Commit 653df36b authored by Aurelien Jarno's avatar Aurelien Jarno Committed by Kevin Wolf
Browse files

qcow2: fix unaligned access 



cpu_to_be64w() is called with an obviously non-aligned pointer. Use
cpu_to_be64wu() instead. It fixes unaligned accesses errors on IA64
hosts.

Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 0bfe006c

block/qcow2-cluster.c

+1 −1
Original line number Diff line number Diff line
@@ -81,7 +81,7 @@ int qcow2_grow_l1_table(BlockDriverState *bs, int min_size, bool exact_size) 
    /* set new table */

    BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE);

    cpu_to_be32w((uint32_t*)data, new_l1_size);

    cpu_to_be64w((uint64_t*)(data + 4), new_l1_table_offset);

    cpu_to_be64wu((uint64_t*)(data + 4), new_l1_table_offset);

    ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), data,sizeof(data));

    if (ret < 0) {

        goto fail;