From: Christoph Hellwig <hch@infradead.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-team@meta.com, rostedt@goodmis.org, peterz@infradead.org,
andrii@kernel.org
Subject: Re: [PATCH rcu] srcu: Guarantee non-negative return value from srcu_read_lock()
Date: Mon, 21 Oct 2024 23:51:40 -0700 [thread overview]
Message-ID: <ZxdLfLWWrAEfRiXV@infradead.org> (raw)
In-Reply-To: <97594073-e296-4876-9d6a-1e4a4f33d857@paulmck-laptop>
On Mon, Oct 21, 2024 at 03:13:05PM -0700, Paul E. McKenney wrote:
> For almost 20 years, the int return value from srcu_read_lock() has
> been always either zero or one. This commit therefore documents the
> fact that it will be non-negative.
If it is always zero or one, wouldn't bool the better return value
type?
next prev parent reply other threads:[~2024-10-22 6:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-21 22:13 [PATCH rcu] srcu: Guarantee non-negative return value from srcu_read_lock() Paul E. McKenney
2024-10-21 23:50 ` Andrii Nakryiko
2024-10-22 0:21 ` Paul E. McKenney
2024-10-22 2:01 ` Andrii Nakryiko
2024-10-22 3:30 ` Paul E. McKenney
2024-10-22 3:40 ` Andrii Nakryiko
2024-10-22 7:07 ` Peter Zijlstra
2024-10-22 14:27 ` Paul E. McKenney
2024-10-22 6:51 ` Christoph Hellwig [this message]
2024-10-22 7:06 ` Peter Zijlstra
2024-10-22 7:07 ` Christoph Hellwig
2024-10-22 7:10 ` Peter Zijlstra
2024-10-22 7:13 ` Christoph Hellwig
2024-10-22 14:26 ` Paul E. McKenney
2024-10-22 17:29 ` Andrii Nakryiko
2024-10-23 6:40 ` Christoph Hellwig
2024-10-23 16:34 ` Andrii Nakryiko
2024-10-23 16:46 ` Alan Huang
2024-10-23 16:59 ` Andrii Nakryiko
2024-10-23 6:58 ` Alan Huang
2024-10-23 16:40 ` Paul E. McKenney
2024-10-23 16:56 ` Alan Huang
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