/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * fundamental constants and types of the implementation * changing any of these changes the layout on disk */ /* the glorious new, incompatible (on disk) 64-bit world */ /* keeping NAMELEN ≤ 50 bytes permits 3 Dentrys per mag disk sector */enum {	NAMELEN		= 56,		/* max size of file name components */	NDBLOCK		= 6,		/* number of direct blocks in Dentry */	NIBLOCK		= 4,		/* max depth of indirect blocks */}; /* * file offsets & sizes, in bytes & blocks.  typically long or vlong. * vlong is used in the code where would be needed if Off were just long. */typedef vlong Off; #undef COMPAT32#define swaboff swab8