[PATCH] anobjrmap 6/6 arches

From: Hugh Dickins (hugh@veritas.com)
Date: Thu Mar 20 2003 - 18:17:14 EST


anonjrmap 6/6 updates to arches other than i386

Some arches refer to page->mapping for their cache flushing,
generally use page_mapping instead: it appears that they're
coping with shared pagecache issues, rather than anon swap.

Change put_dirty_page(current,,) to put_stack_page(mpnt,,).
No special page table initialization needed for rmap.
Delete pte_addr_t from asm/pgtable.h. Delete asm/rmap.h.

There's some peculiar __users code in asm-s390*/pgtable.h,
looks bogus to me (those counts are included in page_count),
I've just deleted but should confirm with Martin. And a
fix in asm-sh/pgalloc.h: use list_empty on i_mmap_shared.

No i386 files in this patch: but note that with pte_addr_t
gone, its PAE struct page is the same size as without PAE.

 arch/arm/mm/fault-armv.c | 4 ++--
 arch/arm/mm/mm-armv.c | 3 +--
 arch/ia64/ia32/binfmt_elf32.c | 3 +--
 arch/ia64/mm/init.c | 2 +-
 arch/parisc/kernel/cache.c | 4 ++--
 arch/ppc/mm/init.c | 12 ------------
 arch/s390x/kernel/exec32.c | 4 +---
 arch/sparc64/kernel/smp.c | 8 ++++----
 arch/sparc64/mm/init.c | 12 ++++++------
 arch/sparc64/mm/ultra.S | 2 +-
 arch/x86_64/ia32/ia32_binfmt.c | 5 +----
 include/asm-alpha/pgtable.h | 2 --
 include/asm-alpha/rmap.h | 7 -------
 include/asm-arm/pgtable.h | 2 --
 include/asm-arm/proc-armv/cache.h | 4 ++--
 include/asm-arm/rmap.h | 6 ------
 include/asm-cris/pgtable.h | 2 --
 include/asm-cris/rmap.h | 7 -------
 include/asm-ia64/pgtable.h | 2 --
 include/asm-ia64/rmap.h | 7 -------
 include/asm-m68k/pgtable.h | 2 --
 include/asm-m68k/rmap.h | 7 -------
 include/asm-m68knommu/pgtable.h | 2 --
 include/asm-m68knommu/rmap.h | 2 --
 include/asm-mips/pgtable.h | 2 --
 include/asm-mips/rmap.h | 7 -------
 include/asm-mips64/pgtable.h | 2 --
 include/asm-mips64/rmap.h | 7 -------
 include/asm-parisc/cacheflush.h | 2 +-
 include/asm-parisc/pgtable.h | 2 --
 include/asm-parisc/rmap.h | 7 -------
 include/asm-ppc/pgtable.h | 2 --
 include/asm-ppc/rmap.h | 9 ---------
 include/asm-ppc64/pgtable.h | 2 --
 include/asm-ppc64/rmap.h | 9 ---------
 include/asm-s390/pgtable.h | 8 ++------
 include/asm-s390/rmap.h | 7 -------
 include/asm-s390x/pgtable.h | 8 ++------
 include/asm-s390x/rmap.h | 7 -------
 include/asm-sh/pgalloc.h | 2 +-
 include/asm-sh/pgtable.h | 2 --
 include/asm-sh/rmap.h | 7 -------
 include/asm-sparc/pgtable.h | 2 --
 include/asm-sparc/rmap.h | 7 -------
 include/asm-sparc64/pgtable.h | 2 --
 include/asm-sparc64/rmap.h | 7 -------
 include/asm-um/pgtable.h | 12 ------------
 include/asm-um/rmap.h | 6 ------
 include/asm-v850/pgtable.h | 2 --
 include/asm-v850/rmap.h | 1 -
 include/asm-x86_64/pgtable.h | 2 --
 include/asm-x86_64/rmap.h | 7 -------
 52 files changed, 28 insertions(+), 223 deletions(-)

