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Diffstat (limited to 'arch/powerpc/mm/hugetlbpage-radix.c')
-rw-r--r--arch/powerpc/mm/hugetlbpage-radix.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c
index 35254a678456..6575b9aabef4 100644
--- a/arch/powerpc/mm/hugetlbpage-radix.c
+++ b/arch/powerpc/mm/hugetlbpage-radix.c
@@ -50,9 +50,12 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
struct hstate *h = hstate_file(file);
struct vm_unmapped_area_info info;
+ if (unlikely(addr > mm->context.addr_limit && addr < TASK_SIZE))
+ mm->context.addr_limit = TASK_SIZE;
+
if (len & ~huge_page_mask(h))
return -EINVAL;
- if (len > TASK_SIZE)
+ if (len > mm->task_size)
return -ENOMEM;
if (flags & MAP_FIXED) {
@@ -64,7 +67,7 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
if (addr) {
addr = ALIGN(addr, huge_page_size(h));
vma = find_vma(mm, addr);
- if (TASK_SIZE - len >= addr &&
+ if (mm->task_size - len >= addr &&
(!vma || addr + len <= vma->vm_start))
return addr;
}
@@ -78,5 +81,9 @@ radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
info.high_limit = current->mm->mmap_base;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
info.align_offset = 0;
+
+ if (addr > DEFAULT_MAP_WINDOW)
+ info.high_limit += mm->context.addr_limit - DEFAULT_MAP_WINDOW;
+
return vm_unmapped_area(&info);
}