From 704b49a9d8e56f8e5073478e726663f8f6ae67de Mon Sep 17 00:00:00 2001
From: David Gibson <david@gibson.dropbear.id.au>
Date: Tue, 14 Nov 2006 02:03:38 -0800
Subject: [PATCH] --- yaml --- r: 40909 b: refs/heads/master c:
 cb07c9a1864a8eac9f3123e428100d5b2a16e65a h: refs/heads/master i:   40907:
 a18020b88df3e544e19fbd6ba9131be5effd87f2 v: v3

---
 [refs]          | 2 +-
 trunk/mm/mmap.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 266304862c33..20d2d4f87f1d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 68589bc353037f233fe510ad9ff432338c95db66
+refs/heads/master: cb07c9a1864a8eac9f3123e428100d5b2a16e65a
diff --git a/trunk/mm/mmap.c b/trunk/mm/mmap.c
index bdace87d7c01..2526463c99a7 100644
--- a/trunk/mm/mmap.c
+++ b/trunk/mm/mmap.c
@@ -1880,6 +1880,10 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
 	if ((addr + len) > TASK_SIZE || (addr + len) < addr)
 		return -EINVAL;
 
+	error = is_hugepage_only_range(current->mm, addr, len);
+	if (error)
+		return error;
+
 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
 
 	error = arch_mmap_check(addr, len, flags);