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 C53144D2EDE; Tue, 9 Jun 2026 19:12:04 +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=1781032325; cv=none; b=XAzp3Jfk5YwYIza+gIxhxi9aqNUt8B4MZXhcD7Qwpvm/jvBY7FOIVsQ1/SMcUp4E+UFaB2XqYM0ELdt7ByvAPFJAeN/PeUjqwM3fKWbFtHCFYwk6eHOleIvDsPcyOCZAbyidX26Do506ytiCpcGdpu8Khnw/EDvKLpAULj8kiss= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781032325; c=relaxed/simple; bh=W0O2CczxZDQEXRc15dJETKMQ+dkKiMZR7U8tm411g7s=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RZfOPN/gL5RJhemES6nb87deyXPZPmiBLYG4teDjSOAplr+5pw2IgU/Lsn4kPBZrwCPoeiY0pfkuzddB6RhmVgm9oi3VDqc+5kiqzuy6FOE3r+xnu3h+gOJQBIvsUniKv2DdURHD8N+/gics+e7rw8XdXnKsm5+UlIXD7A9/zWU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KWh84ZQZ; 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="KWh84ZQZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1CC0C1F00893; Tue, 9 Jun 2026 19:11:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781032324; bh=+YoDlaRXxHkBdL9A3Iy3eyhP/tykMNVFwls11O+PbGw=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=KWh84ZQZbd6+abJoZIFIxRUn4c5TrwdxMM/86SAfgZTUh6LojigcMZcS5+SAofC+j 43O9jA6Q0PVLSoLmT5cekTXpstMmziu34IY4oicvKtd4/I28lKCaBG4zG1eWiBasq8 ZmXp24Rb7GmggbZSBZPaT217AwW0dz5zs8OnOgZ+OV6xFD11SFStdpDWVzIkolj5Op y557TTH3PeayehmmC7aY6efh5NWG00BEEznzp3sEYMtY2EK27SPUMGD97Z8DfGPlO5 V1XXt3jl+BFVTR/wq5KnKladB0fOdbR9OpNv51kuH3rMDxygWm+MUVtecbA37wwcJj 4KGuinCXguuQw== From: Andreas Hindborg Date: Tue, 09 Jun 2026 21:08:44 +0200 Subject: [PATCH v2 65/83] block: rust: add `GenDisk::tag_set` 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: 7bit Message-Id: <20260609-rnull-v6-19-rc5-send-v2-65-82c7404542e2@kernel.org> References: <20260609-rnull-v6-19-rc5-send-v2-0-82c7404542e2@kernel.org> In-Reply-To: <20260609-rnull-v6-19-rc5-send-v2-0-82c7404542e2@kernel.org> To: "Liam R. Howlett" , Alice Ryhl , Anna-Maria Behnsen , Benno Lossin , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Boqun Feng , Danilo Krummrich , FUJITA Tomonori , Frederic Weisbecker , Gary Guo , Jens Axboe , John Stultz , Lorenzo Stoakes , Lyude Paul , Miguel Ojeda , Stephen Boyd , Thomas Gleixner , Trevor Gross , "Liam R. Howlett" , Boqun Feng , Lorenzo Stoakes Cc: Andreas Hindborg , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, rust-for-linux@vger.kernel.org X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1759; i=a.hindborg@kernel.org; h=from:subject:message-id; bh=W0O2CczxZDQEXRc15dJETKMQ+dkKiMZR7U8tm411g7s=; b=owEBbQKS/ZANAwAKAfpQKQiqxb3QAcsmYgBqKGTvQ1j9ShlTi9k2Sxb2Wf0dabZIrqUisKav9 O2siS1ba22JAjMEAAEKAB0WIQRXitnI2WZ2JirAaob6UCkIqsW90AUCaihk7wAKCRD6UCkIqsW9 0FeWD/9yDXxLKGaEABjjYFcFzRClbH4obCRuAURGM/QGNN9G68bjR5xvZgZBY2ro33xcNTNJAJL 40PULazu/7YNQvvPEommrLYYtyhDfbp/IgLzBIOTzp6jwSAfSHAIivLG98wyH/amIbR1vH8yCql SBDdg/alHTtXGCU0q2i+pbsClfWDluhNWB7x4H4UG8+LC5nW6Jud2OXoy3VYZcluv7qanvjUJUg itVhIUBCc0CsZakZ3bAicLz9qx324CAigGnYNBC0XecSxh0jmsIopTMS5Vn3bSQjY8ffpVWI+zz +3K99Hgnhv6uX1VODIAC7V7dp13ZPw9pq1/w8tFFhXa83i42bKeqH4EMDwtArYia/r5UN+8Hxru W/jUOiqtMyP+/6yvN2WWEGIDkCP90nS/ITnMdwqplALX6quStpjIrtpEWHDcJvqGupxXlRnmxoS vxlRuEN9Hci+7AlgG121BQDKaTq/6gR9fZfOpOSa3pO37+JcWv3qNI9wGHa6QY8xtYDF3RWWaAs jOM6ahj8m58s1GqtrBlSzSyFs1JhsSdZoWOgQ1VHhOxANpkNHBqTIuyuEzo9Krvs74mm5LO5KEG jM8F3FHT/n5ck6W8SkIAJahMQV/vvVUYxBdGI6n1+VJuZqib6n1gmfGQWb74cml/ePNiQby0wb8 g+x3smGKALfVxkw== X-Developer-Key: i=a.hindborg@kernel.org; a=openpgp; fpr=3108C10F46872E248D1FB221376EB100563EF7A7 Add a method to `GenDisk` to obtain a reference to the associated `TagSet`. Signed-off-by: Andreas Hindborg --- rust/kernel/block/mq/gen_disk.rs | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs index 5367ca92b7aa..a50ba7b605d7 100644 --- a/rust/kernel/block/mq/gen_disk.rs +++ b/rust/kernel/block/mq/gen_disk.rs @@ -257,7 +257,7 @@ pub fn build( // `__blk_mq_alloc_disk` above. let mut disk = UniqueArc::new( GenDisk { - _tagset: tagset, + tag_set: tagset, gendisk, backref: Arc::pin_init( // INVARIANT: We break `GenDiskRef` invariant here, but we restore it below. @@ -341,7 +341,7 @@ pub(crate) const fn build_vtable() -> &'static bindings::block_device_operations /// `bindings::device_add_disk`. /// - `self.gendisk.queue.queuedata` is initialized by a call to `ForeignOwnable::into_foreign`. pub struct GenDisk { - _tagset: Arc>, + tag_set: Arc>, gendisk: *mut bindings::gendisk, backref: Arc>>, } @@ -363,6 +363,11 @@ pub fn queue_data(&self) -> ::Borrowed<'_> { // SAFETY: By type invariant, self is a valid gendisk. unsafe { T::QueueData::borrow((*(*self.gendisk).queue).queuedata) } } + + /// Get a reference to the `TagSet` used by this `GenDisk`. + pub fn tag_set(&self) -> &Arc> { + &self.tag_set + } } // SAFETY: `GenDisk` is an owned pointer to a `struct gendisk` and an `Arc` to a -- 2.51.2