| commit | f4d38bef7cc79018e2aa789b0e4c23c3a8cdfca5 | |
| author | Stefan Hajnoczi <stefanha@redhat.com> | |
| Mon, 15 Apr 2013 15:17:31 +0000 (15 17:17 +0200) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Mon, 22 Apr 2013 08:27:58 +0000 (22 10:27 +0200) | ||
| tree | a83c3003f7b316626becabac10cfce1390def876 | treesnapshot (tar.gz zip) |
| parent | 68c0aa6e02f79f8825c0c5dc4c7ed25d524aaa8b | commitdiff |
qcow2: allow sub-cluster compressed write to last cluster
Compression in qcow2 requires image length to be a multiple of the
cluster size. Lift this requirement by zero-padding the final cluster
when necessary. The virtual disk size is still not cluster-aligned, so
the guest cannot access the zero sectors.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Compression in qcow2 requires image length to be a multiple of the
cluster size. Lift this requirement by zero-padding the final cluster
when necessary. The virtual disk size is still not cluster-aligned, so
the guest cannot access the zero sectors.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| block/qcow2.c | diffblobblamehistory |