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From: Frederic Weisbecker <frederic@kernel.org>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	Uladzislau Rezki <urezki@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	Neeraj Upadhyay <neeraju@codeaurora.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 0/5] srcu: Fix boot stall v2
Date: Fri,  9 Apr 2021 00:38:57 +0200	[thread overview]
Message-ID: <20210408223902.6405-1-frederic@kernel.org> (raw)


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(-)

             reply	other threads:[~2021-04-08 22:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-08 22:38 Frederic Weisbecker [this message]
2021-04-08 22:38 ` [PATCH 1/5] srcu: Unconditionally embed struct lockdep_map Frederic Weisbecker
2021-04-08 22:38 ` [PATCH 2/5] srcu: Initialize SRCU after timers Frederic Weisbecker
2021-04-09 20:05   ` Paul E. McKenney
2021-04-08 22:39 ` [PATCH 3/5] srcu: Fix broken node geometry after early ssp init Frederic Weisbecker
2021-04-08 22:39 ` [PATCH 4/5] srcu: Queue a callback in case of early started poll Frederic Weisbecker
2021-04-08 22:39 ` [PATCH 5/5] srcu: Early test SRCU polling start Frederic Weisbecker

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