Need help - Reserving and locking the pages in main memory

From: A V Naga Muni Reddy (nmreddy@sasi.com)
Date: Thu Mar 23 2000 - 00:46:32 EST

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    Hi,

            I need to reserve the pages of main memory
    even in my driver. If i use PG_reserved flag also
    the pages some time get's swapped out and my hardware
    is hanging . This is in kernel 2.2.x
    I am allocating pages by get_free_pages(..).

            This is working fine in 2.3.99-pre1 if i set PG_reserved bit
    and ioremapping again.

    How can i acheive the same in version 2.2.x.

            Where can i find a documentation on using these flags.
    mm.h does not explain it completely??

    - Muni

    -
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