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

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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             reply	other threads:[~2011-03-08 21:38 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-08 21:38 Mordae [this message]
2011-03-10 19:13 ` COW userspace memory mapping question Christoph Lameter
2011-03-10 21:00   ` Mordae
2011-03-10 21:33     ` Christoph Lameter
2011-03-10 22:11       ` Mordae
2011-03-11 15:15         ` Christoph Lameter
2011-03-11 16:33           ` Jan Dvorak

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