[GIT PULL] random bug fixes for 4.12

[Theodore Ts'o]

The following changes since commit 9dfa7bba35ac08a63565d58c454dccb7e1bb0a08:

  fix race in drivers/char/random.c:get_reg() (2017-05-24 17:41:26 -0400)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random.git tags/random_for_linus_stable

for you to fetch changes up to b169c13de473a85b3c859bb36216a4cb5f00a54a:

  random: invalidate batched entropy after crng init (2017-06-07 19:45:37 -0400)

----------------------------------------------------------------
Improve performance by using a lockless update mechanism suggested by
Linus, and make sure we refresh per-CPU entropy returned get_random_*
as soon as the CRNG is initialized.

----------------------------------------------------------------
Jason A. Donenfeld (1):
      random: invalidate batched entropy after crng init

Theodore Ts'o (1):
      random: use lockless method of accessing and updating f->reg_idx

 drivers/char/random.c | 49 +++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 43 insertions(+), 6 deletions(-)