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qcow2: fix unaligned access

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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: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Aurelien Jarno 2011-01-01 21:50:34 +01:00 committed by Kevin Wolf
parent 0bfe006c53
commit 653df36bbe
1 changed files with 1 additions and 1 deletions
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2
block/qcow2-cluster.c
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@ -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;