1. 根目录:
2. fs
3. yaffs2
4. yportenv.h

/*
 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
 *
 * Copyright (C) 2002-2010 Aleph One Ltd.
 *   for Toby Churchill Ltd and Brightstar Engineering
 *
 * Created by Charles Manning <charles@aleph1.co.uk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 2.1 as
 * published by the Free Software Foundation.
 *
 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
 */

#ifndef __YPORTENV_LINUX_H__
#define __YPORTENV_LINUX_H__

#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/xattr.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/stat.h>
#include <linux/sort.h>
#include <linux/bitops.h>

#define YCHAR char
#define YUCHAR unsigned char
#define _Y(x)     x

#define YAFFS_LOSTNFOUND_NAME		"lost+found"
#define YAFFS_LOSTNFOUND_PREFIX		"obj"


#define YAFFS_ROOT_MODE			0755
#define YAFFS_LOSTNFOUND_MODE		0700

#define Y_CURRENT_TIME CURRENT_TIME.tv_sec
#define Y_TIME_CONVERT(x) (x).tv_sec

#define compile_time_assertion(assertion) \
	({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })


#ifndef Y_DUMP_STACK
#define Y_DUMP_STACK() dump_stack()
#endif

#define yaffs_trace(msk, fmt, ...) do { \
	if(yaffs_trace_mask & (msk)) \
		printk(KERN_DEBUG "yaffs: " fmt "\n", ##__VA_ARGS__); \
} while(0)

#ifndef YBUG
#define YBUG() do {\
	yaffs_trace(YAFFS_TRACE_BUG,\
		"bug " __FILE__ " %d",\
		__LINE__);\
	Y_DUMP_STACK();\
} while (0)
#endif

#endif