--- anobjrmap5/arch/arm/mm/fault-armv.c Mon Nov 18 06:02:39 2002
+++ anobjrmap6/arch/arm/mm/fault-armv.c Thu Mar 20 17:10:45 2003
@@ -188,7 +188,7 @@
 
         cpu_cache_clean_invalidate_range(kaddr, kaddr + PAGE_SIZE, 0);
 
- if (!page->mapping)
+ if (!page_mapping(page))
                 return;
 
         /*
@@ -289,7 +289,7 @@
         if (!pfn_valid(pfn))
                 return;
         page = pfn_to_page(pfn);
- if (page->mapping) {
+ if (page_mapping(page)) {
                 int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags);
                 unsigned long kaddr = (unsigned long)page_address(page);
 
--- anobjrmap5/arch/arm/mm/mm-armv.c Mon Nov 18 06:02:39 2002
+++ anobjrmap6/arch/arm/mm/mm-armv.c Thu Mar 20 17:10:45 2003
@@ -17,7 +17,6 @@
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
 #include <asm/page.h>
-#include <asm/rmap.h>
 #include <asm/io.h>
 #include <asm/setup.h>
 #include <asm/tlbflush.h>
@@ -151,7 +150,7 @@
 
         pte = pmd_page(*pmd);
         pmd_clear(pmd);
- pgtable_remove_rmap(pte);
+ dec_page_state(nr_page_table_pages);
         pte_free(pte);
         pmd_free(pmd);
 free:
--- anobjrmap5/arch/ia64/ia32/binfmt_elf32.c Mon Feb 10 20:12:34 2003
+++ anobjrmap6/arch/ia64/ia32/binfmt_elf32.c Thu Mar 20 17:10:45 2003
@@ -40,7 +40,6 @@
 #define CLOCKS_PER_SEC IA32_CLOCKS_PER_SEC
 
 extern void ia64_elf32_init (struct pt_regs *regs);
-extern void put_dirty_page (struct task_struct * tsk, struct page *page, unsigned long address);
 
 static void elf32_set_personality (void);
 
@@ -200,7 +199,7 @@
                 struct page *page = bprm->page[i];
                 if (page) {
                         bprm->page[i] = NULL;
- put_dirty_page(current, page, stack_base);
+ put_stack_page(mpnt, page, stack_base);
                 }
                 stack_base += PAGE_SIZE;
         }
--- anobjrmap5/arch/ia64/mm/init.c Mon Feb 10 20:12:35 2003
+++ anobjrmap6/arch/ia64/mm/init.c Thu Mar 20 17:10:45 2003
@@ -223,7 +223,7 @@
 }
 
 /*
- * This is like put_dirty_page() but installs a clean page with PAGE_GATE protection
+ * This is like put_stack_page() but installs a clean page with PAGE_GATE protection
  * (execute-only, typically).
  */
 struct page *
--- anobjrmap5/arch/parisc/kernel/cache.c Wed Mar 19 11:05:09 2003
+++ anobjrmap6/arch/parisc/kernel/cache.c Thu Mar 20 17:10:45 2003
@@ -64,7 +64,7 @@
 {
         struct page *page = pte_page(pte);
 
- if (VALID_PAGE(page) && page->mapping &&
+ if (VALID_PAGE(page) && page_mapping(page) &&
             test_bit(PG_dcache_dirty, &page->flags)) {
 
                 flush_kernel_dcache_page(page_address(page));
@@ -230,7 +230,7 @@
 
         flush_kernel_dcache_page(page_address(page));
 
- if (!page->mapping)
+ if (!page_mapping(page))
                 return;
 
         list_for_each(l, &page->mapping->i_mmap_shared) {
--- anobjrmap5/arch/ppc/mm/init.c Tue Mar 18 07:38:32 2003
+++ anobjrmap6/arch/ppc/mm/init.c Thu Mar 20 17:10:45 2003
@@ -472,18 +472,6 @@
                 printk(KERN_INFO "AGP special page: 0x%08lx\n", agp_special_page);
 #endif /* defined(CONFIG_ALL_PPC) */
 
