net/route: use get_random_int for random counter
authorJason A. Donenfeld <Jason@zx2c4.com>
Thu, 8 Jun 2017 03:01:20 +0000 (23:01 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Tue, 20 Jun 2017 02:06:28 +0000 (22:06 -0400)
commit7aed9f72c3c70bdc18e72ec086c1a0eafdcd273f
tree721f4c8aee15729fc98cfe1ed2c602397f2fe890
parentb3d0f7895d1251f0af0dd38410e7be3e52be4a1d
net/route: use get_random_int for random counter

Using get_random_int here is faster, more fitting of the use case, and
just as cryptographically secure. It also has the benefit of providing
better randomness at early boot, which is when many of these structures
are assigned.

Also, semantically, it's not really proper to have been assigning an
atomic_t in this way before, even if in practice it works fine.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
net/ipv4/route.c