linux-kernel - [PATCH 0/5] srcu: Fix boot stall v2

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Message-Id: <20210408223902.6405-1-frederic@kernel.org>
Date:   Fri,  9 Apr 2021 00:38:57 +0200
From:   Frederic Weisbecker <frederic@...nel.org>
To:     "Paul E . McKenney" <paulmck@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Uladzislau Rezki <urezki@...il.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Neeraj Upadhyay <neeraju@...eaurora.org>,
        Josh Triplett <josh@...htriplett.org>,
        Joel Fernandes <joel@...lfernandes.org>
Subject: [PATCH 0/5] srcu: Fix boot stall v2


So here is a different approach to solve the early SRCU issue.
Early initialized ssp's are reset on srcu_init() and their callbacks get
requeued.

I expanded testing in the last patch.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	rcu/dev

HEAD: 0dc3551822c74a0f34783cbd64a9199c9758ec6d

Thanks,
	Frederic
---

Frederic Weisbecker (5):
      srcu: Unconditionally embed struct lockdep_map
      srcu: Initialize SRCU after timers
      srcu: Fix broken node geometry after early ssp init
      srcu: Queue a callback in case of early started poll
      srcu: Early test SRCU polling start


 include/linux/srcu.h     |   6 +++
 include/linux/srcutree.h |   4 +-
 init/main.c              |   2 +
 kernel/rcu/rcu.h         |   6 ---
 kernel/rcu/srcutree.c    | 119 ++++++++++++++++++++++++++++++++++++++++++-----
 kernel/rcu/tiny.c        |   1 -
 kernel/rcu/tree.c        |   1 -
 kernel/rcu/update.c      |  12 ++++-
 8 files changed, 129 insertions(+), 22 deletions(-)