- /* Make sure all our pagetable pages have page->mapping
- and page->index set correctly. */
- for (addr = KERNELBASE; addr != 0; addr += PGDIR_SIZE) {
- struct page *pg;
- pmd_t *pmd = pmd_offset(pgd_offset_k(addr), addr);
- if (pmd_present(*pmd)) {
- pg = pmd_page(*pmd);
- pg->mapping = (void *) &init_mm;
- pg->index = addr;
- }
- }
-
         mem_init_done = 1;
 }
 
--- anobjrmap5/arch/s390x/kernel/exec32.c Wed Mar 5 07:26:17 2003
+++ anobjrmap6/arch/s390x/kernel/exec32.c Thu Mar 20 17:10:45 2003
@@ -33,8 +33,6 @@
 #endif
 
 
-extern void put_dirty_page(struct task_struct * tsk, struct page *page, unsigned long address);
-
 #undef STACK_TOP
 #define STACK_TOP TASK31_SIZE
 
@@ -82,7 +80,7 @@
                 struct page *page = bprm->page[i];
                 if (page) {
                         bprm->page[i] = NULL;
- put_dirty_page(current,page,stack_base);
+ put_stack_page(mpnt,page,stack_base);
                 }
                 stack_base += PAGE_SIZE;
         }
--- anobjrmap5/arch/sparc64/kernel/smp.c Tue Mar 18 07:38:33 2003
+++ anobjrmap6/arch/sparc64/kernel/smp.c Thu Mar 20 17:10:45 2003
@@ -750,9 +750,9 @@
 #if (L1DCACHE_SIZE > PAGE_SIZE)
         __flush_dcache_page(page->virtual,
                             ((tlb_type == spitfire) &&
- page->mapping != NULL));
+ page_mapping(page) != NULL));
 #else
- if (page->mapping != NULL &&
+ if (page_mapping(page) != NULL &&
             tlb_type == spitfire)
                 __flush_icache_page(__pa(page->virtual));
 #endif
@@ -773,7 +773,7 @@
                 if (tlb_type == spitfire) {
                         data0 =
                                 ((u64)&xcall_flush_dcache_page_spitfire);
- if (page->mapping != NULL)
+ if (page_mapping(page) != NULL)
                                 data0 |= ((u64)1 << 32);
                         spitfire_xcall_deliver(data0,
                                                __pa(page->virtual),
@@ -804,7 +804,7 @@
                 goto flush_self;
         if (tlb_type == spitfire) {
                 data0 = ((u64)&xcall_flush_dcache_page_spitfire);
- if (page->mapping != NULL)
+ if (page_mapping(page) != NULL)
                         data0 |= ((u64)1 << 32);
                 spitfire_xcall_deliver(data0,
                                        __pa(page->virtual),
--- anobjrmap5/arch/sparc64/mm/init.c Mon Jan 13 19:31:43 2003
+++ anobjrmap6/arch/sparc64/mm/init.c Thu Mar 20 17:10:45 2003
@@ -129,9 +129,9 @@
 #if (L1DCACHE_SIZE > PAGE_SIZE)
         __flush_dcache_page(page->virtual,
                             ((tlb_type == spitfire) &&
- page->mapping != NULL));
+ page_mapping(page) != NULL));
 #else
- if (page->mapping != NULL &&
+ if (page_mapping(page) != NULL &&
             tlb_type == spitfire)
                 __flush_icache_page(__pa(page->virtual));
 #endif
@@ -193,7 +193,7 @@
 
         pfn = pte_pfn(pte);
         if (pfn_valid(pfn) &&
- (page = pfn_to_page(pfn), page->mapping) &&
+ (page = pfn_to_page(pfn), page_mapping(page)) &&
             ((pg_flags = page->flags) & (1UL << PG_dcache_dirty))) {
                 int cpu = ((pg_flags >> 24) & (NR_CPUS - 1UL));
 
