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block: Image file option amendment

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This patch adds the "amend" option to qemu-img which allows changing
image options on existing image files. It also adds the generic bdrv
implementation which is basically just a wrapper for the image format
specific function.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-09-03 10:09:50 +02:00 • committed by Kevin Wolf
parent 56e023af80
commit 6f176b48f9
6 changed files with 108 additions and 0 deletions
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6
qemu-img-cmds.hx
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@ -67,5 +67,11 @@ DEF("resize", img_resize,
"resize [-q] filename [+ | -]size")
STEXI
@item resize [-q] @var{filename} [+ | -]@var{size}
ETEXI
DEF("amend", img_amend,
"amend [-q] [-f fmt] -o options filename")
STEXI
@item amend [-q] [-f @var{fmt}] -o @var{options} @var{filename}
@end table
ETEXI