powerpc/mm: Switch some TASK_SIZE checks to use mm_context addr_limit

[linux-2.6-block.git] / arch / powerpc / mm / mmap.c

diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index a5d9ef59debe25a4920c71ddf25ca6f09202220c..6e9fead92969c38222ba0e1b54e7473d0a5bc7a2 100644 (file)
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -97,7 +97,7 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
        struct vm_area_struct *vma;
        struct vm_unmapped_area_info info;
 
-       if (len > TASK_SIZE - mmap_min_addr)
+       if (len > mm->context.addr_limit - mmap_min_addr)
                return -ENOMEM;
 
        if (flags & MAP_FIXED)
@@ -106,7 +106,7 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
        if (addr) {
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
-               if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
+               if (mm->context.addr_limit - len >= addr && addr >= mmap_min_addr &&
                    (!vma || addr + len <= vma->vm_start))
                        return addr;
        }
@@ -114,7 +114,7 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
        info.flags = 0;
        info.length = len;
        info.low_limit = mm->mmap_base;
-       info.high_limit = TASK_SIZE;
+       info.high_limit = mm->context.addr_limit;
        info.align_mask = 0;
        return vm_unmapped_area(&info);
 }
@@ -132,7 +132,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
        struct vm_unmapped_area_info info;
 
        /* requested length too big for entire address space */
-       if (len > TASK_SIZE - mmap_min_addr)
+       if (len > mm->context.addr_limit - mmap_min_addr)
                return -ENOMEM;
 
        if (flags & MAP_FIXED)
@@ -142,7 +142,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
        if (addr) {
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
-               if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
+               if (mm->context.addr_limit - len >= addr && addr >= mmap_min_addr &&
                                (!vma || addr + len <= vma->vm_start))
                        return addr;
        }
@@ -164,7 +164,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
                VM_BUG_ON(addr != -ENOMEM);
                info.flags = 0;
                info.low_limit = TASK_UNMAPPED_BASE;
-               info.high_limit = TASK_SIZE;
+               info.high_limit = mm->context.addr_limit;
                addr = vm_unmapped_area(&info);
        }