@@ -217,7 +217,7 @@
         int dirty = test_bit(PG_dcache_dirty, &page->flags);
         int dirty_cpu = dcache_dirty_cpu(page);
 
- if (page->mapping &&
+ if (page_mapping(page) &&
             list_empty(&page->mapping->i_mmap) &&
             list_empty(&page->mapping->i_mmap_shared)) {
                 if (dirty) {
@@ -227,7 +227,7 @@
                 }
                 set_dcache_dirty(page);
         } else {
- /* We could delay the flush for the !page->mapping
+ /* We could delay the flush for the !page_mapping
                  * case too. But that case is for exec env/arg
                  * pages and those are %99 certainly going to get
                  * faulted into the tlb (and thus flushed) anyways.
@@ -269,7 +269,7 @@
                         if (!pfn_valid(pfn))
                                 continue;
                         page = pfn_to_page(pfn);
- if (PageReserved(page) || !page->mapping)
+ if (PageReserved(page) || !page_mapping(page))
                                 continue;
                         pgaddr = (unsigned long) page_address(page);
                         uaddr = address + offset;
--- anobjrmap5/arch/sparc64/mm/ultra.S Mon Feb 24 20:03:29 2003
+++ anobjrmap6/arch/sparc64/mm/ultra.S Thu Mar 20 17:10:45 2003
@@ -615,7 +615,7 @@
         .globl xcall_flush_dcache_page_spitfire
 xcall_flush_dcache_page_spitfire: /* %g1 == physical page address
                                      %g7 == kernel page virtual address
- %g5 == (page->mapping != NULL) */
+ %g5 == (page_mapping != NULL) */
 #if (L1DCACHE_SIZE > PAGE_SIZE)
         srlx %g1, (13 - 2), %g1 ! Form tag comparitor
         sethi %hi(L1DCACHE_SIZE), %g3 ! D$ size == 16K
--- anobjrmap5/arch/x86_64/ia32/ia32_binfmt.c Wed Mar 19 11:05:09 2003
+++ anobjrmap6/arch/x86_64/ia32/ia32_binfmt.c Thu Mar 20 17:10:45 2003
@@ -272,9 +272,6 @@
         set_thread_flag(TIF_IA32);
 }
 
-extern void put_dirty_page(struct task_struct * tsk, struct page *page, unsigned long address);
-
-
 int setup_arg_pages(struct linux_binprm *bprm)
 {
         unsigned long stack_base;
@@ -319,7 +316,7 @@
                 struct page *page = bprm->page[i];
                 if (page) {
                         bprm->page[i] = NULL;
- put_dirty_page(current,page,stack_base);
+ put_stack_page(mpnt,page,stack_base);
                 }
                 stack_base += PAGE_SIZE;
         }
--- anobjrmap5/include/asm-alpha/pgtable.h Tue Mar 18 07:38:41 2003
+++ anobjrmap6/include/asm-alpha/pgtable.h Thu Mar 20 17:10:45 2003
@@ -343,6 +343,4 @@
 /* We have our own get_unmapped_area to cope with ADDR_LIMIT_32BIT. */
 #define HAVE_ARCH_UNMAPPED_AREA
 
