[libvirt] [PATCH v2 3/4] lxc, libxl: reuse virDomainObjUpdateModificationImpact
John Ferlan
jferlan at redhat.com
Tue Mar 1 15:46:52 UTC 2016
On 02/24/2016 03:38 AM, Nikolay Shirokovskiy wrote:
> First fortunately all versions of *_CURRENT, *_CONFIG and *_LIVE flags
> are numerically equal. Second libxl functions that don't use masks
> for flag expansion forbid extra flags via virCheckFlags before.
>
> Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy at virtuozzo.com>
> ---
> src/libxl/libxl_driver.c | 63 ++++------------------------------------
> src/lxc/lxc_driver.c | 75 ++++--------------------------------------------
> 2 files changed, 12 insertions(+), 126 deletions(-)
>
This should be two separate patches and use of singular libxl: and lxc:
prefixes on the subject line.
#1 For libxl driver changes (there's a bug there too)
#2 for lxc changes
This one I'll ask you to fix the bug and repost as two separate patches
> diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
> index 06feea5..7e65ba2 100644
> --- a/src/libxl/libxl_driver.c
> +++ b/src/libxl/libxl_driver.c
> @@ -3660,25 +3660,8 @@ libxlDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
> if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
> - } else {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("Domain is not running"));
> - goto endjob;
> - }
> - }
> -
> - if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("cannot modify device on transient domain"));
> - goto endjob;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto endjob;
>
> if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
> if (!(dev = virDomainDeviceDefParse(xml, vm->def,
> @@ -3768,25 +3751,8 @@ libxlDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
> if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
> - } else {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("Domain is not running"));
> - goto endjob;
> - }
> - }
> -
> - if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("cannot modify device on transient domain"));
> - goto endjob;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto endjob;
>
> if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
> if (!(dev = virDomainDeviceDefParse(xml, vm->def,
> @@ -3873,25 +3839,8 @@ libxlDomainUpdateDeviceFlags(virDomainPtr dom, const char *xml,
> if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
> - } else {
> - if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
> - flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("Domain is not running"));
> - goto cleanup;
> - }
> - }
> -
> - if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID,
> - "%s", _("cannot modify device on transient domain"));
> - goto cleanup;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto endjob;
This fails to compile since endjob doesn't exist in this context.
John
>
> if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
> if (!(dev = virDomainDeviceDefParse(xml, vm->def,
> diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
> index 41639ac..316c60c 100644
> --- a/src/lxc/lxc_driver.c
> +++ b/src/lxc/lxc_driver.c
> @@ -4993,43 +4993,22 @@ static int lxcDomainAttachDeviceFlags(virDomainPtr dom,
> virDomainDefPtr vmdef = NULL;
> virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
> int ret = -1;
> - unsigned int affect;
> virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
>
> virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
> VIR_DOMAIN_AFFECT_CONFIG, -1);
>
> - affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
> if (!(vm = lxcDomObjFromDomain(dom)))
> goto cleanup;
>
> if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_LIVE;
> - } else {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_AFFECT_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot do live update a device on "
> - "inactive domain"));
> - goto cleanup;
> - }
> - }
> -
> if (!(caps = virLXCDriverGetCapabilities(driver, false)))
> goto cleanup;
>
> - if ((flags & VIR_DOMAIN_AFFECT_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot modify device on transient domain"));
> - goto cleanup;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto cleanup;
>
> dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
> caps, driver->xmlopt,
> @@ -5121,41 +5100,20 @@ static int lxcDomainUpdateDeviceFlags(virDomainPtr dom,
> virDomainDefPtr vmdef = NULL;
> virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
> int ret = -1;
> - unsigned int affect;
> virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
>
> virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
> VIR_DOMAIN_AFFECT_CONFIG |
> VIR_DOMAIN_DEVICE_MODIFY_FORCE, -1);
>
> - affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
> if (!(vm = lxcDomObjFromDomain(dom)))
> goto cleanup;
>
> if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_LIVE;
> - } else {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_AFFECT_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot do live update a device on "
> - "inactive domain"));
> - goto cleanup;
> - }
> - }
> -
> - if ((flags & VIR_DOMAIN_AFFECT_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot modify device on transient domain"));
> - goto cleanup;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto cleanup;
>
> if (!(caps = virLXCDriverGetCapabilities(driver, false)))
> goto cleanup;
> @@ -5235,40 +5193,19 @@ static int lxcDomainDetachDeviceFlags(virDomainPtr dom,
> virDomainDefPtr vmdef = NULL;
> virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
> int ret = -1;
> - unsigned int affect;
> virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
>
> virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
> VIR_DOMAIN_AFFECT_CONFIG, -1);
>
> - affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
> if (!(vm = lxcDomObjFromDomain(dom)))
> goto cleanup;
>
> if (virDomainDetachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
> goto cleanup;
>
> - if (virDomainObjIsActive(vm)) {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_LIVE;
> - } else {
> - if (affect == VIR_DOMAIN_AFFECT_CURRENT)
> - flags |= VIR_DOMAIN_AFFECT_CONFIG;
> - /* check consistency between flags and the vm state */
> - if (flags & VIR_DOMAIN_AFFECT_LIVE) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot do live update a device on "
> - "inactive domain"));
> - goto cleanup;
> - }
> - }
> -
> - if ((flags & VIR_DOMAIN_AFFECT_CONFIG) && !vm->persistent) {
> - virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> - _("cannot modify device on transient domain"));
> - goto cleanup;
> - }
> + if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> + goto cleanup;
>
> if (!(caps = virLXCDriverGetCapabilities(driver, false)))
> goto cleanup;
>
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