Re: mmap64 for PA

[Ulrich Drepper]

address@hidden (Matthew Wilcox) writes:

> Would you like a patch for powerpc/mmap64.c then?
> 
> #ifdef __NR_mmap2
>   if (
> # ifndef __ASSUME_MMAP2_SYSCALL
>       ! have_no_mmap2 &&
> # endif
>       ! (offset & ((1 << PAGE_SHIFT)-1)))
>     {

Well, yes, the code is not optimal.  Let me change it a bit...  (a
little bit later) ... done.  Please try this version.  I haven't
compiled it myself (yet).

> the kernel hardcodes 12-bits as the `page size' presented to mmap2,
> just as sparc32 does.  in fact only PA2.0 can have page sizes other
> than 4k, and all pa 2.0 processors can be run in 64-bit mode, so mmap2
> becomes irrelevant.

Well, this doesn't mean that nobody wants to run PA2.0 in 32-bit mode.
If you say the kernel will never support it, fine.

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