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Message-Id: <20070921223213.D92CC13DCD@wotan.suse.de> Date: Sat, 22 Sep 2007 00:32:13 +0200 (CEST) From: Andi Kleen <ak@...e.de> To: patches@...-64.org, linux-kernel@...r.kernel.org Subject: [PATCH] [15/50] x86_64: Return EINVAL for unknown address in change_page_attr Matches what i386 does and makes more sense. Signed-off-by: Andi Kleen <ak@...e.de> --- arch/x86_64/mm/pageattr.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) Index: linux/arch/x86_64/mm/pageattr.c =================================================================== --- linux.orig/arch/x86_64/mm/pageattr.c +++ linux/arch/x86_64/mm/pageattr.c @@ -151,7 +151,9 @@ __change_page_attr(unsigned long address pgprot_t ref_prot2; kpte = lookup_address(address); - if (!kpte) return 0; + if (!kpte) + return -EINVAL; + kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK); BUG_ON(PageCompound(kpte_page)); BUG_ON(PageLRU(kpte_page)); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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