From: David S. Miller <davem@davemloft.net>
Date: Wed, 27 Jul 2005 23:08:44 +0000 (-0700)
Subject: [SPARC64]: Fix ugly dependency on NR_CPUS being a power-of-2.
X-Git-Tag: v2.6.13-rc4~25^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48b0e5487fcdcb3421bda67666277348b2bd2661;p=pandora-kernel.git

[SPARC64]: Fix ugly dependency on NR_CPUS being a power-of-2.

The page->flags D-cache dirty state tracking depended upon
NR_CPUS being a power-of-2 via it's "NR_CPUS - 1" masking.

Fix that to use a fixed (256 - 1) mask as that is the limit
imposed by thread_info->cpu which is a "u8".

Finally, add a compile time check that NR_CPUS is not greater
than 256.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

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