然后进入do_mount接口里面进行mount操作
1942 long do_mount(char *dev_name, char *dir_name, char *type_page,1943 unsigned...kern_path(dir_name, LOOKUP_FOLLOW, &path);1963 if (retval)1964 return retval;19651966 retval = security_sb_mount...(&path, dev_name);2004 else2005 retval = do_new_mount(&path, type_page, flags, mnt_flags,2006 dev_name...path_put(&path);2009 return retval;2010 }
通过kern_path来获得挂载点&path
然后通过传递的flag来判断挂载操作, 这些flag可以在man 2 mount...中看到说明,这个与mount命令有区别,