-typedef pte_t *pte_addr_t;
-
 #endif /* _ALPHA_PGTABLE_H */
--- anobjrmap5/include/asm-alpha/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-alpha/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _ALPHA_RMAP_H
-#define _ALPHA_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-arm/pgtable.h Tue Mar 18 07:38:42 2003
+++ anobjrmap6/include/asm-arm/pgtable.h Thu Mar 20 17:10:45 2003
@@ -162,8 +162,6 @@
 #define io_remap_page_range(vma,from,phys,size,prot) \
                 remap_page_range(vma,from,phys,size,prot)
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASMARM_PGTABLE_H */
--- anobjrmap5/include/asm-arm/proc-armv/cache.h Mon Nov 18 06:02:49 2002
+++ anobjrmap6/include/asm-arm/proc-armv/cache.h Thu Mar 20 17:10:45 2003
@@ -81,7 +81,7 @@
  * flush_dcache_page is used when the kernel has written to the page
  * cache page at virtual address page->virtual.
  *
- * If this page isn't mapped (ie, page->mapping = NULL), or it has
+ * If this page isn't mapped (ie, page_mapping == NULL), or it has
  * userspace mappings (page->mapping->i_mmap or page->mapping->i_mmap_shared)
  * then we _must_ always clean + invalidate the dcache entries associated
  * with the kernel mapping.
@@ -97,7 +97,7 @@
 
 static inline void flush_dcache_page(struct page *page)
 {
- if (page->mapping && !mapping_mapped(page->mapping))
+ if (page_mapping(page) && !mapping_mapped(page->mapping))
                 set_bit(PG_dcache_dirty, &page->flags);
         else
                 __flush_dcache_page(page);
--- anobjrmap5/include/asm-arm/rmap.h Thu Aug 1 23:58:27 2002
+++ anobjrmap6/include/asm-arm/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,6 +0,0 @@
-#ifndef _ARM_RMAP_H
-#define _ARM_RMAP_H
-
-#include <asm-generic/rmap.h>
-
-#endif /* _ARM_RMAP_H */
--- anobjrmap5/include/asm-cris/pgtable.h Mon Sep 16 05:51:50 2002
+++ anobjrmap6/include/asm-cris/pgtable.h Thu Mar 20 17:10:45 2003
@@ -515,6 +515,4 @@
  */
 #define pgtable_cache_init() do { } while (0)
 
-typedef pte_t *pte_addr_t;
-
 #endif /* _CRIS_PGTABLE_H */
--- anobjrmap5/include/asm-cris/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-cris/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _CRIS_RMAP_H
-#define _CRIS_RMAP_H
-
-/* nothing to see, move along :) */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-ia64/pgtable.h Tue Mar 18 07:38:42 2003
+++ anobjrmap6/include/asm-ia64/pgtable.h Thu Mar 20 17:10:45 2003
@@ -420,8 +420,6 @@
 /* We provide our own get_unmapped_area to cope with VA holes for userland */
 #define HAVE_ARCH_UNMAPPED_AREA
 
-typedef pte_t *pte_addr_t;
-
 # endif /* !__ASSEMBLY__ */
 
 /*
--- anobjrmap5/include/asm-ia64/rmap.h Wed Aug 28 06:38:20 2002
+++ anobjrmap6/include/asm-ia64/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _ASM_IA64_RMAP_H
-#define _ASM_IA64_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif /* _ASM_IA64_RMAP_H */
--- anobjrmap5/include/asm-m68k/pgtable.h Mon Sep 16 05:51:50 2002
+++ anobjrmap6/include/asm-m68k/pgtable.h Thu Mar 20 17:10:45 2003
@@ -172,8 +172,6 @@
 #ifndef __ASSEMBLY__
 #include <asm-generic/pgtable.h>
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 /*
--- anobjrmap5/include/asm-m68k/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-m68k/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _M68K_RMAP_H
-#define _M68K_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-m68knommu/pgtable.h Tue Nov 5 00:03:09 2002
+++ anobjrmap6/include/asm-m68knommu/pgtable.h Thu Mar 20 17:10:45 2003
@@ -11,8 +11,6 @@
 #include <asm/page.h>
 #include <asm/io.h>
 
