tree 2c83a38a1d090da464c435486e4a2e6f4afbacd2
parent ff9a082fda424257976f08fce942609f358015e0
parent 86a574de4590ffe6fd3f3ca34cdcf655a78e36ec
author Linus Torvalds <torvalds@linux-foundation.org> 1469657515 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1469657515 -0700
mergetag object 86a574de4590ffe6fd3f3ca34cdcf655a78e36ec
 type commit
 tag random_for_linus
 tagger Theodore Ts'o <tytso@mit.edu> 1469427417 -0400
 
 A number of improvements for the /dev/random driver; the most
 important is the use of a ChaCha20-based CRNG for /dev/urandom, which
 is faster, more efficient, and easier to make scalable for
 silly/abusive userspace programs that want to read from /dev/urandom
 in a tight loop on NUMA systems.
 
 This set of patches also improves entropy gathering on VM's running on
 Microsoft Azure, and will take advantage of a hw random number
 generator (if present) to initialize the /dev/urandom pool.
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

Pull random driver updates from Ted Ts'o:
 "A number of improvements for the /dev/random driver; the most
  important is the use of a ChaCha20-based CRNG for /dev/urandom, which
  is faster, more efficient, and easier to make scalable for
  silly/abusive userspace programs that want to read from /dev/urandom
  in a tight loop on NUMA systems.

  This set of patches also improves entropy gathering on VM's running on
  Microsoft Azure, and will take advantage of a hw random number
  generator (if present) to initialize the /dev/urandom pool"

(It turns out that the random tree hadn't been in linux-next this time
around, because it had been dropped earlier as being too quiet.  Oh
well).

* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
  random: strengthen input validation for RNDADDTOENTCNT
  random: add backtracking protection to the CRNG
  random: make /dev/urandom scalable for silly userspace programs
  random: replace non-blocking pool with a Chacha20-based CRNG
  random: properly align get_random_int_hash
  random: add interrupt callback to VMBus IRQ handler
  random: print a warning for the first ten uninitialized random users
  random: initialize the non-blocking pool via add_hwgenerator_randomness()