[pve-devel] [PATCH qemu-server 7/7] bwlimit: add parameter to API2 calls

Thomas Lamprecht t.lamprecht at proxmox.com
Sat Mar 30 10:32:44 CET 2019


On 3/29/19 8:28 AM, Stoiko Ivanov wrote:
> for migrate_vm, clone_vm and move_vm_disk
> 
> Signed-off-by: Stoiko Ivanov <s.ivanov at proxmox.com>
> ---
>  PVE/API2/Qemu.pm | 28 ++++++++++++++++++++++++++--
>  1 file changed, 26 insertions(+), 2 deletions(-)
> 
> diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
> index 99e37d8..eb31a54 100644
> --- a/PVE/API2/Qemu.pm
> +++ b/PVE/API2/Qemu.pm
> @@ -2649,6 +2649,12 @@ __PACKAGE__->register_method({
>  		description => "Target node. Only allowed if the original VM is on shared storage.",
>  		optional => 1,
>  	    }),
> +	    bwlimit => {
> +		description => "Override i/o bandwidth limit (in KiB/s).",

I/O

> +		optional => 1,
> +		type => 'integer',
> +		minimum => '0',
> +	    },
>          },
>      },
>      returns => {
> @@ -2834,16 +2840,20 @@ __PACKAGE__->register_method({
>  
>  		    PVE::Storage::activate_volumes($storecfg, $vollist, $snapname);
>  
> +		    my $bwlimit = extract_param($param, 'bwlimit');
> +
>  		    my $total_jobs = scalar(keys %{$drives});
>  		    my $i = 1;
>  
>  		    foreach my $opt (keys %$drives) {
>  			my $drive = $drives->{$opt};
> +			my $src_sid = PVE::Storage::parse_volume_id($drive->{file});
>  			my $skipcomplete = ($total_jobs != $i); # finish after last drive
>  
> +			my $clonelimit = PVE::Storage::get_bandwidth_limit('clone', [$src_sid, $storage], $bwlimit);

style nit: keep $src_sid and above together, unseperated, and keep the empty line
before below call makes this a bit easier to read, IMO


>  			my $newdrive = PVE::QemuServer::clone_disk($storecfg, $vmid, $running, $opt, $drive, $snapname,
>  								   $newid, $storage, $format, $fullclone->{$opt}, $newvollist,
> -								   $jobs, $skipcomplete, $oldconf->{agent});
> +								   $jobs, $skipcomplete, $oldconf->{agent}, $clonelimit);
>  
>  			$newconf->{$opt} = PVE::QemuServer::print_drive($vmid, $newdrive);
>  
> @@ -2949,6 +2959,12 @@ __PACKAGE__->register_method({
>  		maxLength => 40,
>  		optional => 1,
>  	    },
> +	    bwlimit => {
> +		description => "Override i/o bandwidth limit (in KiB/s).",

I/O

> +		optional => 1,
> +		type => 'integer',
> +		minimum => '0',
> +	    },
>  	},
>      },
>      returns => {
> @@ -3026,8 +3042,10 @@ __PACKAGE__->register_method({
>  		    warn "moving disk with snapshots, snapshots will not be moved!\n"
>  			if $snapshotted;
>  
> +		    my $bwlimit = extract_param($param, 'bwlimit');
> +		    my $movelimit = PVE::Storage::get_bandwidth_limit('move', [$oldstoreid, $storeid], $bwlimit);

add newline

>  		    my $newdrive = PVE::QemuServer::clone_disk($storecfg, $vmid, $running, $disk, $drive, undef,
> -							       $vmid, $storeid, $format, 1, $newvollist);
> +							       $vmid, $storeid, $format, 1, $newvollist, undef, undef, undef, $movelimit);
>  
>  		    $conf->{$disk} = PVE::QemuServer::print_drive($vmid, $newdrive);
>  
> @@ -3124,6 +3142,12 @@ __PACKAGE__->register_method({
>  		optional => 1,
>  		completion => \&PVE::QemuServer::complete_storage,
>              }),
> +	    bwlimit => {
> +		description => "Override i/o bandwidth limit (in KiB/s).",

I/O

also a small note that $param gets passed to PVE::QemuMigrate->migrate which handles
this already could have reduced a single head-scratch ;-)

> +		optional => 1,
> +		type => 'integer',
> +		minimum => '0',
> +	    },
>  	},
>      },
>      returns => {
> 




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