-typedef pte_t *pte_addr_t;
-
 /*
  * Trivial page table functions.
  */
--- anobjrmap5/include/asm-m68knommu/rmap.h Tue Nov 5 00:03:09 2002
+++ anobjrmap6/include/asm-m68knommu/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,2 +0,0 @@
-/* Do not need anything here */
-
--- anobjrmap5/include/asm-mips/pgtable.h Wed Mar 5 07:26:32 2003
+++ anobjrmap6/include/asm-mips/pgtable.h Thu Mar 20 17:10:45 2003
@@ -771,8 +771,6 @@
 
 #include <asm-generic/pgtable.h>
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !defined (_LANGUAGE_ASSEMBLY) */
 
 #define io_remap_page_range remap_page_range
--- anobjrmap5/include/asm-mips/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-mips/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _MIPS_RMAP_H
-#define _MIPS_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-mips64/pgtable.h Wed Mar 5 07:26:32 2003
+++ anobjrmap6/include/asm-mips64/pgtable.h Thu Mar 20 17:10:45 2003
@@ -811,8 +811,6 @@
 
 #include <asm-generic/pgtable.h>
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !defined (_LANGUAGE_ASSEMBLY) */
 
 /*
--- anobjrmap5/include/asm-mips64/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-mips64/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _MIPS64_RMAP_H
-#define _MIPS64_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-parisc/cacheflush.h Wed Mar 19 11:05:12 2003
+++ anobjrmap6/include/asm-parisc/cacheflush.h Thu Mar 20 17:10:45 2003
@@ -71,7 +71,7 @@
 
 static inline void flush_dcache_page(struct page *page)
 {
- if (page->mapping && list_empty(&page->mapping->i_mmap) &&
+ if (page_mapping(page) && list_empty(&page->mapping->i_mmap) &&
                         list_empty(&page->mapping->i_mmap_shared)) {
                 set_bit(PG_dcache_dirty, &page->flags);
         } else {
--- anobjrmap5/include/asm-parisc/pgtable.h Tue Mar 18 07:38:43 2003
+++ anobjrmap6/include/asm-parisc/pgtable.h Thu Mar 20 17:10:45 2003
@@ -434,8 +434,6 @@
 
 #define pte_same(A,B) (pte_val(A) == pte_val(B))
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #define io_remap_page_range remap_page_range
--- anobjrmap5/include/asm-parisc/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-parisc/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _PARISC_RMAP_H
-#define _PARISC_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-ppc/pgtable.h Tue Mar 18 07:38:43 2003
+++ anobjrmap6/include/asm-ppc/pgtable.h Thu Mar 20 17:10:45 2003
@@ -570,8 +570,6 @@
  */
 #define pgtable_cache_init() do { } while (0)
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 #endif /* _PPC_PGTABLE_H */
 #endif /* __KERNEL__ */
--- anobjrmap5/include/asm-ppc/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-ppc/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,9 +0,0 @@
-#ifndef _PPC_RMAP_H
-#define _PPC_RMAP_H
-
-/* PPC calls pte_alloc() before mem_map[] is setup ... */
-#define BROKEN_PPC_PTE_ALLOC_ONE
-
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-ppc64/pgtable.h Wed Mar 19 11:05:12 2003
+++ anobjrmap6/include/asm-ppc64/pgtable.h Thu Mar 20 17:10:45 2003
@@ -375,7 +375,5 @@
 extern void hpte_init_pSeries(void);
 extern void hpte_init_iSeries(void);
 
