[libvirt] [PATCH] virsh nodecpustats returns incorrect stats of cpu on Linux when the number of online cpu exceed 9.

[Daniel P. Berrange]

On Mon, Jan 13, 2014 at 06:28:07PM +0800, mars at linux.vnet.ibm.com wrote:
> From: Bing Bu Cao <mars at linux.vnet.ibm.com>
> 
> To retrieve node cpu statistics on Linux system, the
> linuxNodeGetCPUstats function use STRPREFIX() to match the
> cpuid with the cpuid read from /proc/cpustat, it will cause
> obvious error.
> 
> For example:
> 'virsh nodecpustats 12' will display stats of cpu1 if the latter is online.
> 
> This patch fixes this bug.
> 
> Signed-off-by: Bing Bu Cao <mars at linux.vnet.ibm.com>
> Signed-off-by: Pradipta Kr. Banerjee <bpradip at in.ibm.com>
> ---
>  src/nodeinfo.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)

Can you also provide a test case to validate this. You just
need to get a suitable /proc/cpustat file and save it in the
tests/ dir and then include linuxNodeGetCPUStats() using that
file.

Daniel
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