From 5d3e4c2e358842244d8ca4b21d71c530b30b8e8f Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Mon, 9 Sep 2013 13:07:29 -0600 Subject: [PATCH] qemu: endjob returns a bool Osier Yang pointed out that ever since commit 31cb030, the signature of qemuDomainObjEndJob was changed to return a bool. While comparison against 0 or > 0 still gives the right results, it looks fishy; we also had one place that was comparing < 0 which is effectively dead code. * src/qemu/qemu_migration.c (qemuMigrationPrepareAny): Fix dead code bug. (qemuMigrationBegin): Use more canonical form of bool check. * src/qemu/qemu_driver.c (qemuAutostartDomain) (qemuDomainCreateXML, qemuDomainSuspend, qemuDomainResume) (qemuDomainShutdownFlags, qemuDomainReboot, qemuDomainReset) (qemuDomainDestroyFlags, qemuDomainSetMemoryFlags) (qemuDomainSetMemoryStatsPeriod, qemuDomainInjectNMI) (qemuDomainSendKey, qemuDomainGetInfo, qemuDomainScreenshot) (qemuDomainSetVcpusFlags, qemuDomainGetVcpusFlags) (qemuDomainRestoreFlags, qemuDomainGetXMLDesc) (qemuDomainCreateWithFlags, qemuDomainAttachDeviceFlags) (qemuDomainUpdateDeviceFlags, qemuDomainDetachDeviceFlags) (qemuDomainBlockResize, qemuDomainBlockStats) (qemuDomainBlockStatsFlags, qemuDomainMemoryStats) (qemuDomainMemoryPeek, qemuDomainGetBlockInfo) (qemuDomainAbortJob, qemuDomainMigrateSetMaxDowntime) (qemuDomainMigrateGetCompressionCache) (qemuDomainMigrateSetCompressionCache) (qemuDomainMigrateSetMaxSpeed) (qemuDomainSnapshotCreateActiveInternal) (qemuDomainRevertToSnapshot, qemuDomainSnapshotDelete) (qemuDomainQemuMonitorCommand, qemuDomainQemuAttach) (qemuDomainBlockJobImpl, qemuDomainBlockCopy) (qemuDomainBlockCommit, qemuDomainOpenGraphics) (qemuDomainGetBlockIoTune, qemuDomainGetDiskErrors) (qemuDomainPMSuspendForDuration, qemuDomainPMWakeup) (qemuDomainQemuAgentCommand, qemuDomainFSTrim): Likewise. Signed-off-by: Eric Blake (cherry picked from commit 6cd15482586334a822d248dd8b94cee0635d3e64) Conflicts: src/qemu/qemu_driver.c - some intermediate patches not backported --- src/qemu/qemu_driver.c | 113 ++++++++++++++++++-------------------- src/qemu/qemu_migration.c | 4 +- 2 files changed, 54 insertions(+), 63 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 4342ec7286..e36a224e39 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -292,7 +292,7 @@ qemuAutostartDomain(virDomainObjPtr vm, err ? err->message : _("unknown error")); } - if (qemuDomainObjEndJob(data->driver, vm) == 0) + if (!qemuDomainObjEndJob(data->driver, vm)) vm = NULL; } @@ -1610,7 +1610,7 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, start_flags) < 0) { virDomainAuditStart(vm, "booted", false); - if (qemuDomainObjEndJob(driver, vm) > 0) + if (qemuDomainObjEndJob(driver, vm)) qemuDomainRemoveInactive(driver, vm); vm = NULL; goto cleanup; @@ -1635,7 +1635,7 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn, if (dom) dom->id = vm->def->id; if (vm && - qemuDomainObjEndJob(driver, vm) == 0) + !qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -1721,7 +1721,7 @@ static int qemuDomainSuspend(virDomainPtr dom) { ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -1786,7 +1786,7 @@ static int qemuDomainResume(virDomainPtr dom) { ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -1881,7 +1881,7 @@ static int qemuDomainShutdownFlags(virDomainPtr dom, unsigned int flags) { } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -1991,7 +1991,7 @@ qemuDomainReboot(virDomainPtr dom, unsigned int flags) } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2034,7 +2034,7 @@ qemuDomainReset(virDomainPtr dom, unsigned int flags) priv->fakeReboot = false; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2120,15 +2120,14 @@ qemuDomainDestroyFlags(virDomainPtr dom, virDomainAuditStop(vm, "destroyed"); if (!vm->persistent) { - if (qemuDomainObjEndJob(driver, vm) > 