[lkml]   [2006]   [Mar]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [patch] mspec - special memory driver and do_no_pfn handler
    Jes Sorensen wrote:
    > Index: linux-2.6/include/linux/mm.h
    > ===================================================================
    > --- linux-2.6.orig/include/linux/mm.h
    > +++ linux-2.6/include/linux/mm.h
    > @@ -199,6 +199,7 @@
    > void (*open)(struct vm_area_struct * area);
    > void (*close)(struct vm_area_struct * area);
    > struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type);
    > + long (*nopfn)(struct vm_area_struct * area, unsigned long address, int *type);
    > int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock);
    > #ifdef CONFIG_NUMA
    > int (*set_policy)(struct vm_area_struct *vma, struct mempolicy *new);
    If you use address as parameter to nopfn, it won't work with highmem
    on 32bit systems. Alternative would be to use (unsigned long) phys. page
    frame number.

    Your work in memory.c looks like the right thing to do.
    Afaics it will work for xip as well once I figure how to
    do COW. Cool stuff :-).

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-03-17 14:53    [W:0.021 / U:0.236 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site