以下模块打印出超级块中某些字段的内容

以下模块打印出超级块中某些字段的内容。

#include <linux/module.h>

#include <linux/fs.h>

#include <linux/init.h>

#include <linux/list.h>

#include <linux/spinlock.h>

#include <linux/kdev_t.h>

#define SUPER_BLOCKS_ADDRESS 0xc048db0c // from /proc/kallsyms

#define SB_LOCK_ADDRESS      0xc05b2440 //  from /proc/kallsyms

static int __init sbinfo_init(void)

{

struct super_block *sb;

struct list_head *pos;

printk("sb:%d/tinode:%d/n",sizeof(struct super_block),sizeof(struct inode));

printk("/nprint file_sys_type:/n");

spin_lock((spinlock_t *)SB_LOCK_ADDRESS);

list_for_each(pos, (struct list_head *)SUPER_BLOCKS_ADDRESS) {

sb = list_entry(pos, struct super_block, s_list);

printk("dev_t:%d:%d  ", MAJOR(sb->s_dev),MINOR(sb->s_dev));

printk("count:%d  file_type name:%s/n", sb->s_count, sb->s_type->name);

}

spin_unlock((spinlock_t *)SB_LOCK_ADDRESS);

return 0;

}

static void __exit sbinfo_exit(void)

{

printk("unloading..../n");

}

module_init(auditfs_init);

module_exit(auditfs_exit);

MODULE_LICENSE("GPL");

原文地址：https://www.cnblogs.com/lucelujiaming/p/9467878.html