Re: Calling user functions from kernel

From: Stephen C. Tweedie (sct@redhat.com)
Date: Thu Mar 02 2000 - 07:25:17 EST


Hi,

On Wed, 1 Mar 2000 17:02:01 +0200 (EET), Aydin Okutanoglu
<aydin@lcsl.metu.edu.tr> said:

> I change the page_fault handler of a vma, and in the
> new page_fault handler code i want to call a user function who the
> faulting vma belongs to.

You can do all of this in user space anyway, by setting up a SIGSEGV
handler to deal with the page faults. You can even use
mprotect(PROT_NONE) to force page faults on access to perfectly-valid,
resident pages.

--Stephen

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