[PATCH v3 0/2] random: PREEMPT_RT fixes

From: Jason A. Donenfeld
Date: Mon Feb 07 2022 - 10:44:41 EST


Here are the two patches we've been looking at thus far in separate
threads, now brought together as one patchset. This doesn't fix _all_ of
the PREEMPT_RT issues, but it does very much move in the right direction
of having less locking in places where that matters.

Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Theodore Ts'o <tytso@xxxxxxx>
Cc: Sultan Alsawaf <sultan@xxxxxxxxxxxxxxx>
Cc: Jonathan Neuschäfer <j.neuschaefer@xxxxxxx>

Jason A. Donenfeld (2):
random: remove batched entropy locking
random: defer fast pool mixing to worker

drivers/char/random.c | 101 +++++++++++++++++++---------------
include/trace/events/random.h | 6 --
2 files changed, 56 insertions(+), 51 deletions(-)

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2.35.0