[IA64] Rationalise Region Definitions

Currently, region numbers are defined in several files, with several 
names.  For example, we have REGION_KERNEL in asm/page.h and 
RGN_KERNEL in pgtable.h 
 
We also have address definitions that should depend on the 
RGN_XXX macros, but are currently just long constants. 
 
The following patch reorganises all the definitions so that they have 
the same form (RGN_XXX), are in one place, and that addresses that 
depend on RGN_XXX are derived from them. 

(This is a necessary but not sufficient patch to allow UML-like 
operation on IA64). 

Thanks to David Mosberger for catching the change I missed in mmu_context.h.
 
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au> 
Signed-off-by: Tony Luck <tony.luck@intel.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 770fab37928e..f2dbcd1db0d4 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -35,7 +35,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
                 return -ENOMEM;
 
 #ifdef CONFIG_HUGETLB_PAGE
-        if (REGION_NUMBER(addr) == REGION_HPAGE)
+        if (REGION_NUMBER(addr) == RGN_HPAGE)
                 addr = 0;
 #endif
         if (!addr)
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index e0a776a3044c..2d13889d0a99 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -76,7 +76,7 @@ int is_aligned_hugepage_range(unsigned long addr, unsigned long len)
                 return -EINVAL;
         if (addr & ~HPAGE_MASK)
                 return -EINVAL;
-        if (REGION_NUMBER(addr) != REGION_HPAGE)
+        if (REGION_NUMBER(addr) != RGN_HPAGE)
                 return -EINVAL;
 
         return 0;
@@ -87,7 +87,7 @@ struct page *follow_huge_addr(struct mm_struct *mm, unsigned long addr, int writ
         struct page *page;
         pte_t *ptep;
 
-        if (REGION_NUMBER(addr) != REGION_HPAGE)
+        if (REGION_NUMBER(addr) != RGN_HPAGE)
                 return ERR_PTR(-EINVAL);
 
         ptep = huge_pte_offset(mm, addr);
@@ -142,8 +142,8 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u
                 return -ENOMEM;
         if (len & ~HPAGE_MASK)
                 return -EINVAL;
-        /* This code assumes that REGION_HPAGE != 0. */
-        if ((REGION_NUMBER(addr) != REGION_HPAGE) || (addr & (HPAGE_SIZE - 1)))
+        /* This code assumes that RGN_HPAGE != 0. */
+        if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1)))
                 addr = HPAGE_REGION_BASE;
         else
                 addr = ALIGN(addr, HPAGE_SIZE);