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hello.c
[code:1:3adb123188]
#include "hello.h"
struct inode * hello_get_inode(struct super_block *, int, struct hello_dir_entry *);
/*Õâ¸öº¯ÊýÊÇÖ±½Ó´Ólinux¸´ÖƹýÀ´µÄ£¬×÷ÓþÍÊÇÏÔʾĿ¼ÀïµÄÎļþÃû£¬Ã»ÓÐÕâ¸ö
º¯ÊýÒ²ÐÐÖ»ÊÇÄãÓÃls¡¢dirÃüÁî¿´²»µ½Ä¿Â¼ÏµÄÎļþ¡£*/
int hello_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
printk("hello_readdir\n");
struct hello_dir_entry * de;
unsigned int ino;
int i;
struct inode *inode = filp->f_dentry->d_inode;
ino = inode->i_ino;
de = (struct hello_dir_entry *) inode->u.generic_ip;
if (!de)
return -EINVAL;
i = filp->f_pos;
switch (i) {
case 0:
if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0)
return 0;
i++;
filp->f_pos++;
/* fall through */
case 1:
if (filldir(dirent, "..", 2, i,
   filp->f_dentry->d_parent->d_inode->i_ino,
   DT_DIR) < 0)
return 0;
i++;
filp->f_pos++;
/* fall through */
default:
de = de->subdir;
i -= 2;
for (;;) {
if (!de)
return 1;
if (!i)
break;
de = de->next;
i--;
}
do {
if (filldir(dirent, de->name, de->namelen, filp->f_pos,
   de->low_ino, de->mode >> 12) < 0)
return 0;
filp->f_pos++;
de = de->next;
} while (de);
}
return 1;
}
int hello_d_revalidate(struct dentry *res, int i){printk("d_revalidate\n");return 0;}
int hello_d_hash(struct dentry *res, struct qstr *name){printk("d_hash\n");return 0;}
int hello_d_compare(struct dentry *res, struct qstr *name, struct qstr *old)
{printk("d_compare\n");return 0;}
int hello_d_delete(struct dentry *res){printk("d_delete\n");return