比如访问
proc/sys/net/ipv4/conf下内容

正常做法是open，read，close

但是proc下这种文件很多，如果需要高效访问，有什么其他技巧吗


我目前想用ioctl，但是不知道proc下这些内容，储存在内核的什么地方

还是使用sysctl？  man了下好像已经废弃了

     Use of this system call was long discouraged: since Linux 2.6.24, uses of this system call result in warnings in the kernel log, and in Linux  5.5,  the  system
       call was finally removed.  Use the /proc/sys interface instead.

       Note  that  on older kernels where this system call still exists, it is available only if the kernel was configured with the CONFIG_SYSCTL_SYSCALL option.  Fur?
       thermore, glibc does not provide a wrapper for this system call, necessitating the use of syscall(2).
--
修改:b0207191 FROM 59.61.184.*
FROM 112.111.1.*