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SubjectRe: [patch - repost] do_no_pfn handler
Jes Sorensen wrote:

> --- 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);

Minor nit: make this unsigned long?

> 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);
> @@ -612,6 +613,12 @@
> #define NOPAGE_OOM ((struct page *) (-1))
>
> /*
> + * Error return values for the *_nopfn functions
> + */
> +#define NOPFN_SIGBUS ((unsigned long) -1)
> +#define NOPFN_OOM ((unsigned long) -2)

--
SUSE Labs, Novell Inc.
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