Merge /spare/repo/linux-2.6/

8 files changed, 27 insertions, 99 deletions

diff --git a/arch/um/kernel/asm-offsets.c b/arch/um/kernel/asm-offsets.c
new file mode 100644
index 000000000000..c13a64a288f6
--- /dev/null
+++ b/arch/um/kernel/asm-offsets.c
@@ -0,0 +1 @@
+/* Dummy file to make kbuild happy - unused! */
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 3942a5f245de..2517ecb8bf27 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -146,37 +146,8 @@ SECTIONS
   }
   _end = .;
   PROVIDE (end = .);
-   /* Stabs debugging sections.  */
-  .stab          0 : { *(.stab) }
-  .stabstr       0 : { *(.stabstr) }
-  .stab.excl     0 : { *(.stab.excl) }
-  .stab.exclstr  0 : { *(.stab.exclstr) }
-  .stab.index    0 : { *(.stab.index) }
-  .stab.indexstr 0 : { *(.stab.indexstr) }
-  .comment       0 : { *(.comment) }
-  /* DWARF debug sections.
-     Symbols in the DWARF debugging sections are relative to the beginning
-     of the section so we begin them at 0.  */
-  /* DWARF 1 */
-  .debug          0 : { *(.debug) }
-  .line           0 : { *(.line) }
-  /* GNU DWARF 1 extensions */
-  .debug_srcinfo  0 : { *(.debug_srcinfo) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
-  /* DWARF 1.1 and DWARF 2 */
-  .debug_aranges  0 : { *(.debug_aranges) }
-  .debug_pubnames 0 : { *(.debug_pubnames) }
-  /* DWARF 2 */
-  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
-  .debug_abbrev   0 : { *(.debug_abbrev) }
-  .debug_line     0 : { *(.debug_line) }
-  .debug_frame    0 : { *(.debug_frame) }
-  .debug_str      0 : { *(.debug_str) }
-  .debug_loc      0 : { *(.debug_loc) }
-  .debug_macinfo  0 : { *(.debug_macinfo) }
-  /* SGI/MIPS DWARF 2 extensions */
-  .debug_weaknames 0 : { *(.debug_weaknames) }
-  .debug_funcnames 0 : { *(.debug_funcnames) }
-  .debug_typenames 0 : { *(.debug_typenames) }
-  .debug_varnames  0 : { *(.debug_varnames) }
+
+  STABS_DEBUG
+
+  DWARF_DEBUG
 }
diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 32d3076dd220..a97a72e516aa 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -34,14 +34,9 @@ EXPORT_SYMBOL(host_task_size);
 EXPORT_SYMBOL(arch_validate);
 EXPORT_SYMBOL(get_kmem_end);
 
-EXPORT_SYMBOL(page_to_phys);
-EXPORT_SYMBOL(phys_to_page);
 EXPORT_SYMBOL(high_physmem);
 EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(um_virt_to_phys);
-EXPORT_SYMBOL(__virt_to_page);
-EXPORT_SYMBOL(to_phys);
-EXPORT_SYMBOL(to_virt);
 EXPORT_SYMBOL(mode_tt);
 EXPORT_SYMBOL(handle_page_fault);
 EXPORT_SYMBOL(find_iomem);
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index a24e3b7f4bf0..ea670fcc8af5 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -248,16 +248,6 @@ unsigned long high_physmem;
 
 extern unsigned long physmem_size;
 
-void *to_virt(unsigned long phys)
-{
-        return((void *) uml_physmem + phys);
-}
-
-unsigned long to_phys(void *virt)
-{
-        return(((unsigned long) virt) - uml_physmem);
-}
-
 int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
 {
         struct page *p, *map;
@@ -298,31 +288,6 @@ int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
         return(0);
 }
 
-struct page *phys_to_page(const unsigned long phys)
-{
-        return(&mem_map[phys >> PAGE_SHIFT]);
-}
-
-struct page *__virt_to_page(const unsigned long virt)
-{
-        return(&mem_map[__pa(virt) >> PAGE_SHIFT]);
-}
-
-phys_t page_to_phys(struct page *page)
-{
-        return((page - mem_map) << PAGE_SHIFT);
-}
-
-pte_t mk_pte(struct page *page, pgprot_t pgprot)
-{
-        pte_t pte;
-
-        pte_set_val(pte, page_to_phys(page), pgprot);
-        if(pte_present(pte))
-                pte_mknewprot(pte_mknewpage(pte));
-        return(pte);
-}
-
 /* Changed during early boot */
 static unsigned long kmem_top = 0;
 
diff --git a/arch/um/kernel/skas/include/uaccess-skas.h b/arch/um/kernel/skas/include/uaccess-skas.h
index cd6c280482cb..6ee3f3902e68 100644
--- a/arch/um/kernel/skas/include/uaccess-skas.h
+++ b/arch/um/kernel/skas/include/uaccess-skas.h
@@ -18,18 +18,18 @@
           ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
           ((unsigned long) (addr) + (size) >= (unsigned long)(addr))))
 
