patch-1.3.54 linux/include/asm-i386/pgtable.h

• Lines: 37
• Date: Tue Jan 2 16:47:00 1996
• Orig file: v1.3.53/linux/include/asm-i386/pgtable.h
• Orig date: Tue Jan 2 16:46:29 1996

diff -u --recursive --new-file v1.3.53/linux/include/asm-i386/pgtable.h linux/include/asm-i386/pgtable.h
@@ -153,14 +153,13 @@
 #define _PAGE_ACCESSED	0x020
 #define _PAGE_DIRTY	0x040
 #define _PAGE_4M	0x080	/* 4 MB page, Pentium+.. */
-#define _PAGE_COW	0x200	/* implemented in software (one of the AVL bits) */
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
 
 #define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
 #define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_COW)
+#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
 #define PAGE_READONLY	__pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED)
 #define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED)
 
@@ -275,20 +274,17 @@
 extern inline int pte_exec(pte_t pte)		{ return pte_val(pte) & _PAGE_USER; }
 extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
-extern inline int pte_cow(pte_t pte)		{ return pte_val(pte) & _PAGE_COW; }
 
 extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_RW; return pte; }
 extern inline pte_t pte_rdprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_USER; return pte; }
 extern inline pte_t pte_exprotect(pte_t pte)	{ pte_val(pte) &= ~_PAGE_USER; return pte; }
 extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
 extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_uncow(pte_t pte)	{ pte_val(pte) &= ~_PAGE_COW; return pte; }
 extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) |= _PAGE_RW; return pte; }
 extern inline pte_t pte_mkread(pte_t pte)	{ pte_val(pte) |= _PAGE_USER; return pte; }
 extern inline pte_t pte_mkexec(pte_t pte)	{ pte_val(pte) |= _PAGE_USER; return pte; }
 extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
 extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
-extern inline pte_t pte_mkcow(pte_t pte)	{ pte_val(pte) |= _PAGE_COW; return pte; }
 
 /*
  * Conversion functions: convert a page and protection to a page entry,