qcow2: reorder fields in Qcow2CachedTable to reduce padding Changing the current ordering saves 8 bytes per cache entry in x86_64. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 0bd55291211df3dfb514d0e7d2031dd5c4f9f807.1438690126.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>