From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 19 Jun 2022 14:47:41 +0000 (-0500)
Subject: Merge tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: baikal/mips/sdk6.1~5461
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=81e7b5c981533aa8a700caa07dcd4a56902ad5a1;p=kernel.git

Merge tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull lockdep fix from Thomas Gleixner:
 "A RT fix for lockdep.

  lockdep invokes prandom_u32() to create cookies. This worked until
  prandom_u32() was switched to the real random generator, which takes a
  spinlock for extraction, which does not work on RT when invoked from
  atomic contexts.

  lockdep has no requirement for real random numbers and it turns out
  sched_clock() is good enough to create the cookie. That works
  everywhere and is faster"

* tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Use sched_clock() for random numbers
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81e7b5c981533aa8a700caa07dcd4a56902ad5a1