[LV-k25-commit] kernel-2.5/include/asm-vax/mm pagelet_pgprot.h,1.3,1.4 pagelet_pte.h,1.6,1.7

[Kenn H. <ke...@us...>]

Update of /cvsroot/linux-vax/kernel-2.5/include/asm-vax/mm
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv29191/include/asm-vax/mm

Modified Files:
	pagelet_pgprot.h pagelet_pte.h 
Log Message:
Implement pte_read()


Index: pagelet_pgprot.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.5/include/asm-vax/mm/pagelet_pgprot.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- pagelet_pgprot.h	20 May 2002 00:33:39 -0000	1.3
+++ pagelet_pgprot.h	28 Mar 2005 16:36:59 -0000	1.4
@@ -58,7 +58,7 @@
 
 #define _PAGE_CHG_MASK	(_PFN_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
 
-/*#define PAGE_PROT_MASK (0x1e000000)*/
+#define PAGE_PROT_MASK	0x78000000
 
 #define PAGE_NONE	__pgprot(_PAGE_VALID | _PAGE_ACCESSED)
 #define PAGE_SHARED	__pgprot(_PAGE_VALID | _PAGE_ACCESSED | _PAGE_UW )

Index: pagelet_pte.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.5/include/asm-vax/mm/pagelet_pte.h,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -d -r1.6 -r1.7
--- pagelet_pte.h	26 Aug 2003 23:20:39 -0000	1.6
+++ pagelet_pte.h	28 Mar 2005 16:37:00 -0000	1.7
@@ -1,5 +1,6 @@
 #ifndef _VAX_MM_PAGELET_PTE_H
 #define _VAX_MM_PAGELET_PTE_H
+
 /* 
  * pagelet_pte.h 
  *  
@@ -233,6 +234,12 @@
    return pte; 
 }
 
+static inline int pte_read(pte_t pte)
+{
+	/* If the page protection is non-zero, page is always kernel readable */
+	return (pte_val(pte) & PAGE_PROT_MASK);
+}
+
 static inline int pte_write(pte_t pte)          
 { 
    return !(pte_val(pte) & _PAGE_RO);