From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 9 Feb 2009 03:22:14 +0000 (+1100)
Subject: crypto: scatterwalk - Avoid flush_dcache_page on slab pages
X-Git-Tag: v2.6.29-rc5~51^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f3e797ad07d52d34983354a77b365dfcd48c1b4;p=pandora-kernel.git

crypto: scatterwalk - Avoid flush_dcache_page on slab pages

It's illegal to call flush_dcache_page on slab pages on a number
of architectures.  So this patch avoids doing so if PageSlab is
true.

In future we can move the flush_dcache_page call to those page
cache users that actually need it.

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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