[pve-devel] [PATCH v3 storage 1/2] volume_resize: use KiB instead of bytes

Fabian Ebner f.ebner at proxmox.com
Mon Feb 17 12:41:23 CET 2020


Avoid some problems with 'qemu-img resize', which expects
that the size is a multiple of 512 bytes for qcow2 images.

Since vdisk_alloc already uses KiB, this also improves
consistency a little.

The tests for ZFS are also adapted to the new interface.

Signed-off-by: Fabian Ebner <f.ebner at proxmox.com>
---

Changes from v2:
    * align to 1024 instead of 512 bytes
    * change the interface for volume_resize

Because of the interface change, dependency bumps are needed.

 PVE/Storage/DRBDPlugin.pm      |  2 +-
 PVE/Storage/LVMPlugin.pm       |  2 +-
 PVE/Storage/Plugin.pm          |  2 +-
 PVE/Storage/RBDPlugin.pm       |  2 +-
 PVE/Storage/ZFSPoolPlugin.pm   |  2 +-
 test/run_test_zfspoolplugin.pl | 26 +++++++++++++-------------
 6 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/PVE/Storage/DRBDPlugin.pm b/PVE/Storage/DRBDPlugin.pm
index dbae4d1..353c86d 100644
--- a/PVE/Storage/DRBDPlugin.pm
+++ b/PVE/Storage/DRBDPlugin.pm
@@ -352,7 +352,7 @@ sub deactivate_volume {
 sub volume_resize {
     my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
 
-    $size = ($size/1024/1024) . "M";
+    $size = ($size/1024) . "M";
 
     my $path = $class->path($scfg, $volname);
 
diff --git a/PVE/Storage/LVMPlugin.pm b/PVE/Storage/LVMPlugin.pm
index f02c110..edc6843 100644
--- a/PVE/Storage/LVMPlugin.pm
+++ b/PVE/Storage/LVMPlugin.pm
@@ -524,7 +524,7 @@ sub deactivate_volume {
 sub volume_resize {
     my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
 
-    $size = ($size/1024/1024) . "M";
+    $size = ($size/1024) . "M";
 
     my $path = $class->path($scfg, $volname);
     my $cmd = ['/sbin/lvextend', '-L', $size, $path];
diff --git a/PVE/Storage/Plugin.pm b/PVE/Storage/Plugin.pm
index 0c39cbd..bb3f0a9 100644
--- a/PVE/Storage/Plugin.pm
+++ b/PVE/Storage/Plugin.pm
@@ -747,7 +747,7 @@ sub volume_resize {
 
     my $format = ($class->parse_volname($volname))[6];
 
-    my $cmd = ['/usr/bin/qemu-img', 'resize', '-f', $format, $path , $size];
+    my $cmd = ['/usr/bin/qemu-img', 'resize', '-f', $format, $path, "${size}K"];
 
     run_command($cmd, timeout => 10);
 
diff --git a/PVE/Storage/RBDPlugin.pm b/PVE/Storage/RBDPlugin.pm
index 0a33ec0..dfe14fd 100644
--- a/PVE/Storage/RBDPlugin.pm
+++ b/PVE/Storage/RBDPlugin.pm
@@ -680,7 +680,7 @@ sub volume_resize {
 
     my ($vtype, $name, $vmid) = $class->parse_volname($volname);
 
-    my $cmd = &$rbd_cmd($scfg, $storeid, 'resize', '--allow-shrink', '--size', ($size/1024/1024), $name);
+    my $cmd = &$rbd_cmd($scfg, $storeid, 'resize', '--allow-shrink', '--size', ($size/1024), $name);
     run_rbd_command($cmd, errmsg => "rbd resize '$volname' error");
     return undef;
 }
diff --git a/PVE/Storage/ZFSPoolPlugin.pm b/PVE/Storage/ZFSPoolPlugin.pm
index d72ee16..dbe0465 100644
--- a/PVE/Storage/ZFSPoolPlugin.pm
+++ b/PVE/Storage/ZFSPoolPlugin.pm
@@ -645,7 +645,7 @@ sub create_base {
 sub volume_resize {
     my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
 
