---

yaml --- r: 356136 b: refs/heads/master c: 486c0a0 h: refs/heads/master v: v3
git-mirror · Feb 14, 2013 · e897442 · e897442
1 parent 43daed8
commit e897442
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Showing 3 changed files with 9 additions and 6 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a4e69245bd7793a620ed67442c00fa1f2dd56891
+refs/heads/master: 486c0a0bc80d370471b21662bf03f04fbb37cdc6
diff --git a/trunk/arch/s390/include/asm/mman.h b/trunk/arch/s390/include/asm/mman.h
@@ -9,7 +9,7 @@
 #include <uapi/asm/mman.h>
 
 #if !defined(__ASSEMBLY__) && defined(CONFIG_64BIT)
-int s390_mmap_check(unsigned long addr, unsigned long len);
-#define arch_mmap_check(addr,len,flags)	s390_mmap_check(addr,len)
+int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
+#define arch_mmap_check(addr, len, flags) s390_mmap_check(addr, len, flags)
 #endif
 #endif /* __S390_MMAN_H__ */
diff --git a/trunk/arch/s390/mm/mmap.c b/trunk/arch/s390/mm/mmap.c
@@ -101,12 +101,15 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 #else
 
-int s390_mmap_check(unsigned long addr, unsigned long len)
+int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
 {
 	int rc;
 
-	if (!is_compat_task() &&
-	    len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) {
+	if (is_compat_task() || (TASK_SIZE >= (1UL << 53)))
+		return 0;
+	if (!(flags & MAP_FIXED))
+		addr = 0;
+	if ((addr + len) >= TASK_SIZE) {
 		rc = crst_table_upgrade(current->mm, 1UL << 53);
 		if (rc)
 			return rc;