mm: larger stack guard gap, between vmas

[karo-tx-linux.git] / arch / x86 / kernel / sys_x86_64.c

diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 207b8f2582c75b7c80a882ffc92a720071c8277e..213ddf3e937d800577514a3677f742813298555e 100644 (file)
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -144,7 +144,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
                if (end - len >= addr &&
-                   (!vma || addr + len <= vma->vm_start))
+                   (!vma || addr + len <= vm_start_gap(vma)))
                        return addr;
        }
 
@@ -187,7 +187,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
                addr = PAGE_ALIGN(addr);
                vma = find_vma(mm, addr);
                if (TASK_SIZE - len >= addr &&
-                               (!vma || addr + len <= vma->vm_start))
+                               (!vma || addr + len <= vm_start_gap(vma)))
                        return addr;
        }