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    SubjectRe: [PATCH 2/3] swsusp: Do not use page flags
    On Mon, 12 Mar 2007 22:19:20 +0100
    "Rafael J. Wysocki" <rjw@sisk.pl> wrote:

    > Make swsusp use memory bitmaps instead of page flags for marking 'nosave' and
    > free pages. This allows us to 'recycle' two page flags that can be used for other
    > purposes. Also, the memory needed to store the bitmaps is allocated when
    > necessary (ie. before the suspend) and freed after the resume which is more
    > reasonable.
    >
    > The patch is designed to minimize the amount of changes and there are some nice
    > simplifications and optimizations possible on top of it. I am going to
    > implement them separately in the future.

    Blows up with ia64 allmodconfig due to CONFIG_PM=y, CONFIG_SOFTWARE_SUSPEND=n:

    kernel/power/main.c:223: error: redefinition of 'software_suspend'
    include/linux/suspend.h:46: error: previous definition of 'software_suspend' was here

    I had a look at fixing it, but it's unobvious why we're compiling most of
    kernel/power/main.c when CONFIG_SOFTWARE_SUSPEND=n so I'll send this series
    back for repair please.
    -
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