tree 93e2bc0c120bf31c6ed70a95ad95317417df5e3e
parent 8fd9a6365eb8a79a2d8f0e0baa01f4db6345e8dd
author Rusty Russell <rusty@rustcorp.com.au> 1372745114 +0930
committer Rusty Russell <rusty@rustcorp.com.au> 1372745525 +0930

tools/lguest: real barriers.

Lguest guests are UP, but the host is probably SMP, so real barriers are
required in case the device thread and the guest are on different CPUs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>