[lkml]   [2009]   [May]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 2/6] ksm: dont allow overlap memory addresses registrations.
    Izik Eidus wrote:
    > Rik van Riel wrote:
    >> Izik Eidus wrote:
    >>> subjects say it all.
    >> Not a very useful commit message.
    >> This makes me wonder, though.
    >> What happens if a user mmaps a 30MB memory region, registers it
    >> with KSM and then unmaps the middle 10MB?
    > User cant break 30MB into smaller one.

    The user can break up the underlying VMAs though.

    I am just wondering out loud if we really want two
    VMA-like objects in the kernel, the VMA itself and
    a separate KSM object, with different semantics.

    Maybe this is fine, but I do think it's a question
    that needs to be thought about.

    All rights reversed.

     \ /
      Last update: 2009-05-06 14:31    [W:0.019 / U:26.496 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site