symlink.c

来自「嵌入式系统设计与实例开发实验教材二源码 多线程应用程序设计 串行端口程序设计」· C语言 代码 · 共 40 行

/*
 *  linux/fs/ext3/symlink.c
 *
 * Only fast symlinks left here - the rest is done by generic code. AV, 1999
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card ([e-mail])
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/fs/minix/symlink.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  ext3 symlink handling code
 */

#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>

static int ext3_readlink(struct dentry *dentry, char *buffer, int buflen)
{
	char *s = (char *)dentry->d_inode->u.ext3_i.i_data;
	return vfs_readlink(dentry, buffer, buflen, s);
}

static int ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
{
	char *s = (char *)dentry->d_inode->u.ext3_i.i_data;
	return vfs_follow_link(nd, s);
}

struct inode_operations ext3_fast_symlink_inode_operations = {
	readlink:	ext3_readlink,		/* BKL not held.  Don't need */
	follow_link:	ext3_follow_link,	/* BKL not held.  Don't need */
};