Carsten Otte wrote: > 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. Hi Carsten, The address comes from handle_pte_fault() passing it to do_no_pfn() passing it to ->nopfn(), ie. it's the faulted address, not the physical one. > 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 :-). :-) Cheers, Jes - : send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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