-typedef pte_t *pte_addr_t;
-
 #endif /* __ASSEMBLY__ */
 #endif /* _PPC64_PGTABLE_H */
--- anobjrmap5/include/asm-ppc64/rmap.h Thu Jul 25 13:04:58 2002
+++ anobjrmap6/include/asm-ppc64/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,9 +0,0 @@
-#ifndef _PPC64_RMAP_H
-#define _PPC64_RMAP_H
-
-/* PPC64 calls pte_alloc() before mem_map[] is setup ... */
-#define BROKEN_PPC_PTE_ALLOC_ONE
-
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-s390/pgtable.h Tue Mar 18 07:38:43 2003
+++ anobjrmap6/include/asm-s390/pgtable.h Thu Mar 20 17:10:45 2003
@@ -422,8 +422,7 @@
         pte_t __pte = mk_pte_phys(__physpage, __pgprot); \
                                                                           \
         if (!(pgprot_val(__pgprot) & _PAGE_ISCLEAN)) { \
- int __users = !!PagePrivate(__page) + !!__page->mapping; \
- if (__users + page_count(__page) == 1) \
+ if (page_count(__page) == 1) \
                         pte_val(__pte) |= _PAGE_MKCLEAN; \
         } \
         __pte; \
@@ -437,8 +436,7 @@
         pte_t __pte = mk_pte_phys(__physpage, __pgprot); \
                                                                           \
         if (!(pgprot_val(__pgprot) & _PAGE_ISCLEAN)) { \
- int __users = !!PagePrivate(__page) + !!__page->mapping; \
- if (__users + page_count(__page) == 1) \
+ if (page_count(__page) == 1) \
                         pte_val(__pte) |= _PAGE_MKCLEAN; \
         } \
         __pte; \
@@ -507,8 +505,6 @@
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #define kern_addr_valid(addr) (1)
--- anobjrmap5/include/asm-s390/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-s390/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _S390_RMAP_H
-#define _S390_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-s390x/pgtable.h Tue Mar 18 07:38:43 2003
+++ anobjrmap6/include/asm-s390x/pgtable.h Thu Mar 20 17:10:45 2003
@@ -441,8 +441,7 @@
         pte_t __pte = mk_pte_phys(__physpage, __pgprot); \
                                                                            \
         if (!(pgprot_val(__pgprot) & _PAGE_ISCLEAN)) { \
- int __users = !!PagePrivate(__page) + !!__page->mapping; \
- if (__users + page_count(__page) == 1) \
+ if (page_count(__page) == 1) \
                         pte_val(__pte) |= _PAGE_MKCLEAN; \
         } \
         __pte; \
@@ -456,8 +455,7 @@
         pte_t __pte = mk_pte_phys(__physpage, __pgprot); \
                                                                           \
         if (!(pgprot_val(__pgprot) & _PAGE_ISCLEAN)) { \
- int __users = !!PagePrivate(__page) + !!__page->mapping; \
- if (__users + page_count(__page) == 1) \
+ if (page_count(__page) == 1) \
                         pte_val(__pte) |= _PAGE_MKCLEAN; \
         } \
         __pte; \
@@ -533,8 +531,6 @@
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #define kern_addr_valid(addr) (1)
--- anobjrmap5/include/asm-s390x/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-s390x/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _S390X_RMAP_H
-#define _S390X_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-sh/pgalloc.h Wed May 8 20:42:40 2002
+++ anobjrmap6/include/asm-sh/pgalloc.h Thu Mar 20 17:10:45 2003
@@ -109,7 +109,7 @@
                 unsigned long pfn = pte_pfn(pte);
                 if (pfn_valid(pfn)) {
                         page = pfn_to_page(page);
- if (!page->mapping || !page->mapping->i_mmap_shared)
+ if (!page_mapping(page) || list_empty(&page->mapping->i_mmap_shared))
                                 __clear_bit(PG_mapped, &page->flags);
                 }
         }
--- anobjrmap5/include/asm-sh/pgtable.h Tue Mar 18 07:38:43 2003
+++ anobjrmap6/include/asm-sh/pgtable.h Thu Mar 20 17:10:45 2003
@@ -307,8 +307,6 @@
 
 #define pte_same(A,B) (pte_val(A) == pte_val(B))
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #define kern_addr_valid(addr) (1)
--- anobjrmap5/include/asm-sh/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-sh/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _SH_RMAP_H
-#define _SH_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-sparc/pgtable.h Mon Sep 16 05:51:51 2002
+++ anobjrmap6/include/asm-sparc/pgtable.h Thu Mar 20 17:10:46 2003
@@ -442,8 +442,6 @@
 
