| commit | 61914f8906fabbae26372a576d9dd988c5e22b75 | |
| author | Stefan Hajnoczi <stefanha@redhat.com> | |
| Mon, 18 Feb 2019 10:45:24 +0000 (18 10:45 +0000) | ||
| committer | Max Reitz <mreitz@redhat.com> | |
| Mon, 25 Feb 2019 14:11:28 +0000 (25 15:11 +0100) | ||
| tree | b820fc218ba85f7912764924cee8218e512e16e4 | treesnapshot (tar.gz zip) |
| parent | 8a57a4be8389073d8bdb5d5d22e50d6282a36df0 | commitdiff |
qcow2: include LUKS payload overhead in qemu-img measure
LUKS encryption reserves clusters for its own payload data. The size of
this area must be included in the qemu-img measure calculation so that
we arrive at the correct minimum required image size.
(Ab)use the qcrypto_block_create() API to determine the payload
overhead. We discard the payload data that qcrypto thinks will be
written to the image.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190218104525.23674-2-stefanha@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
LUKS encryption reserves clusters for its own payload data. The size of
this area must be included in the qemu-img measure calculation so that
we arrive at the correct minimum required image size.
(Ab)use the qcrypto_block_create() API to determine the payload
overhead. We discard the payload data that qcrypto thinks will be
written to the image.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190218104525.23674-2-stefanha@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
| block/qcow2.c | diffblobblamehistory |