mm: larger stack guard gap, between vmas

[hercules2020/nv-tegra/linux-4.4.git] / arch / powerpc / mm / mmap.c

diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 9dbd2a733d6b12401ee9157cd6309cd835b2b87b..0ee6be4f1ba44e231da18c7e38d217610ac4bcd5 100644 (file)
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -112,7 +112,7 @@ radix__arch_get_unmapped_area(struct file *filp, unsigned long addr,
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
                if (mm->task_size - len >= addr && addr >= mmap_min_addr &&
-                   (!vma || addr + len <= vma->vm_start))
+                   (!vma || addr + len <= vm_start_gap(vma)))
                        return addr;
        }
 
@@ -157,7 +157,7 @@ radix__arch_get_unmapped_area_topdown(struct file *filp,
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
                if (mm->task_size - len >= addr && addr >= mmap_min_addr &&
-                               (!vma || addr + len <= vma->vm_start))
+                               (!vma || addr + len <= vm_start_gap(vma)))
                        return addr;
        }