Scramble corruption fix
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/io_u.c b/io_u.c
index 38efcc1..77069c5 100644
--- a/io_u.c
+++ b/io_u.c
@@ -1137,7 +1137,7 @@
return;
p = io_u->xfer_buf;
- boffset= io_u->offset;
+ boffset = io_u->offset;
for (i = 0; i < nr_blocks; i++) {
/*
@@ -1146,9 +1146,10 @@
* and the actual offset.
*/
offset = (io_u->start_time.tv_usec ^ boffset) & 511;
+ offset &= ~(sizeof(unsigned long long) - 1);
if (offset >= 512 - sizeof(unsigned long long))
offset -= sizeof(unsigned long long);
- *((unsigned long long *) p + offset) = boffset;
+ memcpy(p + offset, &boffset, sizeof(boffset));
end = p + 512 - sizeof(io_u->start_time);
memcpy(end, &io_u->start_time, sizeof(io_u->start_time));