| commit | 15684a474286cc2c6106c756ddd095a21d058970 | |
| author | Max Reitz <mreitz@redhat.com> | |
| Fri, 27 Sep 2013 10:14:15 +0000 (27 12:14 +0200) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Fri, 27 Sep 2013 15:22:43 +0000 (27 17:22 +0200) | ||
| tree | f1b5b14f59409ee8b1f20d21696ec1824945becc | treesnapshot (tar.gz zip) |
| parent | 320c70666687db4dd4df8165f9fe6960de782ca9 | commitdiff |
qcow2: count_contiguous_clusters and compression
The function is not intended to be used on compressed clusters and will
not work correctly, if used anyway, since L2E_OFFSET_MASK is not the
right mask for determining the offset of compressed clusters. Therefore,
assert that the first cluster is not compressed and always include the
compression flag in the mask of significant flags, i.e., stop the search
as soon as a compressed cluster occurs.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The function is not intended to be used on compressed clusters and will
not work correctly, if used anyway, since L2E_OFFSET_MASK is not the
right mask for determining the offset of compressed clusters. Therefore,
assert that the first cluster is not compressed and always include the
compression flag in the mask of significant flags, i.e., stop the search
as soon as a compressed cluster occurs.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| block/qcow2-cluster.c | diffblobblamehistory |