[Xen-devel] [OSSTEST PATCH 18/26] LVM: Break out lv_create

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

We are going to want to reuse this.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
v14: New patch
---
 Osstest/TestSupport.pm |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index ad017a4..2d1db5d 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -62,7 +62,7 @@ BEGIN {
                       target_install_packages target_install_packages_norec
                       target_jobdir target_extract_jobdistpath_subdir
                       target_extract_jobdistpath
-                      lv_dev_mapper target_guest_lv_name
+                      lv_create lv_dev_mapper target_guest_lv_name
 
                       poll_loop tcpconnect await_tcp
                       contents_make_cpio file_simple_write_contents
@@ -702,6 +702,15 @@ sub poll_loop ($$$&) {
     logm("$what: ok. (${waited}s)");
 }
 
+sub lv_create ($$$) {
+    my ($ho, $vg, $lv, $mb) = @_;
+    my $lvdev = "/dev/$lv/$vg";
+    target_cmd_root($ho, "lvremove -f $lvdev ||:");
+    target_cmd_root($ho, "lvcreate -L ${mb}M -n $lv $vg");
+    target_cmd_root($ho, "dd if=/dev/zero of=$lvdev count=10");
+    return $lvdev;
+}
+
 sub lv_dev_mapper ($$) {
     my ($vg,$lv) = @_;
     $vg =~ s/-/--/g;
@@ -1685,9 +1694,7 @@ sub prepareguest ($$$$$$) {
 
 sub prepareguest_part_lvmdisk ($$$) {
     my ($ho, $gho, $disk_mb) = @_;
-    target_cmd_root($ho, "lvremove -f $gho->{Lvdev} ||:");
-    target_cmd_root($ho, "lvcreate -L ${disk_mb}M -n $gho->{Lv} $gho->{Vg}");
-    target_cmd_root($ho, "dd if=/dev/zero of=$gho->{Lvdev} count=10");
+    lvm_lv_create($ho, $gho->{Vg}, $gho->{Lv}, $disk_mb);
 }
 
 sub make_vhd ($$$) {
-- 
1.7.10.4


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