[PATCH] sparc32: vm_area_struct access for old Sun SPARCs.

Commit e4c6bfd2d79d063017ab19a18915f0bc759f32d9 ("mm: rearrange
vm_area_struct for fewer cache misses") changed the layout of the
vm_area_struct structure, it broke several SPARC32 assembly routines
which used numerical constants for accessing the vm_mm field.

This patch defines the VMA_VM_MM constant to replace the immediate values.

Signed-off-by: Olivier DANET <odanet@caramail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
index c801c39..5d2b88d 100644
--- a/arch/sparc/mm/swift.S
+++ b/arch/sparc/mm/swift.S
@@ -105,7 +105,7 @@
 
 	.globl	swift_flush_cache_range
 swift_flush_cache_range:
-	ld	[%o0 + 0x0], %o0		/* XXX vma->vm_mm, GROSS XXX */
+	ld	[%o0 + VMA_VM_MM], %o0
 	sub	%o2, %o1, %o2
 	sethi	%hi(4096), %o3
 	cmp	%o2, %o3
@@ -116,7 +116,7 @@
 
 	.globl	swift_flush_cache_page
 swift_flush_cache_page:
-	ld	[%o0 + 0x0], %o0		/* XXX vma->vm_mm, GROSS XXX */
+	ld	[%o0 + VMA_VM_MM], %o0
 70:
 	ld	[%o0 + AOFF_mm_context], %g2
 	cmp	%g2, -1
@@ -219,7 +219,7 @@
 	.globl	swift_flush_tlb_range
 	.globl	swift_flush_tlb_all
 swift_flush_tlb_range:
-	ld	[%o0 + 0x00], %o0	/* XXX vma->vm_mm GROSS XXX */
+	ld	[%o0 + VMA_VM_MM], %o0
 swift_flush_tlb_mm:
 	ld	[%o0 + AOFF_mm_context], %g2
 	cmp	%g2, -1
@@ -233,7 +233,7 @@
 
 	.globl	swift_flush_tlb_page
 swift_flush_tlb_page:
-	ld	[%o0 + 0x00], %o0	/* XXX vma->vm_mm GROSS XXX */
+	ld	[%o0 + VMA_VM_MM], %o0
 	mov	SRMMU_CTX_REG, %g1
 	ld	[%o0 + AOFF_mm_context], %o3
 	andn	%o1, (PAGE_SIZE - 1), %o1