K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2014-09-12T08:39:15.275190Z
K 7
svn:log
V 218
- Provide a sleepable lock to protect against ioctl() vs ioctl() races.
- Use the new lock to protect against simultaneous DIOCSTART and/or
  DIOCSTOP ioctls.

Reported & tested by:	jmallett
Sponsored by:		Nginx, Inc.

END