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Message-Id: <20080211095018.6AF7E1B41CE@basil.firstfloor.org>
Date: Mon, 11 Feb 2008 10:50:18 +0100 (CET)
From: Andi Kleen <ak@...e.de>
To: tglx@...utronix.de, mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: [PATCH] [3/8] CPA: Fix some incorrect comments in the debug pagealloc code
Even with the pool cpa in debug_pagealloc can fail (e.g. consider memory hotplug)
Also the code does not clear PSE anymore as the comment claims.
Replace wrong comment with correct one.
Signed-off-by: Andi Kleen <ak@...e.de>
---
arch/x86/mm/pageattr.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
Index: linux/arch/x86/mm/pageattr.c
===================================================================
--- linux.orig/arch/x86/mm/pageattr.c
+++ linux/arch/x86/mm/pageattr.c
@@ -864,10 +864,7 @@ void kernel_map_pages(struct page *page,
if (!debug_pagealloc_enabled)
return;
- /*
- * The return value is ignored - the calls cannot fail,
- * large pages are disabled at boot time:
- */
+ /* This can fail in theory but then you're out of luck */
if (enable)
__set_pages_p(page, numpages);
else
--
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