linux-kernel - [PATCH 5/25] [PATCH] native versions for system.h functions

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Date:	Wed,  8 Aug 2007 01:18:52 -0300
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, rusty@...tcorp.com.au, ak@...e.de,
	mingo@...e.hu, chrisw@...s-sol.org, jeremy@...p.org,
	avi@...ranet.com, anthony@...emonkey.ws,
	virtualization@...ts.linux-foundation.org, lguest@...abs.org,
	Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 5/25] [PATCH] native versions for system.h functions

This patch adds the native hook for the functions in system.h
They are the read/write_crX, clts and wbinvd. The later, also
gets its call sites patched.

Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
 arch/x86_64/kernel/tce.c  |    2 +-
 arch/x86_64/mm/pageattr.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86_64/kernel/tce.c b/arch/x86_64/kernel/tce.c
index e3f2569..587f0c2 100644
--- a/arch/x86_64/kernel/tce.c
+++ b/arch/x86_64/kernel/tce.c
@@ -42,7 +42,7 @@ static inline void flush_tce(void* tceaddr)
 	if (cpu_has_clflush)
 		asm volatile("clflush (%0)" :: "r" (tceaddr));
 	else
-		asm volatile("wbinvd":::"memory");
+		wbinvd();
 }
 
 void tce_build(struct iommu_table *tbl, unsigned long index,
diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c
index 7e161c6..b497afd 100644
--- a/arch/x86_64/mm/pageattr.c
+++ b/arch/x86_64/mm/pageattr.c
@@ -76,7 +76,7 @@ static void flush_kernel_map(void *arg)
 	/* When clflush is available always use it because it is
 	   much cheaper than WBINVD. */
 	if (!cpu_has_clflush)
-		asm volatile("wbinvd" ::: "memory");
+		wbinvd();
 	else list_for_each_entry(pg, l, lru) {
 		void *adr = page_address(pg);
 		cache_flush_page(adr);
-- 
1.4.4.2

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