内核的写入模块(Linux)，用于保存从删除到交换的过程页面 [英] Write module of kernel (Linux), which to save the page of process from removing to the swap

问题描述

需要保存进程页面(用户部分！)以免将其删除到交换中.

Need to save the page of process (the user part!) from removing to the swap.

我只需要在内核中执行此操作. (我知道的语言C)

I need to do it in the kernel, only. (language C I know)

(也许在hook_page_list中插入钩子?)

(Maybe insert hook in shrink_page_list?)

我有进程ID，这些ID需要保存并限制系统中的物理内存量(我们填充，而未填充). ID和阈值写入/proc，/dev或/sys.

I have IDs of processes, which need to save and threshold amount of physical memory in the system (We fill, while it isn't filled). IDs and threshold write in /proc, /dev or /sys.

该如何处理?

要查看哪些文件?

要阅读哪些教程?

也许有些例子与此任务相关.

Maybe there are examples that are somehow are related with this task.

信息:我正在编译Debian Lenny的内核，使用Qemu在我的Ubuntu上启动它.

Info: I compilling kernel of Debian Lenny, use Qemu for start it on my Ubuntu.

推荐答案

请参阅get_user_pages. http://www.makelinux.net/ldd3/chp-15-sect-3 .

See get_user_pages. http://www.makelinux.net/ldd3/chp-15-sect-3.

使用get_user_pages，您可以获取所需的任何页面并将其锁定在内存中.

Use get_user_pages, you can get whatever page you want and keep it locked in memory.

更好的是，查看以下来源的评论 http://lxr.free-electrons.com/source/mm/gup .c#L637

Even better, look at the comments on the source at http://lxr.free-electrons.com/source/mm/gup.c#L637

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