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 8385E3DD529; Thu, 18 Jun 2026 10:01:19 +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=1781776880; cv=none; b=Zu/TGOwHadZ1woT960tuEGj8VTjzPzb4SCppR1r/r/g9515xh/s75GPW/KuA6ALr8oF2fv74MsIvBuRfe80806LKUWS2NA93wI7S1Xrv1S0H5BN806/s/2BYsOhM+3qIjKiyyTxk+ggD2KF4nXoOG1h+h6DVccNbZJvxJPWNEg8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781776880; c=relaxed/simple; bh=UQeWOeeISozzBbLkPlIIdJ3M3iLBOvvaurqH1Ny9i2s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jXwvHb+Yevi7zg/xc1qEn9F0YxqNq66eIMbG83WX9QlW/DTddzYMb9QoKNJKn0f9IbqudnMCPaqxMLBCyPKiljSaGEJB4K7PNAuLOkXO3eI8VGvNhf7TgsYkdEQ+YWNkSsEFOYAR3diCD7l82+P/pwtPuxwLCyO96EMGjrruYds= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H38arIuE; 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="H38arIuE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12F6B1F000E9; Thu, 18 Jun 2026 10:01:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781776879; bh=j+iLLdUeSfRLT5BvjkUONmocvI3rlTHmwrGh4d8H/sE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=H38arIuEW5PzKQ7pd6KftFtqEyNZvAnK3dk9DOxxqvf1pjtBefebUOWrf04slInJR yW3sGsxAbBFG37J0pvifGkU+JMxl0qcCvryB6mK1s/W41TdJPWjWXIBzp3+fDUvCF6 C1xLCztPO3jWaL1EVbNtHPOvMrD8NwAdTCaExKQFe9m6Nj+W6PXNbdTcpGY3fat/tB xohA6y1F5ZQrXfilGaA5yqP2fJHT9jRbx9O/83Yhbmxx53X9qU4+n2IW0S9TrNUR/D S+UlGETTjCwOPVQJhkWzG26lcoe+UaJ2wr0aHsqAruWvtVpv/wb0jdohX2iEcbwYiT 32AaSRWtfMOWA== 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 , Philipp Stanner , Christian Schrefl Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, rcu@vger.kernel.org Subject: [PATCH 2/3] rust: revocable: Use safe synchronize_rcu() abstraction Date: Thu, 18 Jun 2026 11:59:51 +0200 Message-ID: <20260618095952.3687099-3-phasta@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260618095952.3687099-1-phasta@kernel.org> References: <20260618095952.3687099-1-phasta@kernel.org> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- rust/kernel/revocable.rs | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/rust/kernel/revocable.rs b/rust/kernel/revocable.rs index 0f4ae673256d..66d4ee38754c 100644 --- a/rust/kernel/revocable.rs +++ b/rust/kernel/revocable.rs @@ -7,7 +7,7 @@ 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 +161,7 @@ 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