4 files changed, 56 insertions, 2 deletions

diff --git a/lib/Makefile b/lib/Makefile
index c8567a59d316..3f1062cbbff4 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -21,7 +21,7 @@ lib-y	+= kobject.o kref.o klist.o
 
 obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
          bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
-         string_helpers.o gcd.o lcm.o list_sort.o
+         string_helpers.o gcd.o lcm.o list_sort.o uuid.o
 
 ifeq ($(CONFIG_DEBUG_KOBJECT),y)
 CFLAGS_kobject.o += -DDEBUG
diff --git a/lib/atomic64_test.c b/lib/atomic64_test.c
index 65e482caf5e9..9087d71537dd 100644
--- a/lib/atomic64_test.c
+++ b/lib/atomic64_test.c
@@ -9,6 +9,7 @@
  * (at your option) any later version.
  */
 #include <linux/init.h>
+#include <linux/kernel.h>
 #include <asm/atomic.h>
 
 #define INIT(c) do { atomic64_set(&v, c); r = c; } while (0)
diff --git a/lib/bitmap.c b/lib/bitmap.c
index d7137e7e06e8..ffb78c916ccd 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -672,7 +672,7 @@ static int bitmap_pos_to_ord(const unsigned long *buf, int pos, int bits)
  *
  * The bit positions 0 through @bits are valid positions in @buf.
  */
-int bitmap_ord_to_pos(const unsigned long *buf, int ord, int bits)
+static int bitmap_ord_to_pos(const unsigned long *buf, int ord, int bits)
 {
         int pos = 0;
 
diff --git a/lib/uuid.c b/lib/uuid.c
new file mode 100644
index 000000000000..8fadd7cef46c
--- /dev/null
+++ b/lib/uuid.c
@@ -0,0 +1,53 @@
+/*
+ * Unified UUID/GUID definition
+ *
+ * Copyright (C) 2009, Intel Corp.
+ *      Huang Ying <ying.huang@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/uuid.h>
+#include <linux/random.h>
+
+static void __uuid_gen_common(__u8 b[16])
+{
+        int i;
+        u32 r;
+
+        for (i = 0; i < 4; i++) {
+                r = random32();
+                memcpy(b + i * 4, &r, 4);
+        }
+        /* reversion 0b10 */
+        b[8] = (b[8] & 0x3F) | 0x80;
+}
+
+void uuid_le_gen(uuid_le *lu)
+{
+        __uuid_gen_common(lu->b);
+        /* version 4 : random generation */
+        lu->b[7] = (lu->b[7] & 0x0F) | 0x40;
+}
+EXPORT_SYMBOL_GPL(uuid_le_gen);
+
+void uuid_be_gen(uuid_be *bu)
+{
+        __uuid_gen_common(bu->b);
+        /* version 4 : random generation */
+        bu->b[6] = (bu->b[6] & 0x0F) | 0x40;
+}
+EXPORT_SYMBOL_GPL(uuid_be_gen);