qemu-img: Add 'resize' command to grow/shrink disk images
This patch adds a 'resize' command to grow/shrink disk images. This
allows changing the size of disk images without copying to a new image
file. Currently only raw files support resize.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index f96876a..c079019 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -49,5 +49,11 @@
"rebase [-f fmt] [-u] -b backing_file [-F backing_fmt] filename")
STEXI
@item rebase [-f @var{fmt}] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
+ETEXI
+
+DEF("resize", img_resize,
+ "resize filename [+ | -]size")
+STEXI
+@item rebase @var{filename} [+ | -]@var{size}
@end table
ETEXI