0) + if (qemuDomainObjEndJob(driver, vm)) qemuDomainRemoveInactive(driver, vm); vm = NULL; } ret = 0; endjob: - if (vm && - qemuDomainObjEndJob(driver, vm) == 0) + if (vm && !qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2273,7 +2272,7 @@ static int qemuDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2347,7 +2346,7 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int period, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2395,10 +2394,8 @@ static int qemuDomainInjectNMI(virDomainPtr domain, unsigned int flags) qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; - goto cleanup; - } cleanup: if (vm) @@ -2461,7 +2458,7 @@ static int qemuDomainSendKey(virDomainPtr domain, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -2517,7 +2514,7 @@ static int qemuDomainGetInfo(virDomainPtr dom, err = qemuMonitorGetBalloonInfo(priv->mon, &balloon); qemuDomainObjExitMonitor(driver, vm); } - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) { vm = NULL; goto cleanup; } @@ -3669,7 +3666,7 @@ endjob: unlink(tmp); VIR_FREE(tmp); - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -4224,7 +4221,7 @@ qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -4918,7 +4915,7 @@ qemuDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags) qemuDomainObjExitAgent(vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; if (ncpuinfo < 0) @@ -5445,7 +5442,7 @@ qemuDomainRestoreFlags(virConnectPtr conn, if (virFileWrapperFdClose(wrapperFd) < 0) VIR_WARN("Failed to close %s", path); - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; else if (ret < 0 && !vm->persistent) { qemuDomainRemoveInactive(driver, vm); @@ -5665,7 +5662,7 @@ static char *qemuDomainGetXMLDesc(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) { vm = NULL; goto cleanup; } @@ -6066,7 +6063,7 @@ qemuDomainCreateWithFlags(virDomainPtr dom, unsigned int flags) ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -6939,7 +6936,7 @@ static int qemuDomainAttachDeviceFlags(virDomainPtr dom, const char *xml, } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -7083,7 +7080,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -7221,7 +7218,7 @@ static int qemuDomainDetachDeviceFlags(virDomainPtr dom, const char *xml, } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -8919,7 +8916,7 @@ qemuDomainBlockResize(virDomainPtr dom, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -8990,7 +8987,7 @@ qemuDomainBlockStats(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -9158,7 +9155,7 @@ qemuDomainBlockStatsFlags(virDomainPtr dom, *nparams = tmp; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -9553,7 +9550,7 @@ qemuDomainMemoryStats(virDomainPtr dom, } } - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -9696,7 +9693,7 @@ qemuDomainMemoryPeek(virDomainPtr dom, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -9851,7 +9848,7 @@ qemuDomainGetBlockInfo(virDomainPtr dom, ret = 0; } - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; } else { ret = 0; @@ -11141,7 +11138,7 @@ static int qemuDomainAbortJob(virDomainPtr dom) { qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -11192,7 +11189,7 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -11247,7 +11244,7 @@ qemuDomainMigrateGetCompressionCache(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -11303,7 +11300,7 @@ qemuDomainMigrateSetCompressionCache(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -11351,7 +11348,7 @@ qemuDomainMigrateSetMaxSpeed(virDomainPtr dom, priv->migMaxBandwidth = bandwidth; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; } else { priv->migMaxBandwidth = bandwidth; @@ -11704,7 +11701,7 @@ cleanup: } endjob: - if (vm && qemuDomainObjEndJob(driver, vm) == 0) { + if (vm && !qemuDomainObjEndJob(driver, vm)) { /* Only possible if a transient vm quit while our locks were down, * in which