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    SubjectRe: [PATCH 03/10] ksm: define MADV_MERGEABLE and MADV_UNMERGEABLE
    Izik Eidus wrote:
    > From: Hugh Dickins <hugh.dickins@tiscali.co.uk>
    >
    > The out-of-tree KSM used ioctls on fds cloned from /dev/ksm to register
    > a memory area for merging: we prefer now to use an madvise(2) interface.
    >
    > This patch just defines MADV_MERGEABLE (to tell KSM it may merge pages
    > in this area found identical to pages in other mergeable areas) and
    > MADV_UNMERGEABLE (to undo that).
    >
    > Most architectures use asm-generic, but alpha, mips, parisc, xtensa
    > need their own definitions: included here for mmotm convenience, but
    > we'll probably want to split this and feed pieces to arch maintainers.
    >
    > Based upon earlier patches by Chris Wright and Izik Eidus.
    >
    > Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
    > Signed-off-by: Chris Wright <chrisw@redhat.com>
    > Signed-off-by: Izik Eidus <ieidus@redhat.com>

    Acked-by: Rik van Riel <riel@redhat.com>

    --
    All rights reversed.


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