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GET /api/patches/2197743/?format=api
{ "id": 2197743, "url": "http://patchwork.ozlabs.org/api/patches/2197743/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218132633.29748-21-hreitz@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260218132633.29748-21-hreitz@redhat.com>", "list_archive_url": null, "date": "2026-02-18T13:26:29", "name": "[v4,20/24] iotests/307: Test multi-thread export interface", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "825cb47cb3750aaa9b6d8421afac68d4f658a3b7", "submitter": { "id": 82279, "url": "http://patchwork.ozlabs.org/api/people/82279/?format=api", "name": "Hanna Czenczek", "email": "hreitz@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218132633.29748-21-hreitz@redhat.com/mbox/", "series": [ { "id": 492547, "url": "http://patchwork.ozlabs.org/api/series/492547/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492547", "date": "2026-02-18T13:26:09", "name": "export/fuse: Use coroutines and multi-threading", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/492547/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2197743/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2197743/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=fv90111k;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=URyUR9rx;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.043,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Test the QAPI interface for multi-threaded exports. None of our exports\ncurrently support multi-threading, so it's always an error in the end,\nbut we can still test the specific errors.\n\nSigned-off-by: Hanna Czenczek <hreitz@redhat.com>\n---\n tests/qemu-iotests/307 | 47 ++++++++++++++++++++++++++++++++++++++\n tests/qemu-iotests/307.out | 18 +++++++++++++++\n 2 files changed, 65 insertions(+)", "diff": "diff --git a/tests/qemu-iotests/307 b/tests/qemu-iotests/307\nindex b429b5aa50..f6ee3ebec0 100755\n--- a/tests/qemu-iotests/307\n+++ b/tests/qemu-iotests/307\n@@ -142,5 +142,52 @@ with iotests.FilePath('image') as img, \\\n vm.qmp_log('query-block-exports')\n iotests.qemu_nbd_list_log('-k', socket)\n \n+ iotests.log('\\n=== Using multi-thread with NBD ===')\n+\n+ # Actual multi-threading; (currently) not supported by NBD\n+ vm.qmp_log('block-export-add',\n+ id='export0',\n+ type='nbd',\n+ node_name='fmt',\n+ iothread=['iothread0', 'iothread1'])\n+\n+ # Should be treated the same way as actual multi-threading, even if there's\n+ # only a single thread\n+ vm.qmp_log('block-export-add',\n+ id='export0',\n+ type='nbd',\n+ node_name='fmt',\n+ iothread=['iothread0'])\n+\n+ iotests.log('\\n=== Empty thread list')\n+\n+ # Simply not allowed\n+ vm.qmp_log('block-export-add',\n+ id='export0',\n+ type='nbd',\n+ node_name='fmt',\n+ iothread=[])\n+\n+ iotests.log('\\n=== Non-existent thread name in list')\n+\n+ # Expect an error, even if NBD does not support multi-threading, because the\n+ # list is parsed before being passed to NBD\n+ vm.qmp_log('block-export-add',\n+ id='export0',\n+ type='nbd',\n+ node_name='fmt',\n+ iothread=['iothread0', 'nothread', 'iothread1'])\n+\n+ iotests.log('\\n=== Multi-thread with fixed-iothread')\n+\n+ # With multi-threading, there is no single context to give the BDS, so it is\n+ # just left where it is. fixed-iothread does not make sense then.\n+ vm.qmp_log('block-export-add',\n+ id='export0',\n+ type='nbd',\n+ node_name='fmt',\n+ iothread=['iothread0', 'iothread1'],\n+ fixed_iothread=True)\n+\n iotests.log('\\n=== Shut down QEMU ===')\n vm.shutdown()\ndiff --git a/tests/qemu-iotests/307.out b/tests/qemu-iotests/307.out\nindex f645f3315f..a9b37d3ac1 100644\n--- a/tests/qemu-iotests/307.out\n+++ b/tests/qemu-iotests/307.out\n@@ -134,4 +134,22 @@ read failed: Input/output error\n exports available: 0\n \n \n+=== Using multi-thread with NBD ===\n+{\"execute\": \"block-export-add\", \"arguments\": {\"id\": \"export0\", \"iothread\": [\"iothread0\", \"iothread1\"], \"node-name\": \"fmt\", \"type\": \"nbd\"}}\n+{\"error\": {\"class\": \"GenericError\", \"desc\": \"NBD export does not support multi-threading\"}}\n+{\"execute\": \"block-export-add\", \"arguments\": {\"id\": \"export0\", \"iothread\": [\"iothread0\"], \"node-name\": \"fmt\", \"type\": \"nbd\"}}\n+{\"error\": {\"class\": \"GenericError\", \"desc\": \"NBD export does not support multi-threading\"}}\n+\n+=== Empty thread list\n+{\"execute\": \"block-export-add\", \"arguments\": {\"id\": \"export0\", \"iothread\": [], \"node-name\": \"fmt\", \"type\": \"nbd\"}}\n+{\"error\": {\"class\": \"GenericError\", \"desc\": \"The set of I/O threads must not be empty\"}}\n+\n+=== Non-existent thread name in list\n+{\"execute\": \"block-export-add\", \"arguments\": {\"id\": \"export0\", \"iothread\": [\"iothread0\", \"nothread\", \"iothread1\"], \"node-name\": \"fmt\", \"type\": \"nbd\"}}\n+{\"error\": {\"class\": \"GenericError\", \"desc\": \"iothread \\\"nothread\\\" not found\"}}\n+\n+=== Multi-thread with fixed-iothread\n+{\"execute\": \"block-export-add\", \"arguments\": {\"fixed-iothread\": true, \"id\": \"export0\", \"iothread\": [\"iothread0\", \"iothread1\"], \"node-name\": \"fmt\", \"type\": \"nbd\"}}\n+{\"error\": {\"class\": \"GenericError\", \"desc\": \"Cannot use fixed-iothread for a multi-threaded export\"}}\n+\n === Shut down QEMU ===\n", "prefixes": [ "v4", "20/24" ] }