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

From: Ulrich Drepper
Date: Fri Jun 29 2007 - 01:10:17 EST


On 6/28/07, Rik van Riel <riel@xxxxxxxxxx> 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().
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/