| commit | 79758e95d7f018dabd726bf7eb8cdd087692410c | |
| author | Michael S. Tsirkin <mst@redhat.com> | |
| Mon, 26 Oct 2009 13:17:15 +0000 (26 15:17 +0200) | ||
| committer | Anthony Liguori <aliguori@us.ibm.com> | |
| Fri, 30 Oct 2009 13:39:34 +0000 (30 08:39 -0500) | ||
| tree | 2cf8a7cf6696a35bb3e0f8ad3d9bf8df48894c0b | treesnapshot (tar.gz zip) |
| parent | 1e5b9d2fccb205ed8fc84fb38945b8fb3d225640 | commitdiff |
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>
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>
| hw/virtio.c | diffblobblamehistory |