[libvirt] [PATCH 2/3] lxc: Make SetMemory work for active domains only
Daniel Veillard
veillard at redhat.com
Mon May 3 13:48:25 UTC 2010
On Mon, May 03, 2010 at 02:20:27PM +0200, jdenemar at redhat.com wrote:
> From: Jiri Denemark <jdenemar at redhat.com>
>
> ---
> src/lxc/lxc_driver.c | 39 +++++++++++++++++++++------------------
> 1 files changed, 21 insertions(+), 18 deletions(-)
>
> diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
> index f118b7d..6884fea 100644
> --- a/src/lxc/lxc_driver.c
> +++ b/src/lxc/lxc_driver.c
> @@ -642,27 +642,30 @@ static int lxcDomainSetMemory(virDomainPtr dom, unsigned long newmem) {
> goto cleanup;
> }
>
> - if (virDomainObjIsActive(vm)) {
> - if (driver->cgroup == NULL) {
> - lxcError(VIR_ERR_NO_SUPPORT,
> - "%s", _("cgroups must be configured on the host"));
> - goto cleanup;
> - }
> + if (!virDomainObjIsActive(vm)) {
> + lxcError(VIR_ERR_OPERATION_INVALID,
> + "%s", _("Domain is not running"));
> + goto cleanup;
> + }
>
> - if (virCgroupForDomain(driver->cgroup, vm->def->name, &cgroup, 0) != 0) {
> - lxcError(VIR_ERR_INTERNAL_ERROR,
> - _("Unable to get cgroup for %s"), vm->def->name);
> - goto cleanup;
> - }
> + if (driver->cgroup == NULL) {
> + lxcError(VIR_ERR_NO_SUPPORT,
> + "%s", _("cgroups must be configured on the host"));
> + goto cleanup;
> + }
>
> - if (virCgroupSetMemory(cgroup, newmem) < 0) {
> - lxcError(VIR_ERR_OPERATION_FAILED,
> - "%s", _("Failed to set memory for domain"));
> - goto cleanup;
> - }
> - } else {
> - vm->def->memory = newmem;
> + if (virCgroupForDomain(driver->cgroup, vm->def->name, &cgroup, 0) != 0) {
> + lxcError(VIR_ERR_INTERNAL_ERROR,
> + _("Unable to get cgroup for %s"), vm->def->name);
> + goto cleanup;
> + }
> +
> + if (virCgroupSetMemory(cgroup, newmem) < 0) {
> + lxcError(VIR_ERR_OPERATION_FAILED,
> + "%s", _("Failed to set memory for domain"));
> + goto cleanup;
> }
> +
> ret = 0;
>
> cleanup:
I'm not 100% sure of the patch but the new sequence look more logical,
I'm still concerned that the new code seems to not update vm->def->memory
ACK, once double-checked it's not needed :-)
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel at veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
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