anyone know what a "lockless ioctl" is?

[Robert P. J. Day]

  reading a course outline and there's a reference to "lockless
ioctls".  no idea what that is, and google doesn't make it any
clearer:

http://www.google.ca/#hl=en&sclient=psy-ab&q=%22lockless+ioctl%22&oq=%22lockless+ioctl%22&aq=f&aqi=&aql=&gs_l=hp.3...1480.3588.0.3748.16.16.0.0.0.0.221.1642.10j5j1.16.0...0.0.noPYe58Fdcg&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=f4bd7f4bc3a9df92&biw=1060&bih=925

did such a thing ever exist?

rday

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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