linux-kernel - [GIT PULL] CSD-lock diagnostic changes for v6.7

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Message-ID: <5a551b5a-7430-4916-9a23-b235b19d6283@paulmck-laptop>
Date:   Mon, 30 Oct 2023 15:26:58 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...a.com,
        riel@...riel.com, imran.f.khan@...cle.com, leobras@...hat.com,
        peterz@...radead.org, vschneid@...hat.com, jgross@...e.com
Subject: [GIT PULL] CSD-lock diagnostic changes for v6.7

Hello, Linus,

Please pull the following CSD-lock change:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/csd-lock.2023.10.23a
  # HEAD: 94b3f0b5af2c7af69e3d6e0cdd9b0ea535f22186: smp,csd: Throw an error if a CSD lock is stuck for too long (2023-10-16 16:06:37 -0700)

----------------------------------------------------------------
CSD lock commits for v6.7

This series adds a kernel boot parameter that causes the kernel to
panic if one of the call_smp_function() APIs is stalled for more than
the specified duration.  This is useful in deployments in which a clean
panic is preferable to an indefinite stall.

----------------------------------------------------------------
Rik van Riel (1):
      smp,csd: Throw an error if a CSD lock is stuck for too long

 Documentation/admin-guide/kernel-parameters.txt |  7 +++++++
 kernel/smp.c                                    | 13 ++++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)