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    SubjectRe: [PATCH 1/4] [mm] buddy page allocator: add tunable big order allocation
    On Mon, 12 May 2008 18:32:02 +0800
    Bryan Wu <cooloney@kernel.org> wrote:

    > From: Michael Hennerich <michael.hennerich@analog.com>
    >
    > Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
    > Signed-off-by: Bryan Wu <cooloney@kernel.org>

    Does this really solve your problem ? possible hang-up is better than
    page allocation failure ?

    > ---
    > init/Kconfig | 9 +++++++++
    > mm/page_alloc.c | 2 +-
    > 2 files changed, 10 insertions(+), 1 deletions(-)
    >
    > diff --git a/init/Kconfig b/init/Kconfig
    > index 6135d07..b6ff75b 100644
    > --- a/init/Kconfig
    > +++ b/init/Kconfig
    > @@ -742,6 +742,15 @@ config SLUB_DEBUG
    > SLUB sysfs support. /sys/slab will not exist and there will be
    > no support for cache validation etc.
    >
    > +config BIG_ORDER_ALLOC_NOFAIL_MAGIC
    > + int "Big Order Allocation No FAIL Magic"
    > + depends on EMBEDDED
    > + range 3 10
    > + default 3
    > + help
    > + Let big-order allocations loop until memory gets free. Specified Value
    > + expresses the order.
    > +
    I think it's better to add a text to explain why this is for EMBEDED.

    Thanks,
    -Kame



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