[Libguestfs] [PATCH 3/4] New API: pvresize-size to allow shrinking PVs (RHBZ#585222).
Richard W.M. Jones
rjones at redhat.com
Fri May 21 13:53:35 UTC 2010
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top
-------------- next part --------------
>From 9be89728f2a0ff17d54a0dba981015fa6405eb50 Mon Sep 17 00:00:00 2001
From: Richard Jones <rjones at redhat.com>
Date: Fri, 21 May 2010 14:14:25 +0100
Subject: [PATCH 3/4] New API: pvresize-size to allow shrinking PVs (RHBZ#585222).
---
daemon/lvm.c | 24 ++++++++++++++++++++++++
src/generator.ml | 7 +++++++
2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/daemon/lvm.c b/daemon/lvm.c
index 18d6519..70c3c90 100644
--- a/daemon/lvm.c
+++ b/daemon/lvm.c
@@ -20,6 +20,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <inttypes.h>
#include <string.h>
#include <unistd.h>
@@ -453,6 +454,29 @@ do_pvresize (const char *device)
}
int
+do_pvresize_size (const char *device, int64_t size)
+{
+ char *err;
+ int r;
+
+ char buf[32];
+ snprintf (buf, sizeof buf, "%" PRIi64 "b", size);
+
+ r = command (NULL, &err,
+ "lvm", "pvresize",
+ "--setphysicalvolumesize", buf,
+ device, NULL);
+ if (r == -1) {
+ reply_with_error ("%s: %s", device, err);
+ free (err);
+ return -1;
+ }
+
+ free (err);
+ return 0;
+}
+
+int
do_vg_activate (int activate, char *const *volgroups)
{
char *err;
diff --git a/src/generator.ml b/src/generator.ml
index b2ba513..1032a1a 100755
--- a/src/generator.ml
+++ b/src/generator.ml
@@ -4693,6 +4693,13 @@ See also C<guestfs_pread>.");
This command is the same as C<guestfs_resize2fs> except that it
allows you to specify the new size (in bytes) explicitly.");
+ ("pvresize_size", (RErr, [Device "device"; Int64 "size"]), 249, [Optional "lvm2"],
+ [],
+ "resize an LVM physical volume (with size)",
+ "\
+This command is the same as C<guestfs_pvresize> except that it
+allows you to specify the new size (in bytes) explicitly.");
+
]
let all_functions = non_daemon_functions @ daemon_functions
--
1.6.6.1
More information about the Libguestfs
mailing list