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When resizing a ZFS volume, align size to 1M

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The size is required to be a multiple of volblocksize. Make sure
that the requirement is always met, so ZFS won't complain when we do
things like 'qm resize 102 scsi1 +0.01G'.

Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
This commit is contained in:
Fabian Ebner
2019-12-09 08:25:53 +01:00
committed by Thomas Lamprecht
parent 3ea55f0532
commit d3e3e5d6bd
1 changed files with 6 additions and 0 deletions
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6
PVE/Storage/ZFSPoolPlugin.pm
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@ -662,6 +662,12 @@ sub volume_resize {
my $attr = $format eq 'subvol' ? 'refquota' : 'volsize'; my $attr = $format eq 'subvol' ? 'refquota' : 'volsize';
# align size to 1M so we always have a valid multiple of the volume block size
if ($format eq 'raw') {
my $padding = (1024 - $new_size % 1024) % 1024;
$new_size = $new_size + $padding;
}
$class->zfs_request($scfg, undef, 'set', "$attr=${new_size}k", "$scfg->{pool}/$vname"); $class->zfs_request($scfg, undef, 'set', "$attr=${new_size}k", "$scfg->{pool}/$vname");
return $new_size; return $new_size;