From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 12 Dec 2006 17:14:57 +0000 (+0000)
Subject: [PATCH] Optimize D-cache alias handling on fork
X-Git-Tag: v2.6.20-rc1~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec8c0446b6e2b67b5c8813eb517f4bf00efa99a9;p=pandora-kernel.git

[PATCH] Optimize D-cache alias handling on fork

Virtually index, physically tagged cache architectures can get away
without cache flushing when forking.  This patch adds a new cache
flushing function flush_cache_dup_mm(struct mm_struct *) which for the
moment I've implemented to do the same thing on all architectures
except on MIPS where it's a no-op.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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