf
parent 526c4a90c4
commit 7452162ade
2 changed files with 22 additions and 6 deletions
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7
qapi/block-core.json
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@ -5584,6 +5584,8 @@
#
# Emitted when a disk I/O error occurs
#
# @qom-path: path to the device object in the QOM tree (since 9.2)
#
# @device: device name. This is always present for compatibility
# reasons, but it can be empty ("") if the image does not have a
# device name associated.
@ -5614,7 +5616,8 @@
# .. qmp-example::
#
# <- { "event": "BLOCK_IO_ERROR",
# "data": { "device": "ide0-hd1",
# "data": { "qom-path": "/machine/unattached/device[0]",
# "device": "ide0-hd1",
# "node-name": "#block212",
# "operation": "write",
# "action": "stop",
@ -5622,7 +5625,7 @@
# "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
##
{ 'event': 'BLOCK_IO_ERROR',
'data': { 'device': 'str', '*node-name': 'str',
'data': { 'qom-path': 'str', 'device': 'str', '*node-name': 'str',
'operation': 'IoOperationType',
'action': 'BlockErrorAction', '*nospace': 'bool',
'reason': 'str' } }