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提交 9c377576 编写于 作者: E Eric Blake
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lxc: use live/config helper 

Based on qemu changes made in commits ae523427 and 659ded58.

* src/lxc/lxc_driver.c (lxcSetSchedulerParametersFlags)
(lxcGetSchedulerParametersFlags, lxcDomainSetBlkioParameters)
(lxcDomainGetBlkioParameters): Use helpers.
(lxcDomainSetBlkioParameters): Allow setting live and config at
once.
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Showing with 29 addition and 131 deletion
src/lxc/lxc_driver.c
浏览文件 @ 9c377576
/*
* Copyright (C) 2010-2011 Red Hat, Inc.
* Copyright (C) 2010-2012 Red Hat, Inc.
* Copyright IBM Corp. 2008
*
* lxc_driver.c: linux container driver functions
......@@ -2749,7 +2749,6 @@ lxcSetSchedulerParametersFlags(virDomainPtr dom,
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
int ret = -1;
bool isActive;
int rc;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
......@@ -2765,22 +2764,11 @@ lxcSetSchedulerParametersFlags(virDomainPtr dom,
goto cleanup;
}
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_AFFECT_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_AFFECT_LIVE;
else
flags = VIR_DOMAIN_AFFECT_CONFIG;
}
if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
&vmdef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!vm->persistent) {
lxcError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto cleanup;
}
/* Make a copy for updated domain. */
vmdef = virDomainObjCopyPersistentDef(driver->caps, vm);
if (!vmdef)
......@@ -2788,12 +2776,6 @@ lxcSetSchedulerParametersFlags(virDomainPtr dom,
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!isActive) {
lxcError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto cleanup;
}
if (!lxcCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_CPU)) {
lxcError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup CPU controller is not mounted"));
......@@ -2919,12 +2901,12 @@ lxcGetSchedulerParametersFlags(virDomainPtr dom,
lxc_driver_t *driver = dom->conn->privateData;
virCgroupPtr group = NULL;
virDomainObjPtr vm = NULL;
virDomainDefPtr persistentDef;
unsigned long long shares = 0;
unsigned long long period = 0;
long long quota = 0;
int ret = -1;
int rc;
bool isActive;
bool cpu_bw_status = false;
int saved_nparams = 0;
......@@ -2948,52 +2930,19 @@ lxcGetSchedulerParametersFlags(virDomainPtr dom,
goto cleanup;
}
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_AFFECT_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_AFFECT_LIVE;
else
flags = VIR_DOMAIN_AFFECT_CONFIG;
}
if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
&persistentDef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!vm->persistent) {
lxcError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot query persistent config of a transient domain"));
goto cleanup;
}
if (isActive) {
virDomainDefPtr persistentDef;
persistentDef = virDomainObjGetPersistentDef(driver->caps, vm);
if (!persistentDef) {
lxcError(VIR_ERR_INTERNAL_ERROR, "%s",
_("can't get persistentDef"));
goto cleanup;
}
shares = persistentDef->cputune.shares;
if (*nparams > 1 && cpu_bw_status) {
period = persistentDef->cputune.period;
quota = persistentDef->cputune.quota;
}
} else {
shares = vm->def->cputune.shares;
if (*nparams > 1 && cpu_bw_status) {
period = vm->def->cputune.period;
quota = vm->def->cputune.quota;
}
shares = persistentDef->cputune.shares;
if (*nparams > 1 && cpu_bw_status) {
period = persistentDef->cputune.period;
quota = persistentDef->cputune.quota;
}
goto out;
}
if (!isActive) {
lxcError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is not running"));
goto cleanup;
}
if (!lxcCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_CPU)) {
lxcError(VIR_ERR_OPERATION_INVALID,
"%s", _("cgroup CPU controller is not mounted"));
......@@ -3091,7 +3040,6 @@ static int lxcDomainSetBlkioParameters(virDomainPtr dom,
virDomainObjPtr vm = NULL;
virDomainDefPtr persistentDef = NULL;
int ret = -1;
bool isActive;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
......@@ -3105,22 +3053,11 @@ static int lxcDomainSetBlkioParameters(virDomainPtr dom,
goto cleanup;
}