-    my $new_size = int($size/1024);
+    my $new_size = $size;
 
     my (undef, $vname, undef, undef, undef, undef, $format) =
         $class->parse_volname($volname);
diff --git a/test/run_test_zfspoolplugin.pl b/test/run_test_zfspoolplugin.pl
index 9c5e841..8a78144 100755
--- a/test/run_test_zfspoolplugin.pl
+++ b/test/run_test_zfspoolplugin.pl
@@ -2415,15 +2415,15 @@ $tests->{3} = $test3;
 my $test2 = sub {
 
     print "\nrun test2 \"volume_resize\"\n";
-    my $newsize = ($volsize + 1) * 1024 * 1024 * 1024;
+    my $newsize = ($volsize + 1) * 1024 * 1024;
 
     eval {
-	if (($newsize/1024) !=
+	if ($newsize !=
 	    PVE::Storage::volume_resize($cfg, "$storagename:$vmdisk", $newsize, 0)) {
 	    $count++;
 	    warn "Test2 a failed";
 	}
-	if ($newsize  !=
+	if (($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$vmdisk")) {
 	    $count++;
 	    warn "Test2 a failed";
@@ -2435,8 +2435,8 @@ my $test2 = sub {
     }
 
     eval {
-	warn "Test2 b failed" if ($newsize/1024) != PVE::Storage::volume_resize($cfg, "$storagename:$vmbase", $newsize, 0);
-	warn "Test2 b failed" if $newsize  !=
+	warn "Test2 b failed" if $newsize != PVE::Storage::volume_resize($cfg, "$storagename:$vmbase", $newsize, 0);
+	warn "Test2 b failed" if ($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$vmbase");
     };
     if ($@) {
@@ -2445,11 +2445,11 @@ my $test2 = sub {
     }
 
     eval {
-	if (($newsize/1024) != PVE::Storage::volume_resize($cfg, "$storagename:$vmbase\/$vmlinked", $newsize, 0)) {
+	if ($newsize != PVE::Storage::volume_resize($cfg, "$storagename:$vmbase\/$vmlinked", $newsize, 0)) {
 	    $count++;
 	    warn "Test2 c failed";
 	}
-	if ($newsize  !=
+	if (($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$vmbase\/$vmlinked")) {
 	    $count++;
 	    warn "Test2 c failed";
@@ -2461,11 +2461,11 @@ my $test2 = sub {
     }
 
     eval {
-	if (($newsize/1024) != PVE::Storage::volume_resize($cfg, "$storagename:$ctdisk", $newsize, 0)) {
+	if ($newsize != PVE::Storage::volume_resize($cfg, "$storagename:$ctdisk", $newsize, 0)) {
 	    $count++;
 	    warn "Test2 d failed";
 	}
-	if ($newsize  !=
+	if (($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$ctdisk")) {
 	    $count++;
 	    warn "Test2 d failed"
@@ -2477,12 +2477,12 @@ my $test2 = sub {
     }
 
     eval {
-	if (($newsize/1024) !=
+	if ($newsize !=
 	    PVE::Storage::volume_resize($cfg, "$storagename:$ctbase", $newsize, 0)) {
 	    $count++;
 	    warn "Test2 e failed";
 	}
-	if ($newsize  !=
+	if (($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$ctbase")) {
 	    $count++;
 	    warn "Test2 e failed";
@@ -2494,12 +2494,12 @@ my $test2 = sub {
     }
 
     eval {
-	if (($newsize/1024) !=
+	if ($newsize !=
 	    PVE::Storage::volume_resize($cfg, "$storagename:$ctbase\/$ctlinked", $newsize, 0)) {
 	    $count++;
 	    warn "Test2 f failed";
 	}
-	if ($newsize  !=
+	if (($newsize * 1024) !=
 	    PVE::Storage::volume_size_info($cfg, "$storagename:$ctbase\/$ctlinked")) {
 	    $count++;
 	    warn "Test2 f failed";
-- 
2.20.1





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