qcow1: Make padding in the header explicit
We were relying on all compilers inserting the same padding in the header struct that is used for the on-disk format. Let's not do that. Mark the struct as packed and insert an explicit padding field for compatibility. Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net>
This commit is contained in:
parent
0a86cb7317
commit
ea54feff58
@ -48,9 +48,10 @@ typedef struct QCowHeader {
|
||||
uint64_t size; /* in bytes */
|
||||
uint8_t cluster_bits;
|
||||
uint8_t l2_bits;
|
||||
uint16_t padding;
|
||||
uint32_t crypt_method;
|
||||
uint64_t l1_table_offset;
|
||||
} QCowHeader;
|
||||
} QEMU_PACKED QCowHeader;
|
||||
|
||||
#define L2_CACHE_SIZE 16
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user