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SubjectRe: locking pages in memory, mapping memory
Alan Cox writes:
> > 1. I would like to map a buffer from user address space to kernel address
> > space, so that a user application can write data to this buffer
> > and the kernel than can read this data WITHOUT having to copy
> > it from user to kernel space (and vice versa)
>
> You want to map a buffer in kernel address space into user address space,
> same effect but its a whole lot easier, and they are implicitly locked
>
> The sound drivers do exactly this for one example.
>

Alan,

can you please point me to some syscalls and/or specific files
I can look at?

Thanks a lot,
Olaf

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