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Date: Tue, 08 Mar 2011 22:38:09 +0100
From: Mordae <mordae@anilinux.org>
Message-ID: <056c7b49e7540a910b8a4f664415e638@anilinux.org>
Subject: COW userspace memory mapping question
Sender: owner-linux-mm@kvack.org
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To: linux-mm@kvack.org

Hi,

first let me apologize if I've picked a wrong address.

Question: Is it possible to create a copy-on-write copy
          of a MAP_PRIVATE|MAP_ANONYMOUS memory mapping
          in the user space? Effectively a snapshot of
          memory region.

          I understand that clone() optionally does this
          on much larger scale, but that's not really it.

Best regards,
    Jan Dvorak

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