On 29.05.23 17:14, Alexander Ivanov wrote:
The BDRVParallelsState structure contains data_end field that is measured
in sectors. In parallels_open() initially this field is set by data_off
field from parallels image header.
According to the parallels format documentation, data_off field contains
an offset, in sectors, from the start of the file to the start of the
data area. For "WithoutFreeSpace" images: if data_off is zero, the offset
is calculated as the end of the BAT table plus some padding to ensure
sector size alignment.
The parallels_open() function has code for handling zero value in
data_off, but in the result data_end contains the offset in bytes.
Replace the alignment to sector size by division by sector size and fix
the comparision with s->header_size.
Signed-off-by: Alexander Ivanov <alexander.iva...@virtuozzo.com>
Reviewed-by: Denis V. Lunev <d...@openvz.org>
---
block/parallels.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Hanna Czenczek <hre...@redhat.com>
