标签:struct add turn spi minor roc 超级 super type
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");
标签:struct add turn spi minor roc 超级 super type
原文地址:https://www.cnblogs.com/lucelujiaming/p/9467878.html