Re: [RFC/PATCH] revoke/frevoke system calls

Hi,

Edgar Toernig writes:

> Urgs, so any user may remove mappings from another process and
> let it crash?

On 7/22/06, Albert Cahalan <[email protected]> wrote:

Two good solutions come to mind:

a. substitute the zero page
b. make the mapping private and touch it as if C-O-W happened

Actually, I think revokeat() and frevoke() should be consistent with
mmap which will make a process go SIGBUS if it attempts to write to
truncated shared mapping.

                                         Pekka
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