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dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=virtuozzo.com; From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, eblake@redhat.com, fam@euphon.net, stefanha@redhat.com, mreitz@redhat.com, kwolf@redhat.com, vsementsov@virtuozzo.com, jsnow@redhat.com, den@openvz.org Subject: [PATCH v2 04/10] job: add .cancel handler for the driver Date: Fri, 5 Feb 2021 19:37:14 +0300 Message-Id: <20210205163720.887197-5-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210205163720.887197-1-vsementsov@virtuozzo.com> References: <20210205163720.887197-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: quoted-printable X-Originating-IP: [185.215.60.213] X-ClientProxiedBy: AM9P193CA0029.EURP193.PROD.OUTLOOK.COM (2603:10a6:20b:21e::34) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b163f2d0-37d5-41a0-6f54-08d8c9f45898 X-MS-TrafficTypeDiagnostic: AM6PR08MB4470: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:873; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.2.92; envelope-from=vsementsov@virtuozzo.com; helo=EUR02-VE1-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" To be used in mirror in the following commit to cancel in-flight io on target to not waste the time. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Eric Blake --- include/qemu/job.h | 5 +++++ job.c | 3 +++ 2 files changed, 8 insertions(+) diff --git a/include/qemu/job.h b/include/qemu/job.h index 32aabb1c60..efc6fa7544 100644 --- a/include/qemu/job.h +++ b/include/qemu/job.h @@ -251,6 +251,11 @@ struct JobDriver { */ void (*clean)(Job *job); =20 + /** + * If the callback is not NULL, it will be invoked in job_cancel_async + */ + void (*cancel)(Job *job); + =20 /** Called when the job is freed */ void (*free)(Job *job); diff --git a/job.c b/job.c index 3aaaebafe2..289edee143 100644 --- a/job.c +++ b/job.c @@ -715,6 +715,9 @@ static int job_finalize_single(Job *job) =20 static void job_cancel_async(Job *job, bool force) { + if (job->driver->cancel) { + job->driver->cancel(job); + } if (job->user_paused) { /* Do not call job_enter here, the caller will handle it. */ if (job->driver->user_resume) { --=20 2.29.2