Re: [PATCH] proc_file_read() (Was: Re: proc_file_read() question)

Roman Zippel (zippel@linux-m68k.org)
Wed, 27 Jun 2001 23:32:14 +0200


Hi,

Martin Wilck wrote:

> Hum - is there no simple way to determine whether a pointer is
> a valid pointer to something returned by __get_free_pages ()? You are
> right, S390 in particular seems to allow arbitrary addresses starting from
> 0.

M68k does so too, although the first page is never used and usually
unmapped to catch NULL pointers.

bye, Roman
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