Re: [libvirt] [PATCH 5/6] qemu: stop passing in virConnectPtr for looking up networks

When setting up graphics, we sometimes need to resolve networks, requiring the caller to pass in a virConnectPtr, except sometimes they pass in NULL. Use virGetConnectNetwork() to acquire the connection to the network driver when it is needed. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/qemu/qemu_driver.c | 2 +- src/qemu/qemu_migration.c | 2 +- src/qemu/qemu_process.c | 38 ++++++++++++++++++-------------------- src/qemu/qemu_process.h | 6 ++---- 4 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4533996201..c44b1f8793 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -7222,7 +7222,7 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn, net->script = script; } - if (!(cmd = qemuProcessCreatePretendCmd(conn, driver, vm, NULL, + if (!(cmd = qemuProcessCreatePretendCmd(driver, vm, NULL, qemuCheckFips(), true, VIR_QEMU_PROCESS_START_COLD))) goto cleanup; diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index d202e87fbe..312d717617 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2752,7 +2752,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, dataFD[0]))) goto stopjob; - if (qemuProcessPrepareDomain(dconn, driver, vm, startFlags) < 0) + if (qemuProcessPrepareDomain(driver, vm, startFlags) < 0) goto stopjob; if (qemuProcessPrepareHost(driver, vm, startFlags) < 0) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 27454fb583..703d62d3e9 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4327,10 +4327,10 @@ qemuProcessGraphicsAllocatePorts(virQEMUDriverPtr driver, } static int -qemuProcessGetNetworkAddress(virConnectPtr conn, - const char *netname, +qemuProcessGetNetworkAddress(const char *netname, char **netaddr) { + virConnectPtr conn = NULL; int ret = -1; virNetworkPtr net; virNetworkDefPtr netdef = NULL; @@ -4341,6 +4341,10 @@ qemuProcessGetNetworkAddress(virConnectPtr conn, char *xml = NULL; *netaddr = NULL; + + if (!(conn = virGetConnectNetwork())) + return -1; + net = virNetworkLookupByName(conn, netname); if (!net) goto cleanup; @@ -4407,14 +4411,14 @@ qemuProcessGetNetworkAddress(virConnectPtr conn, cleanup: virNetworkDefFree(netdef); virObjectUnref(net); + virObjectUnref(conn); VIR_FREE(xml); return ret; } static int -qemuProcessGraphicsSetupNetworkAddress(virConnectPtr conn, - virDomainGraphicsListenDefPtr glisten, +qemuProcessGraphicsSetupNetworkAddress(virDomainGraphicsListenDefPtr glisten, const char *listenAddr) { int rc; @@ -4426,7 +4430,7 @@ qemuProcessGraphicsSetupNetworkAddress(virConnectPtr conn, return 0; } - rc = qemuProcessGetNetworkAddress(conn, glisten->network, &glisten->address); + rc = qemuProcessGetNetworkAddress(glisten->network, &glisten->address); if (rc <= -2) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("network-based listen isn't possible, " @@ -4441,8 +4445,7 @@ qemuProcessGraphicsSetupNetworkAddress(virConnectPtr conn, static int -qemuProcessGraphicsSetupListen(virConnectPtr conn, - virQEMUDriverPtr driver, +qemuProcessGraphicsSetupListen(virQEMUDriverPtr driver, virDomainGraphicsDefPtr graphics, virDomainObjPtr vm) { @@ -4500,8 +4503,7 @@ qemuProcessGraphicsSetupListen(virConnectPtr conn, if (glisten->address || !listenAddr) continue; - if (qemuProcessGraphicsSetupNetworkAddress(conn, - glisten, + if (qemuProcessGraphicsSetupNetworkAddress(glisten, listenAddr) < 0) goto cleanup; break; @@ -4530,8 +4532,7 @@ qemuProcessGraphicsSetupListen(virConnectPtr conn, static int -qemuProcessSetupGraphics(virConnectPtr conn, - virQEMUDriverPtr driver, +qemuProcessSetupGraphics(virQEMUDriverPtr driver, virDomainObjPtr vm, unsigned int flags) { @@ -4543,7 +4544,7 @@ qemuProcessSetupGraphics(virConnectPtr conn, for (i = 0; i < vm->def->ngraphics; i++) { graphics = vm->def->graphics[i]; - if (qemuProcessGraphicsSetupListen(conn, driver, graphics, vm) < 0) + if (qemuProcessGraphicsSetupListen(driver, graphics, vm) < 0) goto cleanup; } @@ -5625,7 +5626,6 @@ qemuProcessPrepareAllowReboot(virDomainObjPtr vm) /** * qemuProcessPrepareDomain: - * @conn: connection object (for looking up storage volumes) * @driver: qemu driver * @vm: domain object * @flags: qemuProcessStartFlags @@ -5640,8 +5640,7 @@ qemuProcessPrepareAllowReboot(virDomainObjPtr vm) * TODO: move all XML modification from qemuBuildCommandLine into this function */ int -qemuProcessPrepareDomain(virConnectPtr conn, - virQEMUDriverPtr driver, +qemuProcessPrepareDomain(virQEMUDriverPtr driver, virDomainObjPtr vm, unsigned int flags) { @@ -5698,7 +5697,7 @@ qemuProcessPrepareDomain(virConnectPtr conn, goto cleanup; VIR_DEBUG("Setting graphics devices"); - if (qemuProcessSetupGraphics(conn, driver, vm, flags) < 0) + if (qemuProcessSetupGraphics(driver, vm, flags) < 0) goto cleanup; VIR_DEBUG("Create domain masterKey"); @@ -6329,7 +6328,7 @@ qemuProcessStart(virConnectPtr conn, goto stop; } - if (qemuProcessPrepareDomain(conn, driver, vm, flags) < 0) + if (qemuProcessPrepareDomain(driver, vm, flags) < 0) goto stop; if (qemuProcessPrepareHost(driver, vm, flags) < 0) @@ -6386,8 +6385,7 @@ qemuProcessStart(virConnectPtr conn, virCommandPtr -qemuProcessCreatePretendCmd(virConnectPtr conn, - virQEMUDriverPtr driver, +qemuProcessCreatePretendCmd(virQEMUDriverPtr driver, virDomainObjPtr vm, const char *migrateURI, bool enableFips, @@ -6407,7 +6405,7 @@ qemuProcessCreatePretendCmd(virConnectPtr conn, !!migrateURI, flags) < 0) goto cleanup; - if (qemuProcessPrepareDomain(conn, driver, vm, flags) < 0) + if (qemuProcessPrepareDomain(driver, vm, flags) < 0) goto cleanup; VIR_DEBUG("Building emulator command line"); diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h index 42f92eb458..1bc1203c18 100644 --- a/src/qemu/qemu_process.h +++ b/src/qemu/qemu_process.h @@ -92,8 +92,7 @@ int qemuProcessStart(virConnectPtr conn, virNetDevVPortProfileOp vmop, unsigned int flags); -virCommandPtr qemuProcessCreatePretendCmd(virConnectPtr conn, - virQEMUDriverPtr driver, +virCommandPtr qemuProcessCreatePretendCmd(virQEMUDriverPtr driver, virDomainObjPtr vm, const char *migrateURI, bool enableFips, @@ -107,8 +106,7 @@ int qemuProcessInit(virQEMUDriverPtr driver, bool migration, unsigned int flags); -int qemuProcessPrepareDomain(virConnectPtr conn, - virQEMUDriverPtr driver, +int qemuProcessPrepareDomain(virQEMUDriverPtr driver, virDomainObjPtr vm, unsigned int flags);