From: "Gary Guo" <gary@garyguo.net>
To: "Onur Özkan" <work@onurozkan.dev>,
rcu@vger.kernel.org, rust-for-linux@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: <ojeda@kernel.org>, <boqun@kernel.org>, <gary@garyguo.net>,
<bjorn3_gh@protonmail.com>, <lossin@kernel.org>,
<a.hindborg@kernel.org>, <aliceryhl@google.com>,
<tmgross@umich.edu>, <dakr@kernel.org>, <peterz@infradead.org>,
<fujita.tomonori@gmail.com>, <tamird@kernel.org>,
<jiangshanlai@gmail.com>, <paulmck@kernel.org>,
<josh@joshtriplett.org>, <rostedt@goodmis.org>,
<mathieu.desnoyers@efficios.com>
Subject: Re: [PATCH v8 2/4] srcu: expose srcu_readers_active()
Date: Fri, 29 May 2026 12:58:31 +0100 [thread overview]
Message-ID: <DIV55OQ2T6MA.2CZ4B7GG9EZ7T@garyguo.net> (raw)
In-Reply-To: <20260529114449.112066-3-work@onurozkan.dev>
On Fri May 29, 2026 at 12:43 PM BST, Onur Özkan wrote:
> This is needed by rust/helpers/srcu.c which now adds
> rust_helper_srcu_readers_active() as a wrapper around the SRCU helper
> for Rust callers.
>
> To achive this:
>
> 1- Move the srcu_readers_active() implementation from
> "kernel/rcu/srcutree.c" to "include/linux/srcutree.h".
>
> 2- Implement a matching srcu_readers_active() in
> "include/linux/srcutiny.h" and use it on the existing open-coded
> WARN_ON() check in cleanup_srcu_struct().
>
> Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
> Signed-off-by: Onur Özkan <work@onurozkan.dev>
Reviewed-by: Gary Guo <gary@garyguo.net>
> ---
> include/linux/srcutiny.h | 13 +++++++++++++
> include/linux/srcutree.h | 24 ++++++++++++++++++++++++
> kernel/rcu/srcutiny.c | 2 +-
> kernel/rcu/srcutree.c | 25 -------------------------
> rust/helpers/srcu.c | 5 +++++
> 5 files changed, 43 insertions(+), 26 deletions(-)
next prev parent reply other threads:[~2026-05-29 11:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-29 11:43 [PATCH v8 0/4] rust: helpers: add SRCU helpers Onur Özkan
2026-05-29 11:43 ` [PATCH v8 1/4] " Onur Özkan
2026-05-29 11:58 ` Gary Guo
2026-05-29 12:07 ` Onur Özkan
2026-05-29 12:16 ` Gary Guo
2026-05-29 12:30 ` Onur Özkan
2026-05-30 19:01 ` Paul E. McKenney
2026-05-30 19:04 ` Onur Özkan
2026-05-29 11:43 ` [PATCH v8 2/4] srcu: expose srcu_readers_active() Onur Özkan
2026-05-29 11:58 ` Gary Guo [this message]
2026-05-29 11:43 ` [PATCH v8 3/4] rust: sync: add SRCU abstraction Onur Özkan
2026-05-29 11:43 ` [PATCH v8 4/4] MAINTAINERS: add Rust SRCU files to SRCU entry Onur Özkan
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