case we don't want to save snapshot metadata. */ *vmptr = NULL; @@ -13286,7 +13283,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, if (qemuDomainSnapshotRevertInactive(driver, vm, snap) < 0) { if (!vm->persistent) { - if (qemuDomainObjEndJob(driver, vm) > 0) + if (qemuDomainObjEndJob(driver, vm)) qemuDomainRemoveInactive(driver, vm); vm = NULL; goto cleanup; @@ -13313,7 +13310,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, virDomainAuditStart(vm, "from-snapshot", rc >= 0); if (rc < 0) { if (!vm->persistent) { - if (qemuDomainObjEndJob(driver, vm) > 0) + if (qemuDomainObjEndJob(driver, vm)) qemuDomainRemoveInactive(driver, vm); vm = NULL; goto cleanup; @@ -13336,7 +13333,7 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, ret = 0; endjob: - if (vm && qemuDomainObjEndJob(driver, vm) == 0) + if (vm && !qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -13502,7 +13499,7 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot, } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -13555,7 +13552,7 @@ static int qemuDomainQemuMonitorCommand(virDomainPtr domain, const char *cmd, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) { vm = NULL; } @@ -13644,7 +13641,7 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn, if (dom) dom->id = vm->def->id; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) { vm = NULL; goto cleanup; } @@ -14141,7 +14138,7 @@ qemuDomainBlockJobImpl(virDomainObjPtr vm, } endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) { vm = NULL; goto cleanup; } @@ -14372,10 +14369,8 @@ endjob: if (need_unlink && unlink(dest)) VIR_WARN("unable to unlink just-created %s", dest); VIR_FREE(mirror); - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; - goto cleanup; - } cleanup: VIR_FREE(device); @@ -14564,10 +14559,8 @@ endjob: top_parent, VIR_DISK_CHAIN_READ_ONLY); } - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; - goto cleanup; - } cleanup: VIR_FREE(device); @@ -14633,10 +14626,8 @@ qemuDomainOpenGraphics(virDomainPtr dom, ret = qemuMonitorOpenGraphics(priv->mon, protocol, fd, "graphicsfd", (flags & VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH) != 0); qemuDomainObjExitMonitor(driver, vm); - if (qemuDomainObjEndJob(driver, vm) == 0) { + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; - goto cleanup; - } cleanup: if (vm) @@ -14951,7 +14942,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom, ret = 0; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -15025,7 +15016,7 @@ qemuDomainGetDiskErrors(virDomainPtr dom, ret = n; endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -15556,7 +15547,7 @@ qemuDomainPMSuspendForDuration(virDomainPtr dom, qemuDomainObjExitAgent(vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -15605,7 +15596,7 @@ qemuDomainPMWakeup(virDomainPtr dom, qemuDomainObjExitMonitor(driver, vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -15691,7 +15682,7 @@ qemuDomainQemuAgentCommand(virDomainPtr domain, VIR_FREE(result); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: @@ -15761,7 +15752,7 @@ qemuDomainFSTrim(virDomainPtr dom, qemuDomainObjExitAgent(vm); endjob: - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; cleanup: diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index a8240e9492..dba9205dca 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2128,7 +2128,7 @@ endjob: if (qemuMigrationJobFinish(driver, vm) == 0) vm = NULL; } else { - if (qemuDomainObjEndJob(driver, vm) == 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; } goto cleanup; @@ -2337,7 +2337,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, VIR_QEMU_PROCESS_START_PAUSED | VIR_QEMU_PROCESS_START_AUTODESTROY) < 0) { virDomainAuditStart(vm, "migrated", false); - if (qemuDomainObjEndJob(driver, vm) < 0) + if (!qemuDomainObjEndJob(driver, vm)) vm = NULL; goto endjob; }