Re: [PATCH 1/2] qemu_driver: live/config checks cleanup

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On 01/07/15 12:05, Pavel Hrdina wrote:
> Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
> ---
>  src/qemu/qemu_driver.c | 79 ++++++--------------------------------------------
>  1 file changed, 9 insertions(+), 70 deletions(-)
> 
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 7a04e67..4cfae03 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -8409,7 +8409,7 @@ static int qemuDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
>      virDomainDefPtr vmdef = NULL;
>      virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
>      int ret = -1;
> -    unsigned int affect, parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE;
> +    unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE;
>      virQEMUCapsPtr qemuCaps = NULL;
>      qemuDomainObjPrivatePtr priv;
>      virQEMUDriverConfigPtr cfg = NULL;
> @@ -8422,8 +8422,6 @@ static int qemuDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
>  
>      cfg = virQEMUDriverGetConfig(driver);
>  
> -    affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
>      if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
>          goto cleanup;
>  
> @@ -8438,26 +8436,8 @@ static int qemuDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
>      if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 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 endjob;
> -        }
> -    }
> -
> -    if ((flags & VIR_DOMAIN_AFFECT_CONFIG) && !vm->persistent) {
> -         virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> -                        _("cannot modify device on transient domain"));
> -         goto endjob;
> -    }
> +    if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> +        goto endjob;
>  
>      dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
>                                               caps, driver->xmlopt,
> @@ -8556,7 +8536,6 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
>      virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
>      bool force = (flags & VIR_DOMAIN_DEVICE_MODIFY_FORCE) != 0;
>      int ret = -1;
> -    unsigned int affect;
>      virQEMUCapsPtr qemuCaps = NULL;
>      qemuDomainObjPrivatePtr priv;
>      virQEMUDriverConfigPtr cfg = NULL;
> @@ -8570,8 +8549,6 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
>  
>      cfg = virQEMUDriverGetConfig(driver);
>  
> -    affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
>      if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
>          goto cleanup;
>  
> @@ -8586,33 +8563,15 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
>      if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 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 endjob;
> -        }
> -    }
> -
> -    if ((flags & VIR_DOMAIN_AFFECT_CONFIG) && !vm->persistent) {
> -         virReportError(VIR_ERR_OPERATION_INVALID, "%s",
> -                        _("cannot modify device on transient domain"));
> -         goto endjob;
> -    }
> -
>      dev = dev_copy = virDomainDeviceDefParse(xml, vm->def,
>                                               caps, driver->xmlopt,
>                                               VIR_DOMAIN_DEF_PARSE_INACTIVE);
>      if (dev == NULL)
>          goto endjob;
>  
> +    if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
> +        goto endjob;
> +
>      if (flags & VIR_DOMAIN_AFFECT_CONFIG &&
>          flags & VIR_DOMAIN_AFFECT_LIVE) {
>          /* If we are affecting both CONFIG and LIVE
> @@ -8695,7 +8654,7 @@ static int qemuDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
>      virDomainDefPtr vmdef = NULL;
>      virDomainDeviceDefPtr dev = NULL, dev_copy = NULL;
>      int ret = -1;
> -    unsigned int affect, parse_flags = 0;
> +    unsigned int parse_flags = 0;
>      virQEMUCapsPtr qemuCaps = NULL;
>      qemuDomainObjPrivatePtr priv;
>      virQEMUDriverConfigPtr cfg = NULL;
> @@ -8706,8 +8665,6 @@ static int qemuDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
>  
>      cfg = virQEMUDriverGetConfig(driver);
>  
> -    affect = flags & (VIR_DOMAIN_AFFECT_LIVE | VIR_DOMAIN_AFFECT_CONFIG);
> -
>      if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
>          goto cleanup;
>  
> @@ -8722,26 +8679,8 @@ static int qemuDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
>      if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 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 endjob;
> -        }
> -    }
> -
> -    if ((flags & VIR_DOMAIN_AFFECT_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_AFFECT_CONFIG) &&
>          !(flags & VIR_DOMAIN_AFFECT_LIVE))
> 

ACK.

Erik

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