memory mapping from user space to kernel space

Greg KH greg at
Sat Sep 19 09:40:00 EDT 2020

On Sat, Sep 19, 2020 at 09:45:33PM +0900, JeongHwan Kim wrote:
> Hi, everyone
> The memory mapping from memory allocated in kernel space to user space is
> possible
> to use mmap, but is it possible to map memory allocated in user space to
> kernel?

It is possible, but very messy and difficult, and strongly discouraged
when ever possible.  What exactly are you trying to do?


greg k-h

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