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From: Dave Jiang <dave.jiang@intel.com>
To: akpm@linux-foundation.org
Cc: dave.hansen@linux.intel.com, alexander.kapshuk@gmail.com,
	mawilcox@microsoft.com, boris.ostrovsky@oracle.com,
	linux-nvdimm@lists.01.org, linux-mm@kvack.org, vbabka@suse.cz,
	jack@suse.com, dan.j.williams@intel.com, labbott@redhat.com,
	ross.zwisler@linux.intel.com, kirill.shutemov@linux.intel.com
Subject: [PATCH] mm, x86: fix HIGHMEM64 && PARAVIRT build config for native_pud_clear()
Date: Mon, 27 Feb 2017 14:44:40 -0700	[thread overview]
Message-ID: <148823188084.56076.17451228917824355200.stgit@djiang5-desk3.ch.intel.com> (raw)

Looks like I also missed the build config that includes
CONFIG_HIGHMEM64G && CONFIG_PARAVIRT to export the native_pud_clear()
dummy function.

Fix: commit e5d56efc ("mm,x86: fix SMP x86 32bit build for native_pud_clear()")

Reported-by: Laura Abbott <labbott@redhat.com>
Reported-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
 arch/x86/include/asm/pgtable-3level.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 8f50fb3..72277b1 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -121,7 +121,8 @@ static inline void native_pmd_clear(pmd_t *pmd)
 	*(tmp + 1) = 0;
 }
 
-#ifndef CONFIG_SMP
+#if !defined(CONFIG_SMP) || (defined(CONFIG_HIGHMEM64G) && \
+		defined(CONFIG_PARAVIRT))
 static inline void native_pud_clear(pud_t *pudp)
 {
 }

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                 reply	other threads:[~2017-02-27 21:44 UTC|newest]

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