K 10 svn:author V 3 sef K 8 svn:date V 27 2000-11-01T20:19:48.000000Z K 7 svn:log V 240 Be much, much more paranoid on allowing I/O operations on procfs nodes. Do this by (for now, at least) re-instating the previously-removed CHECKIO() macro. Reviewed by: Robert Watson , Kris Kennaway END