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_AFFECT_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_AFFECT_LIVE;
else
flags = VIR_DOMAIN_AFFECT_CONFIG;
}
if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
&persistentDef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!isActive) {
lxcError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto cleanup;
}
if (!lxcCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_BLKIO)) {
lxcError(VIR_ERR_OPERATION_INVALID, _("blkio cgroup isn't mounted"));
goto cleanup;
......@@ -3131,20 +3068,7 @@ static int lxcDomainSetBlkioParameters(virDomainPtr dom,
_("cannot find cgroup for domain %s"), vm->def->name);
goto cleanup;
}
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!vm->persistent) {
lxcError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto cleanup;
}
if (!(persistentDef = virDomainObjGetPersistentDef(driver->caps, vm)))
goto cleanup;
}
ret = 0;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
for (i = 0; i < nparams; i++) {
virTypedParameterPtr param = &params[i];
......@@ -3153,30 +3077,29 @@ static int lxcDomainSetBlkioParameters(virDomainPtr dom,
if (param->type != VIR_TYPED_PARAM_UINT) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("invalid type for blkio weight tunable, expected a 'unsigned int'"));
ret = -1;
continue;
goto cleanup;
}
if (params[i].value.ui > 1000 || params[i].value.ui < 100) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("out of blkio weight range."));
ret = -1;
continue;
goto cleanup;
}
rc = virCgroupSetBlkioWeight(group, params[i].value.ui);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to set blkio weight tunable"));
ret = -1;
goto cleanup;
}
} else {
lxcError(VIR_ERR_INVALID_ARG,
_("Parameter `%s' not supported"), param->field);
ret = -1;
goto cleanup;
}
}
} else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
/* Clang can't see that if we get here, persistentDef was set. */
sa_assert(persistentDef);
......@@ -3187,29 +3110,28 @@ static int lxcDomainSetBlkioParameters(virDomainPtr dom,
if (param->type != VIR_TYPED_PARAM_UINT) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("invalid type for blkio weight tunable, expected a 'unsigned int'"));
ret = -1;
continue;
goto cleanup;
}
if (params[i].value.ui > 1000 || params[i].value.ui < 100) {
lxcError(VIR_ERR_INVALID_ARG, "%s",
_("out of blkio weight range."));
ret = -1;
continue;
goto cleanup;
}
persistentDef->blkio.weight = params[i].value.ui;
} else {
lxcError(VIR_ERR_INVALID_ARG,
_("Parameter `%s' not supported"), param->field);
ret = -1;
goto cleanup;
}
}
if (virDomainSaveConfig(driver->configDir, persistentDef) < 0)
ret = -1;
goto cleanup;
}
ret = 0;
cleanup:
virCgroupFree(&group);
if (vm)
......@@ -3233,7 +3155,6 @@ static int lxcDomainGetBlkioParameters(virDomainPtr dom,
unsigned int val;
int ret = -1;
int rc;
bool isActive;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
......@@ -3254,22 +3175,11 @@ static int lxcDomainGetBlkioParameters(virDomainPtr dom,
goto cleanup;
}
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_AFFECT_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_AFFECT_LIVE;
else
flags = VIR_DOMAIN_AFFECT_CONFIG;
}
if (virDomainLiveConfigHelperMethod(driver->caps, vm, &flags,
&persistentDef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
if (!isActive) {
lxcError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto cleanup;
}
if (!lxcCgroupControllerActive(driver, VIR_CGROUP_CONTROLLER_BLKIO)) {
lxcError(VIR_ERR_OPERATION_INVALID, _("blkio cgroup isn't mounted"));
goto cleanup;
......@@ -3280,19 +3190,7 @@ static int lxcDomainGetBlkioParameters(virDomainPtr dom,
_("cannot find cgroup for domain %s"), vm->def->name);
goto cleanup;
}
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!vm->persistent) {
lxcError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto cleanup;
}
if (!(persistentDef = virDomainObjGetPersistentDef(driver->caps, vm)))
goto cleanup;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
for (i = 0; i < *nparams && i < LXC_NB_BLKIO_PARAM; i++) {
virTypedParameterPtr param = &params[i];
val = 0;
......
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