Revision 79758e95
| ID | 79758e95d7f018dabd726bf7eb8cdd087692410c |
qemu/virtio: make wmb compiler barrier + comments
wmb must be at least a compiler barrier, even without SMP.
Further, we likely need some rmb()/mb() as well:
I have not audited the code but lguest has mb(),
add a comment for now.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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