[libvirt] [PATCH v2 11/12] virsh: Create a macro to add IOTUNE values

Erik Skultety eskultet at redhat.com
Tue Oct 25 17:44:29 UTC 2016


On Thu, Oct 06, 2016 at 06:38:59PM -0400, John Ferlan wrote:
> Rework the repetitive lines to add iotune values into easier to read macro
> 
> Signed-off-by: John Ferlan <jferlan at redhat.com>
> ---
>  tools/virsh-domain.c | 141 +++++++++------------------------------------------
>  1 file changed, 25 insertions(+), 116 deletions(-)
> 

[...]

> +#define VSH_ADD_IOTUNE(PARAM, CONST)                                           \
> +    if ((rv = vshCommandOptScaledInt(ctl, cmd, #PARAM, &value,                 \
> +                                     1, ULLONG_MAX)) < 0) {                    \

Again a nitpick, I guess the -length setting should not get scaled when one
tries e.g. 'kib' to pass along with the setting. In terms of a cleanup, yes,
it's very welcome, so maybe add a 'SCALE' argument - your call.

ACK

Erik

> +        goto interror;                                                         \
> +    } else if (rv > 0) {                                                       \
> +        if (virTypedParamsAddULLong(&params, &nparams, &maxparams,             \
> +                                    VIR_DOMAIN_BLOCK_IOTUNE_##CONST,           \
> +                                    value) < 0)                                \
> +            goto save_error;                                                   \
> +    }                                                                          \
> +
> +    VSH_ADD_IOTUNE(total-bytes-sec, TOTAL_BYTES_SEC);
> +    VSH_ADD_IOTUNE(read-bytes-sec, READ_BYTES_SEC);
> +    VSH_ADD_IOTUNE(write-bytes-sec, WRITE_BYTES_SEC);
> +    VSH_ADD_IOTUNE(total-iops-sec, TOTAL_IOPS_SEC);
> +    VSH_ADD_IOTUNE(read-iops-sec, READ_IOPS_SEC);
> +    VSH_ADD_IOTUNE(write-iops-sec, WRITE_IOPS_SEC);
> +
> +    VSH_ADD_IOTUNE(total-bytes-sec-max, TOTAL_BYTES_SEC_MAX);
> +    VSH_ADD_IOTUNE(read-bytes-sec-max, READ_BYTES_SEC_MAX);
> +    VSH_ADD_IOTUNE(write-bytes-sec-max, WRITE_BYTES_SEC_MAX);
> +    VSH_ADD_IOTUNE(total-iops-sec-max, TOTAL_IOPS_SEC_MAX);
> +    VSH_ADD_IOTUNE(read-iops-sec-max, READ_IOPS_SEC_MAX);
> +    VSH_ADD_IOTUNE(write-iops-sec-max, WRITE_IOPS_SEC_MAX);
> +    VSH_ADD_IOTUNE(size-iops-sec, SIZE_IOPS_SEC);
>  
>      if (nparams == 0) {
>          if (virDomainGetBlockIoTune(dom, NULL, NULL, &nparams, flags) != 0) {
> -- 
> 2.7.4
> 
> --
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