| commit | 9a9d9dba3ea45b2bd1539db021ff7c2d7bfc2a98 | |
| author | Anthony Liguori <aliguori@us.ibm.com> | |
| Wed, 13 Apr 2011 14:51:47 +0000 (13 15:51 +0100) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Wed, 27 Apr 2011 09:12:50 +0000 (27 11:12 +0200) | ||
| tree | 40cf717dcfcbd28cfcefbe6958cb6046bd675bf1 | treesnapshot (tar.gz zip) |
| parent | 430a3c18064fd3c007048d757e8bd0fff45fcc99 | commitdiff |
qemu-img: allow rebase to a NULL backing file when unsafe
QEMU can drop a backing file so that an image file no longer depends on
the backing file, but this feature has not been exposed in qemu-img.
This is useful in an image streaming usecase or when an image file has
been fully allocated and no reads can hit the backing file anymore.
Since the dropping the backing file can make the image unusable, only
allow this when the unsafe flag has been set.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
QEMU can drop a backing file so that an image file no longer depends on
the backing file, but this feature has not been exposed in qemu-img.
This is useful in an image streaming usecase or when an image file has
been fully allocated and no reads can hit the backing file anymore.
Since the dropping the backing file can make the image unusable, only
allow this when the unsafe flag has been set.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| qemu-img.c | diffblobblamehistory |