From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 36DDB3D9DCE; Wed, 24 Jun 2026 15:08:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782313704; cv=none; b=JWFXZMizGTs2eFsrCS0cIhN8v9vG+85bRLMCB5TtIkP+joNis3MtiJWlRE44V+0ol7avCBvtszjIj6bHBdMoKeRMjfVVNPWWuJm9Br2yJidxRyNbjQxeT8QafPmg8HfY5dU/j5IrRDyqz14neNljDFLgBiEbBDt/eecr3rRGbrQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782313704; c=relaxed/simple; bh=yYne0D+X95Cl2x0+B31Bu36L/GB1ulKPzVKk0W7po5o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=A8+5Nyh1TLOcatUdcT+L/E210aejsGQFXSwYf5xMuf9njvVj3dFH1bUFTRAzTvwJBidGryMKyH3+Z2fLIwQXON4oZd9DnHX6syQYagKuooC6xPH/ddkn63nRSeQFu/uUdOpTKRI+GldjnrX4IuIm1Lwwrkp8E2TsYZRIYsKirRo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AB9k+9Ib; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AB9k+9Ib" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E30361F000E9; Wed, 24 Jun 2026 15:08:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782313702; bh=V87HSt3XX1YmkoA+Yfy8+hIojz3pOrFUFJ8qDbErYVg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=AB9k+9Ibv5J7HrWUQGWjJmvBwLURNW4SSnIY/mU162CTBihemON1A69r1iI+yYwwW GL+wB8RVlpQGIe3H2NLok5t1skRV83lew/pZ/yZ8SChavOu4EH+8LNfzW4XfoMnMnt BQKtXe0b6AhlqStBzrKlr1G23bOHtGPIssES3Y1JEEkeovr7o+HspJa0NCNRr8uXmi wYokvo8isQa9OEQxYm9tm4q0gyT++7KMgMxAqjFMCAxMMgOQSdObPA4BADKyncwYvq ddGgkDwpucBytz+tdb46aq1rNFFZe9UMzRoclf35cXKOPNy+Wl1fvhKFfwcFCimISG TjYVfKprPShhA== From: Philipp Stanner To: Miguel Ojeda , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Daniel Almeida , Tamir Duberstein , Alexandre Courbot , =?UTF-8?q?Onur=20=C3=96zkan?= , Alexander Viro , Christian Brauner , Jan Kara , Lyude Paul , "Paul E. McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Uladzislau Rezki , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Christian Schrefl , Philipp Stanner Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, rcu@vger.kernel.org Subject: [PATCH v3 2/3] rust: revocable: Use safe synchronize_rcu() abstraction Date: Wed, 24 Jun 2026 17:07:03 +0200 Message-ID: <20260624150704.1504001-4-phasta@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260624150704.1504001-2-phasta@kernel.org> References: <20260624150704.1504001-2-phasta@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We now have a safe wrapper for the foreign function synchronize_rcu(). Use it in revocable.rs. Signed-off-by: Philipp Stanner Reviewed-by: Onur Özkan Reviewed-by: Danilo Krummrich Reviewed-by: Gary Guo --- rust/kernel/revocable.rs | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/rust/kernel/revocable.rs b/rust/kernel/revocable.rs index 0f4ae673256d..f539603349f1 100644 --- a/rust/kernel/revocable.rs +++ b/rust/kernel/revocable.rs @@ -7,7 +7,11 @@ use pin_init::Wrapper; -use crate::{bindings, prelude::*, sync::rcu, types::Opaque}; +use crate::{ + prelude::*, + sync::rcu, + types::Opaque, // +}; use core::{ marker::PhantomData, ops::Deref, @@ -161,8 +165,7 @@ unsafe fn revoke_internal(&self) -> bool { if revoke { if SYNC { - // SAFETY: Just an FFI call, there are no further requirements. - unsafe { bindings::synchronize_rcu() }; + rcu::synchronize_rcu(); } // SAFETY: We know `self.data` is valid because only one CPU can succeed the -- 2.54.0