From 70ed42c3d26da3f48f7fd44e49351ccb635973aa Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Sat, 2 Feb 2013 23:44:59 +0000
Subject: [PATCH] --- yaml --- r: 356312 b: refs/heads/master c:
 5ca8b91df88fa417aa7aac19494a8ae1602db2cb h: refs/heads/master v: v3

---
 [refs]                                | 2 +-
 trunk/arch/parisc/kernel/sys_parisc.c | 9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/[refs] b/[refs]
index a42280280032..1516c2fff963 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 027f27c4eca00b4411fb1fe61c33060569ff73f6
+refs/heads/master: 5ca8b91df88fa417aa7aac19494a8ae1602db2cb
diff --git a/trunk/arch/parisc/kernel/sys_parisc.c b/trunk/arch/parisc/kernel/sys_parisc.c
index f76c10863c62..a047b3227e50 100644
--- a/trunk/arch/parisc/kernel/sys_parisc.c
+++ b/trunk/arch/parisc/kernel/sys_parisc.c
@@ -94,11 +94,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 {
 	if (len > TASK_SIZE)
 		return -ENOMEM;
-	/* Might want to check for cache aliasing issues for MAP_FIXED case
-	 * like ARM or MIPS ??? --BenH.
-	 */
-	if (flags & MAP_FIXED)
+	if (flags & MAP_FIXED) {
+		if ((flags & MAP_SHARED) &&
+		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+			return -EINVAL;
 		return addr;
+	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;