Re: [PATCH -mm v2 11/11] mm: remove SH arch_get_unmapped_areafunctions

[Paul Mundt]

On Thu, Jun 21, 2012 at 05:57:15PM -0400, Rik van Riel wrote:
> Remove the SH special variants of arch_get_unmapped_area since
> the generic functions should now be able to handle everything.
> 
> Paul, does anything in NOMMU SH need shm_align_mask?
> 
> Untested because I have no SH hardware.
> 
> Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>
> Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
> Cc: Magnus Damm <magnus.damm@xxxxxxxxx>
> Cc: linux-sh@xxxxxxxxxxxxxxx

We don't particularly need it for the nommu case, it's just using the
default PAGE_SIZE case there. The primary reason for having it defined
is so we can use the same cache alias checking and d-cache purging code
on parts that can operate with or without the MMU enabled.

So it would be nice to have the variable generally accessible regardless
of CONFIG_MMU setting, rather than having to have a private definition
for the nommu case.
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