Merge branch 'master' into for-2.6.31

Conflicts:
	drivers/block/hd.c
	drivers/block/mg_disk.c

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 12 insertions, 7 deletions

diff --git a/drivers/char/random.c b/drivers/char/random.c
index f824ef8a9273..8c7444857a4b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1665,15 +1665,20 @@ EXPORT_SYMBOL(secure_dccp_sequence_number);
  * value is not cryptographically secure but for several uses the cost of
  * depleting entropy is too high
  */
+DEFINE_PER_CPU(__u32 [4], get_random_int_hash);
 unsigned int get_random_int(void)
 {
-        /*
-         * Use IP's RNG. It suits our purpose perfectly: it re-keys itself
-         * every second, from the entropy pool (and thus creates a limited
-         * drain on it), and uses halfMD4Transform within the second. We
-         * also mix it with jiffies and the PID:
-         */
-        return secure_ip_id((__force __be32)(current->pid + jiffies));
+        struct keydata *keyptr;
+        __u32 *hash = get_cpu_var(get_random_int_hash);
+        int ret;
+
+        keyptr = get_keyptr();
+        hash[0] += current->pid + jiffies + get_cycles();
+
+        ret = half_md4_transform(hash, keyptr->secret);
+        put_cpu_var(get_random_int_hash);
+
+        return ret;
 }
 
 /*