tree ec0fa35e8156ab868ff5ca3581ec54ed1ad63f5d
parent aa2cba51a0a85dfbd5be58239e59bc5e8b5fb7cf
author Alex Williamson <alex.williamson@redhat.com> 1366927958 -0600
committer Alex Williamson <alex.williamson@redhat.com> 1366927958 -0600

vfio: Convert container->group_lock to rwsem

All current users are writers, maintaining current mutual exclusion.
This lets us add read users next.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>