-static inline int verify_area_skas(int type, const void * addr,
+static inline int verify_area_skas(int type, const void __user * addr,
                                    unsigned long size)
 {
         return(access_ok_skas(type, addr, size) ? 0 : -EFAULT);
 }
 
-extern int copy_from_user_skas(void *to, const void *from, int n);
-extern int copy_to_user_skas(void *to, const void *from, int n);
-extern int strncpy_from_user_skas(char *dst, const char *src, int count);
-extern int __clear_user_skas(void *mem, int len);
-extern int clear_user_skas(void *mem, int len);
-extern int strnlen_user_skas(const void *str, int len);
+extern int copy_from_user_skas(void *to, const void __user *from, int n);
+extern int copy_to_user_skas(void __user *to, const void *from, int n);
+extern int strncpy_from_user_skas(char *dst, const char __user *src, int count);
+extern int __clear_user_skas(void __user *mem, int len);
+extern int clear_user_skas(void __user *mem, int len);
+extern int strnlen_user_skas(const void __user *str, int len);
 
 #endif
 
diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
index b5fc89fe9eab..87cc6fd76ced 100644
--- a/arch/um/kernel/trap_kern.c
+++ b/arch/um/kernel/trap_kern.c
@@ -57,7 +57,8 @@ good_area:
         if(is_write && !(vma->vm_flags & VM_WRITE)) 
                 goto out;
 
-        if(!(vma->vm_flags & (VM_READ | VM_EXEC)))
+        /* Don't require VM_READ|VM_EXEC for write faults! */
+        if(!is_write && !(vma->vm_flags & (VM_READ | VM_EXEC)))
                 goto out;
 
         do {
@@ -84,8 +85,7 @@ survive:
                 pte = pte_offset_kernel(pmd, address);
         } while(!pte_present(*pte));
         err = 0;
-        *pte = pte_mkyoung(*pte);
-        if(pte_write(*pte)) *pte = pte_mkdirty(*pte);
+        WARN_ON(!pte_young(*pte) || (is_write && !pte_dirty(*pte)));
         flush_tlb_page(vma, address);
 out:
         up_read(&mm->mmap_sem);
diff --git a/arch/um/kernel/tt/include/uaccess-tt.h b/arch/um/kernel/tt/include/uaccess-tt.h
index 3fbb5fe26f49..aa6db384af80 100644
--- a/arch/um/kernel/tt/include/uaccess-tt.h
+++ b/arch/um/kernel/tt/include/uaccess-tt.h
@@ -33,7 +33,7 @@ extern unsigned long uml_physmem;
          (((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) && \
           (under_task_size(addr, size) || is_stack(addr, size))))
 
-static inline int verify_area_tt(int type, const void * addr,
+static inline int verify_area_tt(int type, const void __user * addr,
                                  unsigned long size)
 {
         return(access_ok_tt(type, addr, size) ? 0 : -EFAULT);
@@ -50,12 +50,12 @@ extern int __do_clear_user(void *mem, size_t len, void **fault_addr,
 extern int __do_strnlen_user(const char *str, unsigned long n,
                              void **fault_addr, void **fault_catcher);
 
-extern int copy_from_user_tt(void *to, const void *from, int n);
-extern int copy_to_user_tt(void *to, const void *from, int n);
-extern int strncpy_from_user_tt(char *dst, const char *src, int count);
-extern int __clear_user_tt(void *mem, int len);
-extern int clear_user_tt(void *mem, int len);
-extern int strnlen_user_tt(const void *str, int len);
+extern int copy_from_user_tt(void *to, const void __user *from, int n);
+extern int copy_to_user_tt(void __user *to, const void *from, int n);
+extern int strncpy_from_user_tt(char *dst, const char __user *src, int count);
+extern int __clear_user_tt(void __user *mem, int len);
+extern int clear_user_tt(void __user *mem, int len);
+extern int strnlen_user_tt(const void __user *str, int len);
 
 #endif
 
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index b03326d391c9..af11915ce0a8 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -93,14 +93,10 @@ SECTIONS
    *(.bss)
    *(COMMON)
   }
-  _end = . ;
+  _end = .;
   PROVIDE (end = .);
-  /* Stabs debugging sections.  */
-  .stab 0 : { *(.stab) }
-  .stabstr 0 : { *(.stabstr) }
-  .stab.excl 0 : { *(.stab.excl) }
-  .stab.exclstr 0 : { *(.stab.exclstr) }
-  .stab.index 0 : { *(.stab.index) }
-  .stab.indexstr 0 : { *(.stab.indexstr) }
-  .comment 0 : { *(.comment) }
+
+  STABS_DEBUG
+
+  DWARF_DEBUG
 }