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3f39a0bf27
* tools/virsh.c: fix missing zero value judgement in cmdBlkiotune and correct
vshError information.
when weight is equal to 0, the cmdBlkiotune will not raise any error information
when judge weight value first time, and execute else branch to judge weight
value again, strncpy(temp->field, VIR_DOMAIN_BLKIO_WEIGHT, sizeof(temp->field))
will be not executed for ever. However, if and only if param->field is equal
to VIR_DOMAIN_BLKIO_WEIGHT, underlying qemuDomainSetBlkioParameters function
will check whether weight value is in range [100, 1000].
* how to reproduce?
% virsh blkiotune ${guestname} --weight 0
Signed-off-by: Alex Jia <ajia@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>