X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fia64%2Fkernel%2Fsys_ia64.c;h=1eda194b95595110497adb009e457f8fe5c9d116;hb=c36c282b88963d0957368a443168588e62301fda;hp=9ef62a3fbfad5a37fad2df187603d7bb152f1468;hpb=0bc0748dfbefacce9c6b67ab23f2c80133b598f7;p=linux-2.6-omap-h63xx.git

diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 9ef62a3fbfa..1eda194b955 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -13,7 +13,6 @@
 #include <linux/shm.h>
 #include <linux/file.h>		/* doh, must come after sched.h... */
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/syscalls.h>
 #include <linux/highuid.h>
 #include <linux/hugetlb.h>
@@ -33,6 +32,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
 	if (len > RGN_MAP_LIMIT)
 		return -ENOMEM;
 
+	/* handle fixed mapping: prevent overlap with huge pages */
+	if (flags & MAP_FIXED) {
+		if (is_hugepage_only_range(mm, addr, len))
+			return -EINVAL;
+		return addr;
+	}
+
 #ifdef CONFIG_HUGETLB_PAGE
 	if (REGION_NUMBER(addr) == RGN_HPAGE)
 		addr = 0;