From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-106112.protonmail.ch (mail-106112.protonmail.ch [79.135.106.112]) (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 66E4B317163; Thu, 16 Apr 2026 17:17:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.135.106.112 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776359859; cv=none; b=ruD4mVaRdxnqw2pOudmnzCAP+AK0sU8JAtjUx9eXibvfX/TBXtG6aAi29aWbTgMkOudyKPdyWDfK71Jq1b323SDQsRl24vXChVauI6PtsWpltwK4+uh1/XARr6+cwjDbszF9GcC+99PIvaWCcIj7b1/WjhPz5DSOdTXE8TZHnpc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776359859; c=relaxed/simple; bh=UHdcDdaUC/BRBzyjcTOP0gSYDOKIkkH+L29JAUmJeMA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TtcSq6q8euC9Ua/fsAVdXcjrfFdkuixSA6q9dSG4JpgXWObi4TPOPPlGdf3l/4kArZLNn1f+F4WbdaaS7RuJKSyAdBzZpkzZww/feQra5vtPOZ5zH+wXxnSpn48F3kkelQPdOQWA+xv9H6tiz2UhsRxPgEkDqTzGZPpucnxsUr8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=onurozkan.dev; spf=pass smtp.mailfrom=onurozkan.dev; dkim=pass (2048-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b=DYhGdGfP; arc=none smtp.client-ip=79.135.106.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b="DYhGdGfP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=protonmail; t=1776359854; x=1776619054; bh=kKkf/oVUaWX/TtBj3YjWMsOXTLOwLzh0/60F3Yx6pE8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:From:To: Cc:Date:Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=DYhGdGfPAhtnr7lPY5hhM8A9hKJeoqe5+NEamYNoyB/1EfTE4jloxQyVIBBI7pUSY M8uerP2o8emFGFhCUQMpjW/yQf6BGD7H9BFEoRh1Rxm5Qd1GhqZKzzJ3VxxVe3azse efKyT17mVoPIg6qvdiBFQbxis5gSYzx6X2Ft8YbAf7fG7Cx6GBPl+9VrJwx9uhdCzg xmLg7LqXuFcQWg9lO380aUQ98onXVbIxvvtpUPPzCJIU9JG/Y9my+773usWybyufYX OBb4+YNAPEZ+IK6nufIwms1Vzj7DUlkS7XYOzSpuWYYWII3NPf34CWSf2BydExiTU9 KX2v5/kc9VIUw== X-Pm-Submission-Id: 4fxPpN1zmzz1DDrS From: =?UTF-8?q?Onur=20=C3=96zkan?= To: dakr@kernel.org, aliceryhl@google.com, daniel.almeida@collabora.com, airlied@gmail.com, simona@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v2 3/4] rust: add Work::disable_sync Date: Thu, 16 Apr 2026 20:17:27 +0300 Message-ID: <20260416171728.205141-2-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260416171728.205141-1-work@onurozkan.dev> References: <20260416171728.205141-1-work@onurozkan.dev> 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 Adds Work::disable_sync() as a safe wrapper for disable_work_sync(). Drivers can use this during teardown to stop new queueing and wait for queued or running work to finish before dropping related resources. Signed-off-by: Onur Özkan --- rust/kernel/workqueue/mod.rs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/rust/kernel/workqueue/mod.rs b/rust/kernel/workqueue/mod.rs index e30c21214a81..7f63d778146e 100644 --- a/rust/kernel/workqueue/mod.rs +++ b/rust/kernel/workqueue/mod.rs @@ -582,6 +582,21 @@ pub unsafe fn raw_get(ptr: *const Self) -> *mut bindings::work_struct { // the compiler does not complain that the `work` field is unused. unsafe { Opaque::cast_into(core::ptr::addr_of!((*ptr).work)) } } + + /// Disables this work item and waits for queued/running executions to finish. + /// + /// # Note + /// + /// Should be called from a sleepable context if the work was last queued on a non-BH + /// workqueue. + #[inline] + pub fn disable_sync(&self) { + let ptr: *const Self = self; + // SAFETY: `self` points to a valid initialized work. + let raw_work = unsafe { Self::raw_get(ptr) }; + // SAFETY: `raw_work` is a valid embedded `work_struct`. + unsafe { bindings::disable_work_sync(raw_work) }; + } } /// Declares that a type contains a [`Work`]. -- 2.51.2