 #include <asm-generic/pgtable.h>
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !(__ASSEMBLY__) */
 
 /* We provide our own get_unmapped_area to cope with VA holes for userland */
--- anobjrmap5/include/asm-sparc/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-sparc/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _SPARC_RMAP_H
-#define _SPARC_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-sparc64/pgtable.h Tue Mar 18 07:38:44 2003
+++ anobjrmap6/include/asm-sparc64/pgtable.h Thu Mar 20 17:10:46 2003
@@ -369,8 +369,6 @@
 
 extern void check_pgt_cache(void);
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(_SPARC64_PGTABLE_H) */
--- anobjrmap5/include/asm-sparc64/rmap.h Sat Jul 20 20:56:06 2002
+++ anobjrmap6/include/asm-sparc64/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _SPARC64_RMAP_H
-#define _SPARC64_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif
--- anobjrmap5/include/asm-um/pgtable.h Tue Mar 18 07:38:44 2003
+++ anobjrmap6/include/asm-um/pgtable.h Thu Mar 20 17:10:46 2003
@@ -385,18 +385,6 @@
 #define pte_unmap(pte) kunmap_atomic((pte), KM_PTE0)
 #define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
 
-#if defined(CONFIG_HIGHPTE) && defined(CONFIG_HIGHMEM4G)
-typedef u32 pte_addr_t;
-#endif
-
-#if defined(CONFIG_HIGHPTE) && defined(CONFIG_HIGHMEM64G)
-typedef u64 pte_addr_t;
-#endif
-
-#if !defined(CONFIG_HIGHPTE)
-typedef pte_t *pte_addr_t;
-#endif
-
 #define update_mmu_cache(vma,address,pte) do ; while (0)
 
 /* Encode and de-code a swap entry */
--- anobjrmap5/include/asm-um/rmap.h Mon Sep 16 05:51:51 2002
+++ anobjrmap6/include/asm-um/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,6 +0,0 @@
-#ifndef __UM_RMAP_H
-#define __UM_RMAP_H
-
-#include "asm/arch/rmap.h"
-
-#endif
--- anobjrmap5/include/asm-v850/pgtable.h Tue Nov 5 00:03:09 2002
+++ anobjrmap6/include/asm-v850/pgtable.h Thu Mar 20 17:10:46 2003
@@ -5,8 +5,6 @@
 #include <asm/page.h>
 
 
-typedef pte_t *pte_addr_t;
-
 #define pgd_present(pgd) (1) /* pages are always present on NO_MM */
 #define pgd_none(pgd) (0)
 #define pgd_bad(pgd) (0)
--- anobjrmap5/include/asm-v850/rmap.h Tue Nov 5 00:03:09 2002
+++ anobjrmap6/include/asm-v850/rmap.h Thu Jan 1 01:00:00 1970
@@ -1 +0,0 @@
-/* Do not need anything here */
--- anobjrmap5/include/asm-x86_64/pgtable.h Wed Mar 19 11:05:15 2003
+++ anobjrmap6/include/asm-x86_64/pgtable.h Thu Mar 20 17:10:46 2003
@@ -380,8 +380,6 @@
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x) ((pte_t) { (x).val })
 
-typedef pte_t *pte_addr_t;
-
 #endif /* !__ASSEMBLY__ */
 
 #ifndef CONFIG_DISCONTIGMEM
--- anobjrmap5/include/asm-x86_64/rmap.h Wed Oct 16 06:31:03 2002
+++ anobjrmap6/include/asm-x86_64/rmap.h Thu Jan 1 01:00:00 1970
@@ -1,7 +0,0 @@
-#ifndef _X8664_RMAP_H
-#define _X8664_RMAP_H
-
-/* nothing to see, move along */
-#include <asm-generic/rmap.h>
-
-#endif

-
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