From nobody Thu Apr 9 10:52:49 2026 Received: from forward201b.mail.yandex.net (forward201b.mail.yandex.net [178.154.239.156]) (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 8A22433C19C for ; Mon, 9 Mar 2026 21:01:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.156 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773090093; cv=none; b=DtOL0hewhuu7zW/pmH9mVVzLbiBMdx9evoVmmp91KP08GNlWof9/UttMZPL2GlmjShlyAnX0SCe1YXuC0D6glvQAgcIyGllAVZQg//rmDwjtfiUSXs8Z6v8XRdDd7JQUhFm5LOWtZa5SpdVC8cqi6J5mjp2bbAXtoHExENv0D3s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773090093; c=relaxed/simple; bh=rvm/cuYhtXHic2YIzGwAshEiwloJulsPUxFUfu0WHmQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aGxSOYgZSOI9UoQyLXoDb5NC2TEvbvGnxKFo6foznud3cUzlnhPaob1NpqLsgkySxcMRlILZQtt0enMJXKWvYJcadhuqDxJwE+Fxoo6qIIAwT6iUtz08NEJHL7YHiy89+4RGR9yjhhEdEt/nzC/MN/InJvSFw5QrOOFW/ciJ5dw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=onurozkan.dev; spf=pass smtp.mailfrom=onurozkan.dev; dkim=pass (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b=iaa4wl+A; arc=none smtp.client-ip=178.154.239.156 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject 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 (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b="iaa4wl+A" Received: from forward103b.mail.yandex.net (forward103b.mail.yandex.net [IPv6:2a02:6b8:c02:900:1:45:d181:d103]) by forward201b.mail.yandex.net (Yandex) with ESMTPS id A7FE8C5122 for ; Mon, 09 Mar 2026 23:55:04 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net [IPv6:2a02:6b8:c08:ec27:0:640:5ac1:0]) by forward103b.mail.yandex.net (Yandex) with ESMTPS id 70FFFC0039; Mon, 09 Mar 2026 23:54:56 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id DsL9phmGm0U0-n02r8F1l; Mon, 09 Mar 2026 23:54:55 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1773089695; bh=296Sx8eOcmyen+kU5beNbjuR6rH7VCIG+e4tSjMIXSc=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=iaa4wl+AOooj5DvO7rh93NzjcBCZPN5R2QmEJrVxCjVxcOBuyi+D2K4Fr0lk609hb sbqA6Ke+YfO9jnCY3NAhw5JjbSJbFtXXTQ+IPkNbKj6Xy2jH1hDYGfkmNaywXUe8+p DW3tXp6h7nnC5PjXguKBW1umr4P+RdCLQZ0Hjy/A= Authentication-Results: mail-nwsmtp-smtp-production-main-89.sas.yp-c.yandex.net; dkim=pass header.i=@onurozkan.dev From: =?UTF-8?q?Onur=20=C3=96zkan?= To: linux-kernel@vger.kernel.org Cc: dakr@kernel.org, aliceryhl@google.com, daniel.almeida@collabora.com, airlied@gmail.com, simona@ffwll.ch, =?UTF-8?q?Onur=20=C3=96zkan?= , Deborah Brouwer Subject: [PATCH v1 2/4] rust: add Work::disable_sync Date: Mon, 9 Mar 2026 23:53:17 +0300 Message-ID: <20260309205403.34390-3-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260309205403.34390-1-work@onurozkan.dev> References: <20260309205403.34390-1-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: quoted-printable Add 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. Tested-by: Deborah Brouwer Signed-off-by: Onur =C3=96zkan --- rust/kernel/workqueue.rs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/rust/kernel/workqueue.rs b/rust/kernel/workqueue.rs index 706e833e9702..6acc7b5ba31c 100644 --- a/rust/kernel/workqueue.rs +++ b/rust/kernel/workqueue.rs @@ -530,6 +530,21 @@ pub unsafe fn raw_get(ptr: *const Self) -> *mut bindin= gs::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. + /// + /// # Safety + /// + /// Must be called from a sleepable context if the work was last queue= d on a non-BH + /// workqueue. + #[inline] + pub unsafe fn disable_sync(&self) { + let ptr: *const Self =3D self; + // SAFETY: `self` points to a valid initialized work. + let raw_work =3D unsafe { Self::raw_get(ptr) }; + // SAFETY: `raw_work` is a valid embedded `work_struct`. + unsafe { bindings::disable_work_sync(raw_work) }; + } } =20 /// Declares that a type contains a [`Work`]. --=20 2.51.2