From mboxrd@z Thu Jan  1 00:00:00 1970
From: mindentropy@gmail.com (mindentropy)
Date: Tue, 19 Jul 2011 01:13:02 +0530
Subject: Memory change notifications
In-Reply-To: <CAF+CadsoFXPj-w8iGH1_2V7v0Ktp+BH87289B1_merDZh2PK7A@mail.gmail.com>
References: <CAF+CadsoFXPj-w8iGH1_2V7v0Ktp+BH87289B1_merDZh2PK7A@mail.gmail.com>
Message-ID: <201107190113.03095.mindentropy@gmail.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

>I would like
>to know if is possible to get notified(in that kernel module) every time a
>process change its mapped memory.

I might have misread your question. If you are talking about mremap system 
call you would have to look at nopage method.