[libvirt] [PATCH 1/8] Add new API virDomain{Set, Get}BlockIoTune
Eric Blake
eblake at redhat.com
Wed Nov 9 20:43:28 UTC 2011
On 11/09/2011 01:32 PM, Lei Li wrote:
> This patch add new pulic API virDomainSetBlockIoTune and
> virDomainGetBlockIoTune.
>
>
> Signed-off-by: Zhi Yong Wu<wuzhy at linux.vnet.ibm.com>
> Signed-off-by: Lei Li<lilei at linux.vnet.ibm.com>
> ---
> include/libvirt/libvirt.h.in | 26 +++++++++
> src/driver.h | 19 +++++++
> src/libvirt.c | 115 ++++++++++++++++++++++++++++++++++++++++++
> src/libvirt_public.syms | 2 +
> 4 files changed, 162 insertions(+), 0 deletions(-)
>
> diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
> index aa320b6..a79c35e 100644
> --- a/include/libvirt/libvirt.h.in
> +++ b/include/libvirt/libvirt.h.in
> @@ -1640,6 +1640,32 @@ int virDomainBlockJobSetSpeed(virDomainPtr dom, const char *path,
> int virDomainBlockPull(virDomainPtr dom, const char *path,
> unsigned long bandwidth, unsigned int flags);
>
> +/*
> + * Block I/O throttling support
> + */
> +
> +typedef struct _virDomainBlockIoTuneInfo virDomainBlockIoTuneInfo;
> +struct _virDomainBlockIoTuneInfo {
> + unsigned long long total_bytes_sec;
> + unsigned long long read_bytes_sec;
> + unsigned long long write_bytes_sec;
> + unsigned long long total_iops_sec;
> + unsigned long long read_iops_sec;
> + unsigned long long write_iops_sec;
> +};
> +typedef virDomainBlockIoTuneInfo *virDomainBlockIoTuneInfoPtr;
This is not extensible. We've already learned the hard way that this
MUST use virTypedParameter to make future additions painless, rather
than hard-coding a particular structure.
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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