qapi/block-core: deprecate some block-job- APIs

For change, pause, resume, complete, dismiss and finalize actions
corresponding job- and block-job commands are almost equal. The
difference is in find_block_job_locked() vs find_job_locked()
functions. What's different?

1. find_block_job_locked() checks whether the found job is a block-job.
   This is OK when moving to more generic API, no needs to document this
   change.

2. find_block_job_locked() reports DeviceNotActive on failure, when
   find_job_locked() reports GenericError. So, let's document this
   difference in deprecated.txt. Still, for dismiss and finalize errors
   are not documented at all, so be silent in deprecated.txt as well.

ACKed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-ID: <20250409084232.28201-3-vsementsov@yandex-team.ru>

2 files changed, 61 insertions, 0 deletions

diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
index 0538144..b0d3ae6 100644
--- a/docs/about/deprecated.rst
+++ b/docs/about/deprecated.rst
@@ -148,6 +148,37 @@ options are removed in favor of using explicit ``blockdev-create`` and
 ``blockdev-add`` calls. See :doc:`/interop/live-block-operations` for
 details.
 
+``block-job-pause`` (since 10.1)
+''''''''''''''''''''''''''''''''
+
+Use ``job-pause`` instead. The only difference is that ``job-pause``
+always reports GenericError on failure when ``block-job-pause`` reports
+DeviceNotActive when block-job is not found.
+
+``block-job-resume`` (since 10.1)
+'''''''''''''''''''''''''''''''''
+
+Use ``job-resume`` instead. The only difference is that ``job-resume``
+always reports GenericError on failure when ``block-job-resume`` reports
+DeviceNotActive when block-job is not found.
+
+``block-job-complete`` (since 10.1)
+'''''''''''''''''''''''''''''''''''
+
+Use ``job-complete`` instead. The only difference is that ``job-complete``
+always reports GenericError on failure when ``block-job-complete`` reports
+DeviceNotActive when block-job is not found.
+
+``block-job-dismiss`` (since 10.1)
+''''''''''''''''''''''''''''''''''
+
+Use ``job-dismiss`` instead.
+
+``block-job-finalize`` (since 10.1)
+'''''''''''''''''''''''''''''''''''
+
+Use ``job-finalize`` instead.
+
 ``query-migrationthreads`` (since 9.2)
 ''''''''''''''''''''''''''''''''''''''
 
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 6beab0d..2206122 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2969,6 +2969,11 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
+# Features:
+#
+# @deprecated: This command is deprecated.  Use @job-pause
+#     instead.
+#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -2976,6 +2981,7 @@
 # Since: 1.3
 ##
 { 'command': 'block-job-pause', 'data': { 'device': 'str' },
+  'features': ['deprecated'],
   'allow-preconfig': true }
 
 ##
@@ -2992,6 +2998,11 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
+# Features:
+#
+# @deprecated: This command is deprecated.  Use @job-resume
+#     instead.
+#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -2999,6 +3010,7 @@
 # Since: 1.3
 ##
 { 'command': 'block-job-resume', 'data': { 'device': 'str' },
+  'features': ['deprecated'],
   'allow-preconfig': true }
 
 ##
@@ -3026,6 +3038,11 @@
 #     the name of the parameter), but since QEMU 2.7 it can have other
 #     values.
 #
+# Features:
+#
+# @deprecated: This command is deprecated.  Use @job-complete
+#     instead.
+#
 # Errors:
 #     - If no background operation is active on this device,
 #       DeviceNotActive
@@ -3033,6 +3050,7 @@
 # Since: 1.3
 ##
 { 'command': 'block-job-complete', 'data': { 'device': 'str' },
+  'features': ['deprecated'],
   'allow-preconfig': true }
 
 ##
@@ -3053,9 +3071,15 @@
 #
 # @id: The job identifier.
 #
+# Features:
+#
+# @deprecated: This command is deprecated.  Use @job-dismiss
+#     instead.
+#
 # Since: 2.12
 ##
 { 'command': 'block-job-dismiss', 'data': { 'id': 'str' },
+  'features': ['deprecated'],
   'allow-preconfig': true }
 
 ##
@@ -3075,9 +3099,15 @@
 #
 # @id: The job identifier.
 #
+# Features:
+#
+# @deprecated: This command is deprecated.  Use @job-finalize
+#     instead.
+#
 # Since: 2.12
 ##
 { 'command': 'block-job-finalize', 'data': { 'id': 'str' },
+  'features': ['deprecated'],
   'allow-preconfig': true }
 
 ##