patch-2.4.23 linux-2.4.23/include/asm-ia64/pgtable.h

• Lines: 45
• Date: 2003-11-28 10:26:21.000000000 -0800
• Orig file: linux-2.4.22/include/asm-ia64/pgtable.h
• Orig date: 2003-06-13 07:51:38.000000000 -0700

diff -urN linux-2.4.22/include/asm-ia64/pgtable.h linux-2.4.23/include/asm-ia64/pgtable.h
@@ -163,7 +163,6 @@
 	return (addr & (local_cpu_data->unimpl_pa_mask)) == 0;
 }
 
-#ifndef CONFIG_DISCONTIGMEM
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -179,7 +178,6 @@
  */
 #define kern_addr_valid(addr)	(1)
 
-#endif
 
 /*
  * Now come the defines and routines to manage and access the three-level
@@ -193,7 +191,6 @@
 #define set_pte(ptep, pteval)	(*(ptep) = (pteval))
 
 #define RGN_SIZE	(1UL << 61)
-#define RGN_MAP_LIMIT	((1UL << (4*PAGE_SHIFT - 12)) - PAGE_SIZE)	/* per region addr limit */
 #define RGN_KERNEL	7
 
 #define VMALLOC_START		(0xa000000000000000 + 3*PAGE_SIZE)
@@ -227,10 +224,8 @@
 #define pte_none(pte) 			(!pte_val(pte))
 #define pte_present(pte)		(pte_val(pte) & (_PAGE_P | _PAGE_PROTNONE))
 #define pte_clear(pte)			(pte_val(*(pte)) = 0UL)
-#ifndef CONFIG_DISCONTIGMEM
 /* pte_page() returns the "struct page *" corresponding to the PTE: */
 #define pte_page(pte)			(mem_map + (unsigned long) ((pte_val(pte) & _PFN_MASK) >> PAGE_SHIFT))
-#endif
 
 #define pmd_none(pmd)			(!pmd_val(pmd))
 #define pmd_bad(pmd)			(!ia64_phys_addr_valid(pmd_val(pmd)))
@@ -430,7 +425,8 @@
  * for zero-mapped memory areas etc..
  */
 extern unsigned long empty_zero_page[PAGE_SIZE/sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+extern struct page *zero_page_memmap_ptr;
+#define ZERO_PAGE(vaddr) (zero_page_memmap_ptr)
 
 /* We provide our own get_unmapped_area to cope with VA holes for userland */
 #define HAVE_ARCH_UNMAPPED_AREA