diff options
| author | Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> | 2023-09-19 19:58:03 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-10-31 13:51:28 +0100 |
| commit | 26ea27898b2b4e322ab932fb61de8f32cd9e4d72 (patch) | |
| tree | 02e218372161f4e07a441dabf68826878f64d56e /qemu-img-cmds.hx | |
| parent | f93e65ee5175a8f8449913553100747aaafecc4d (diff) | |
qemu-img: add compression option to rebase subcommand
If we rebase an image whose backing file has compressed clusters, we
might end up wasting disk space since the copied clusters are now
uncompressed. In order to have better control over this, let's add
"--compress" option to the "qemu-img rebase" command.
Note that this option affects only the clusters which are actually being
copied from the original backing file. The clusters which were
uncompressed in the target image will remain so.
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Message-ID: <20230919165804.439110-8-andrey.drobyshev@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-img-cmds.hx')
| -rw-r--r-- | qemu-img-cmds.hx | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx index 1b1dab5b17..068692d13e 100644 --- a/qemu-img-cmds.hx +++ b/qemu-img-cmds.hx @@ -88,9 +88,9 @@ SRST ERST DEF("rebase", img_rebase, - "rebase [--object objectdef] [--image-opts] [-U] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] -b backing_file [-F backing_fmt] filename") + "rebase [--object objectdef] [--image-opts] [-U] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] [-c] -b backing_file [-F backing_fmt] filename") SRST -.. option:: rebase [--object OBJECTDEF] [--image-opts] [-U] [-q] [-f FMT] [-t CACHE] [-T SRC_CACHE] [-p] [-u] -b BACKING_FILE [-F BACKING_FMT] FILENAME +.. option:: rebase [--object OBJECTDEF] [--image-opts] [-U] [-q] [-f FMT] [-t CACHE] [-T SRC_CACHE] [-p] [-u] [-c] -b BACKING_FILE [-F BACKING_FMT] FILENAME ERST DEF("resize", img_resize, |