Re: [patch 0/4] MAP_NOZERO v2 - VM_NOZERO/MAP_NOZERO early summer madness

On 6/28/07, Rik van Riel <[email protected]> wrote:

That wants MAP_PRIVATE so that the kernel can also decide to not
swap these pages out to an unencrypted swap area.

That's not what MAP_PRIVATE means.  MAP_PRIVATE is the opposite of
MAP_SHARED.  It's meaningless for anonymous memory (which is what
ssh-agent etc would use) and for file-backed data it definitely allows
swapping unless you use mlock().
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• References:
  • [patch 0/4] MAP_NOZERO v2 - VM_NOZERO/MAP_NOZERO early summer madness
    • From: Davide Libenzi <[email protected]>
  • Re: [patch 0/4] MAP_NOZERO v2 - VM_NOZERO/MAP_NOZERO early summer madness
    • From: Kyle Moffett <[email protected]>
  • Re: [patch 0/4] MAP_NOZERO v2 - VM_NOZERO/MAP_NOZERO early summer madness
    • From: Rik van Riel <[email protected]>

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