On Mon, 2011-03-14 at 21:24 +0800, xinyou yan wrote:
> May be it can't be implement.
> I mean . I create a file with a big size .
> Then i write a super block struct ( I define it like the linux)
> Then Inode table.
> Then Date Blocks.
>
> I reimplement some syscall on it .
> I just want to make it like a filesystem .
> However I stop at . How to init all of this struct.
>
> So sorry to make you confuse . English is not my native language , I
> will try to do better than what early i was .

First, don't worry about your English - you're not alone. (My English
usually takes a dive when I wake up)
Second, if I understand you correctly, you plan to:
1. Implement your own syscall.
2. Call the syscall from a user process.
3. Open a file (from within kernel mode).
4. Write data.
5. Close the file.
6. Exit from the syscall.

... And you have to use syscall because it's the assignment. (Making it
impossible to use far less intrusive methods such as procfs,
character-device, ioctl, etc)

Am I correct?

- Gilboa

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