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Fri, 12 Feb 2021 15:16:39 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-526--585gfT9OFuw8rSwH9uFIA-1; Fri, 12 Feb 2021 15:16:32 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4AAE963AD2; Fri, 12 Feb 2021 20:16:31 +0000 (UTC) Received: from blue.redhat.com (ovpn-114-150.phx2.redhat.com [10.3.114.150]) by smtp.corp.redhat.com (Postfix) with ESMTP id E04266B8E5; Fri, 12 Feb 2021 20:16:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613160994; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CO+o1TEaSb7GV3Min+1FT7ANGUgrTFANiZySe6ig7m0=; b=S6VzJbAVmxfkcZGzCRpa7C1cByUDBycOXejoKBIEauC4jpXOQxEgGJgY5F634Z/NuJbI0M AMBSwrANoLfl4dr+XLhyRvlIuoPgahmrCFyorZh5oj7cYdwHnG4bzyRpRPR5xIBB6Qc+zf mKgZP+EiZNvTNX4R3Zj/5LAqlwY3OB4= X-MC-Unique: -585gfT9OFuw8rSwH9uFIA-1 From: Eric Blake To: qemu-devel@nongnu.org Subject: [PULL 08/14] job: add .cancel handler for the driver Date: Fri, 12 Feb 2021 14:16:13 -0600 Message-Id: <20210212201619.1388255-9-eblake@redhat.com> In-Reply-To: <20210212201619.1388255-1-eblake@redhat.com> References: <20210212201619.1388255-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eblake@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.569, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: , Cc: Vladimir Sementsov-Ogievskiy , John Snow , "open list:Block Jobs" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy 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 Message-Id: <20210205163720.887197-5-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake Signed-off-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 32aabb1c6000..efc6fa754498 100644 --- a/include/qemu/job.h +++ b/include/qemu/job.h @@ -251,6 +251,11 @@ struct JobDriver { */ void (*clean)(Job *job); + /** + * If the callback is not NULL, it will be invoked in job_cancel_async + */ + void (*cancel)(Job *job); + /** Called when the job is freed */ void (*free)(Job *job); diff --git a/job.c b/job.c index 3aaaebafe2c8..289edee14374 100644 --- a/job.c +++ b/job.c @@ -715,6 +715,9 @@ static int job_finalize_single(Job *job) 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 2.30.1