On Tue, May 05, 2015 at 10:51:14AM +0800, Fam Zheng wrote:
This function is complex. I had to draw a diagram to remember the
relationships between the variables. It would be nice to split it if
that can be done in a way that makes the code nicer.
@@ -1236,13 +1238,39 @@ static int
For zero write, qiov passed by callers (qemu-io write -z and scsi-disk
write same) is NULL.
Commit fc3959e466 fixed bdrv_co_write_zeroes which is the common case
for this bug, but it still exists in bdrv_aio_write_zeroes. A simpler
fix would be in bdrv_co_do_pwritev which is the NULL dereference
