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Tue, 01 Oct 2019 23:47:29 +0000 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x91NlTEl52429298 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 1 Oct 2019 23:47:29 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4576A2805C; Tue, 1 Oct 2019 23:47:29 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 294FE28058; Tue, 1 Oct 2019 23:47:29 +0000 (GMT) Received: from localhost (unknown [9.53.179.213]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 1 Oct 2019 23:47:29 +0000 (GMT) From: Michael Roth To: qemu-devel@nongnu.org Subject: [PATCH 32/97] vl: Fix -drive / -blockdev persistent reservation management Date: Tue, 1 Oct 2019 18:45:11 -0500 Message-Id: <20191001234616.7825-33-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191001234616.7825-1-mdroth@linux.vnet.ibm.com> References: <20191001234616.7825-1-mdroth@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-10-01_10:, , 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=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910010203 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 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: Paolo Bonzini , qemu-stable@nongnu.org, Markus Armbruster Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Markus Armbruster qemu-system-FOO's main() acts on command line arguments in its own idiosyncratic order. There's not much method to its madness. Whenever we find a case where one kind of command line argument needs to refer to something created for another kind later, we rejigger the order. Recent commit cda4aa9a5a "vl: Create block backends before setting machine properties" was such a rejigger. Block backends are now created before "delayed" objects. This broke persistent reservation management. Reproducer: $ qemu-system-x86_64 -object pr-manager-helper,id=pr-helper0,path=/tmp/pr-helper0.sock-drive -drive file=/dev/mapper/crypt,file.pr-manager=pr-helper0,format=raw,if=none,id=drive-scsi0-0-0-2 qemu-system-x86_64: -drive file=/dev/mapper/crypt,file.pr-manager=pr-helper0,format=raw,if=none,id=drive-scsi0-0-0-2: No persistent reservation manager with id 'pr-helper0' The delayed pr-manager-helper object is created too late for use by -drive or -blockdev. Normal objects are still created in time. pr-manager-helper has always been a delayed object (commit 7c9e527659 "scsi, file-posix: add support for persistent reservation management"). Turns out there's no real reason for that. Make it a normal object. Fixes: cda4aa9a5a08777cf13e164c0543bd4888b8adce Signed-off-by: Markus Armbruster Message-Id: <20190604151251.9903-2-armbru@redhat.com> Reviewed-by: Michal Privoznik Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini (cherry picked from commit 9ea18ed25a36527167e9676f25d983df5e7f76e6) Signed-off-by: Michael Roth --- vl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/vl.c b/vl.c index c696ad2a13..c3dee09c9b 100644 --- a/vl.c +++ b/vl.c @@ -2825,8 +2825,7 @@ static bool object_create_initial(const char *type, QemuOpts *opts) exit(0); } - if (g_str_equal(type, "rng-egd") || - g_str_has_prefix(type, "pr-manager-")) { + if (g_str_equal(type, "rng-egd")) { return false; } -- 2.17.1