Re: [Qemu-devel] [PATCH] hmp: Make "info block" output more readable

[Fam Zheng <famz@redhat.com>]

On Wed, 06/19 16:10, Kevin Wolf wrote:
> HMP is meant for humans and you should notice it.
> 
> This changes the output format to use a bit more space to display the
> information more readable and leaves out irrelevant information (e.g.
> mention only that an image is encrypted, but not when it's not; display
> I/O limits only if throttling is in effect; ...)
> 
> Before:
> 
>     (qemu) info block
>     ide0-hd0: removable=0 io-status=ok file=/tmp/overlay.qcow2
>     backing_file=/tmp/backing.img backing_file_depth=1 ro=0 drv=qcow2
>     encrypted=1 bps=0 bps_rd=0 bps_wr=0 iops=1024 iops_rd=0 iops_wr=0
>     ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok
>     file=/home/kwolf/images/iso/Fedora-18-x86_64-Live-Desktop.iso ro=1
>     drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
>     floppy0: removable=1 locked=0 tray-open=0 [not inserted]
>     sd0: removable=1 locked=0 tray-open=0 [not inserted]
> 
> After:
> 
>     (qemu) info block
>     ide0-hd0: /tmp/overlay.qcow2 (qcow2, encrypted)
>         Backing file:     /tmp/backing.img (chain depth: 1)
>         I/O limits:       bps=0 bps_rd=0 bps_wr=0 iops=1024 iops_rd=0 iops_wr=0
> 
>     ide1-cd0: /home/kwolf/images/iso/Fedora-18-x86_64-Live-Desktop.iso (raw, read-only)
>         Removable device: not locked, tray closed
> 
>     floppy0: [not inserted]
>         Removable device: not locked, tray closed
> 
>     sd0: [not inserted]
>         Removable device: not locked, tray closed
> 
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>

> +        if (info->value->has_io_status && info->value->io_status != BLOCK_DEVICE_IO_STATUS_OK) {
> +            monitor_printf(mon, "    I/O Status:       %s\n",
Would lowercase be more consistent?  s/Status/status/

This is getting much readable!
Reviewed-by: Fam Zheng <famz@redhat.com>