K 10 svn:author V 4 jeff K 8 svn:date V 27 2005-05-01T00:56:34.000000Z K 7 svn:log V 210 - In devfs_open() and devfs_close() grab Giant if the driver sets NEEDGIANT. We still have to DROP_GIANT and PICKUP_GIANT when NEEDGIANT is not set because vfs is still sometime entered with Giant held. END