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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 3 Jul 2018 12:38:01 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w63Bc0j436241490 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 3 Jul 2018 11:38:00 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4F0B452050; Tue, 3 Jul 2018 14:38:26 +0100 (BST) Received: from marc-ibm.boeblingen.de.ibm.com (unknown [9.152.224.50]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 209595204E; Tue, 3 Jul 2018 14:38:26 +0100 (BST) From: Marc Hartmayer To: Date: Tue, 3 Jul 2018 13:37:35 +0200 In-Reply-To: <20180703113738.3425-1-mhartmay@linux.ibm.com> References: <20180703113738.3425-1-mhartmay@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18070311-0016-0000-0000-000001E2E0AD X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18070311-0017-0000-0000-000032373E48 Message-Id: <20180703113738.3425-4-mhartmay@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-07-03_04:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=780 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807030134 X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 207 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 03 Jul 2018 11:38:07 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 03 Jul 2018 11:38:07 +0000 (UTC) for IP:'148.163.158.5' DOMAIN:'mx0b-001b2d01.pphosted.com' HELO:'mx0a-001b2d01.pphosted.com' FROM:'mhartmay@linux.ibm.com' RCPT:'' X-RedHat-Spam-Score: -0.701 (RCVD_IN_DNSWL_LOW, SPF_PASS) 148.163.158.5 mx0b-001b2d01.pphosted.com 148.163.158.5 mx0b-001b2d01.pphosted.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.28 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-loop: libvir-list@redhat.com Cc: Erik Skultety Subject: [libvirt] [PATCH v2 3/6] virThreadPool: Prevent switching between zero and non-zero maxWorkers X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Tue, 03 Jul 2018 11:38:13 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" ...since maxWorkers=3D0 is only intended for virtlockd or virlogd which must not be multithreaded. Signed-off-by: Marc Hartmayer Reviewed-by: Boris Fiuczynski Reviewed-by: Bjoern Walk Reviewed-by: John Ferlan --- src/util/virthreadpool.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/util/virthreadpool.c b/src/util/virthreadpool.c index f18eafb35deb..e615c8c07c82 100644 --- a/src/util/virthreadpool.c +++ b/src/util/virthreadpool.c @@ -479,6 +479,14 @@ virThreadPoolSetParameters(virThreadPoolPtr pool, goto error; } =20 + if ((maxWorkers =3D=3D 0 && pool->maxWorkers > 0) || + (maxWorkers > 0 && pool->maxWorkers =3D=3D 0)) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("maxWorkers must not be switched from zero to non= -zero" + " and vice versa")); + goto error; + } + if (minWorkers >=3D 0) { if ((size_t) minWorkers > pool->nWorkers && virThreadPoolExpand(pool, minWorkers - pool->nWorkers, --=20 2.13.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list