linux-kernel - [PATCH 0/2] A couple of qspinlock fixes

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Message-Id: <1518528177-19169-1-git-send-email-will.deacon@arm.com>
Date:   Tue, 13 Feb 2018 13:22:55 +0000
From:   Will Deacon <will.deacon@....com>
To:     linux-kernel@...r.kernel.org
Cc:     peterz@...radead.org, mingo@...hat.com,
        Will Deacon <will.deacon@....com>
Subject: [PATCH 0/2] A couple of qspinlock fixes

Hi all,

Here are a couple of fixes for qspinlock issues I've found by code
inspection whilst investigating the possibility of enabling this for
arm64. The first patch fixes a problem with unusual hardware re-ordering
whilst the second fixes a problem with unusual compiler re-ordering.

Cheers,

Will

--->8

Will Deacon (2):
  locking/qspinlock: Ensure node is initialised before updating
    prev->next
  locking/qspinlock: Ensure node->count is updated before initialising
    node

 kernel/locking/qspinlock.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

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2.1.4