linux-kernel - [PATCH 2/2] mm: vmemmap: arm64: add vmemmap

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Message-Id: <1365415000-10389-3-git-send-email-linfeng@cn.fujitsu.com>
Date:	Mon, 8 Apr 2013 17:56:40 +0800
From:	Lin Feng <linfeng@...fujitsu.com>
To:	akpm@...ux-foundation.org
Cc:	cl@...ux.com, tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	yinghai@...nel.org, catalin.marinas@....com, will.deacon@....com,
	arnd@...db.de, tony@...mide.com, ben@...adent.org.uk,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, linux-mm@...ck.org, isimatu.yasuaki@...fujitsu.com,
	Lin Feng <linfeng@...fujitsu.com>
Subject: [PATCH 2/2] mm: vmemmap: arm64: add vmemmap_verify check for hot-add node case

In hot add node(memory) case, vmemmap pages are always allocated from other
node, but the current logic just skip vmemmap_verify check. 
So we should also issue "potential offnode page_structs" warning messages
if we are the case.

Cc: Christoph Lameter <cl@...ux.com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Ben Hutchings <ben@...adent.org.uk>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Reported-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Signed-off-by: Lin Feng <linfeng@...fujitsu.com>
---
 arch/arm64/mm/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 70b8cd4..9f1e417 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -427,8 +427,8 @@ int __meminit vmemmap_populate(struct page *start_page,
 				return -ENOMEM;
 
 			set_pmd(pmd, __pmd(__pa(p) | prot_sect_kernel));
-		} else
-			vmemmap_verify((pte_t *)pmd, node, addr, next);
+		}
+		vmemmap_verify((pte_t *)pmd, node, addr, next);
 	} while (addr = next, addr != end);
 
 	return 0;
-- 
1.8.0.1

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