On 09/02/2014 06:31 AM, Francesco Romani wrote:
> Management software, want to be able to allocate disk space on demand.
s/software, want/software wants/
> To support this, they need keep track of the space occupation
> of the block device.
(what's more, during a blockcopy or active blockcommit, they also need
to track space allocation of secondary files - but we can add that
support later)
> This information is reported by qemu as part of block stats.
>
> This patch extend the block information in the bulk stats with
s/extend/extends/
> the allocation information, in order to save a call to the QEMU
> monitor.
> ---
> src/libvirt.c | 1 +
> src/qemu/qemu_driver.c | 15 +++++++++++++++
> 2 files changed, 16 insertions(+)
>
> diff --git a/src/libvirt.c b/src/libvirt.c
> index cabfb91..81d71be 100644
> --- a/src/libvirt.c
> +++ b/src/libvirt.c
> @@ -21591,6 +21591,7 @@ virConnectGetDomainCapabilities(virConnectPtr conn,
> * "block.<num>.wr.times" - total time (ns) spent on writes.
> * "block.<num>.fl.reqs" - total flush requests
> * "block.<num>.fl.times" - total time (ns) spent on cache flushing
> + * "block.<num>.allocation" - offset of the highest written sector.
Missing type.
> *
> * Using 0 for @stats returns all stats groups supported by the given
> * hypervisor.
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index 977e8c7..3fb54db 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -17554,6 +17554,18 @@ do { \
> goto cleanup; \
> } while (0)
>
> +#define QEMU_ADD_BLOCK_PARAM_ULL(RECORD, MAXPARAMS, NUM, NAME, VALUE) \
> +do { \
> + char param_name[NAME_MAX]; \
Oversized.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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