[libvirt] [PATCH 9/9] Virsh support for vol zeroing

[David Allan]

---
 tools/virsh.c |   42 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 42 insertions(+), 0 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index a6a637d..e52b011 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -5221,6 +5221,47 @@ cmdVolDelete(vshControl *ctl, const vshCmd *cmd)


 /*
+ * "vol-zero-out" command
+ */
+static const vshCmdInfo info_vol_zero_out[] = {
+    {"help", gettext_noop("zero out a vol")},
+    {"desc", gettext_noop("Ensure further reads from a volume return zeroes.")},
+    {NULL, NULL}
+};
+
+static const vshCmdOptDef opts_vol_zero_out[] = {
+    {"pool", VSH_OT_STRING, 0, gettext_noop("pool name or uuid")},
+    {"vol", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("vol name, key or path")},
+    {NULL, 0, 0, NULL}
+};
+
+static int
+cmdVolZeroOut(vshControl *ctl, const vshCmd *cmd)
+{
+    virStorageVolPtr vol;
+    int ret = TRUE;
+    char *name;
+
+    if (!vshConnectionUsability(ctl, ctl->conn, TRUE))
+        return FALSE;
+
+    if (!(vol = vshCommandOptVol(ctl, cmd, "vol", "pool", &name))) {
+        return FALSE;
+    }
+
+    if (virStorageVolZeroOut(vol, 0) == 0) {
+        vshPrint(ctl, _("Vol %s zeroed out\n"), name);
+    } else {
+        vshError(ctl, _("Failed to zero out vol %s"), name);
+        ret = FALSE;
+    }
+
+    virStorageVolFree(vol);
+    return ret;
+}
+
+
+/*
  * "vol-info" command
  */
 static const vshCmdInfo info_vol_info[] = {
@@ -7758,6 +7799,7 @@ static const vshCmdDef commands[] = {
     {"vol-create-as", cmdVolCreateAs, opts_vol_create_as, info_vol_create_as},
     {"vol-clone", cmdVolClone, opts_vol_clone, info_vol_clone},
     {"vol-delete", cmdVolDelete, opts_vol_delete, info_vol_delete},
+    {"vol-zero-out", cmdVolZeroOut, opts_vol_zero_out, info_vol_zero_out},
     {"vol-dumpxml", cmdVolDumpXML, opts_vol_dumpxml, info_vol_dumpxml},
     {"vol-info", cmdVolInfo, opts_vol_info, info_vol_info},
     {"vol-list", cmdVolList, opts_vol_list, info_vol_list},
-- 
1.6.5.5