linux-kernel - [PATCH] [12/12] GBPAGES: Switch direct mapping setup over to set

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Message-Id: <20080201095325.6419E1B416F@basil.firstfloor.org>
Date:	Fri,  1 Feb 2008 10:53:25 +0100 (CET)
From:	Andi Kleen <ak@...e.de>
To:	tglx@...utronix.de, mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: [PATCH] [12/12] GBPAGES: Switch direct mapping setup over to set_pte


[Actually not needed for gbpages, but an indepedent, but related cleanup]

Use set_pte() for setting up the 2MB pages in the direct mapping similar 
to what the earlier GBPAGES patches did for the 1GB PUDs.

Signed-off-by: Andi Kleen <ak@...e.de>

---
 arch/x86/mm/init_64.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Index: linux/arch/x86/mm/init_64.c
===================================================================
--- linux.orig/arch/x86/mm/init_64.c
+++ linux/arch/x86/mm/init_64.c
@@ -289,7 +289,6 @@ phys_pmd_init(pmd_t *pmd_page, unsigned 
 	int i = pmd_index(address);
 
 	for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) {
-		unsigned long entry;
 		pmd_t *pmd = pmd_page + pmd_index(address);
 
 		if (address >= end) {
@@ -303,9 +302,8 @@ phys_pmd_init(pmd_t *pmd_page, unsigned 
 		if (pmd_val(*pmd))
 			continue;
 
-		entry = __PAGE_KERNEL_LARGE|_PAGE_GLOBAL|address;
-		entry &= __supported_pte_mask;
-		set_pmd(pmd, __pmd(entry));
+		set_pte((pte_t *)pmd,
+			pfn_pte(address >> PAGE_SHIFT, PAGE_KERNEL_LARGE));
 	}
 }
 
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