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[103.168.172.201]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4bda943b56csm26678131cf.39.2025.09.19.02.12.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Sep 2025 02:12:53 -0700 (PDT) Received: from phl-compute-05.internal (phl-compute-05.internal [10.202.2.45]) by mailfauth.phl.internal (Postfix) with ESMTP id DACEDF40066; Fri, 19 Sep 2025 05:12:52 -0400 (EDT) Received: from phl-mailfrontend-01 ([10.202.2.162]) by phl-compute-05.internal (MEProxy); Fri, 19 Sep 2025 05:12:52 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdeggdegkeekvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjug hrpefhvfevufffkffoggfgsedtkeertdertddtnecuhfhrohhmpeeuohhquhhnucfhvghn ghcuoegsohhquhhnrdhfvghnghesghhmrghilhdrtghomheqnecuggftrfgrthhtvghrnh epgeegueekgefhvedukedtveejhefhkeffveeufeduiedvleetledtkeehjefgieevnecu ffhomhgrihhnpehkvghrnhgvlhdrohhrghenucevlhhushhtvghrufhiiigvpedtnecurf grrhgrmhepmhgrihhlfhhrohhmpegsohhquhhnodhmvghsmhhtphgruhhthhhpvghrshho nhgrlhhithihqdeiledvgeehtdeigedqudejjeekheehhedvqdgsohhquhhnrdhfvghngh eppehgmhgrihhlrdgtohhmsehfihigmhgvrdhnrghmvgdpnhgspghrtghpthhtohepudel pdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehpvghtvghriiesnhhfrhgruggvrg gurdhorhhgpdhrtghpthhtohepmhhinhhgoheskhgvrhhnvghlrdhorhhgpdhrtghpthht ohepthhglhigsehlihhnuhhtrhhonhhigidruggvpdhrtghpthhtoheprhhushhtqdhfoh hrqdhlihhnuhigsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhu gidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhkmh hmsehlihhsthhsrdhlihhnuhigrdguvghvpdhrtghpthhtohepfihilhhlsehkvghrnhgv lhdrohhrghdprhgtphhtthhopehpvghtvghriiesihhnfhhrrgguvggrugdrohhrghdprh gtphhtthhopehlohhnghhmrghnsehrvgguhhgrthdrtghomh X-ME-Proxy: Feedback-ID: iad51458e:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 19 Sep 2025 05:12:51 -0400 (EDT) From: Boqun Feng To: "Peter Zijlstra" , "Ingo Molnar" , "Thomas Gleixner" Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, lkmm@lists.linux.dev, "Will Deacon" , "Peter Zijlstra" , Waiman Long , "Miguel Ojeda" , alex.gaynor@gmail.com, "Gary Guo" , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , "Benno Lossin" , "Alice Ryhl" , "Trevor Gross" , "Danilo Krummrich" , "Andreas Hindborg" , Boqun Feng Subject: [GIT PULL] [PATCH 0/4] Rust locking changes for v6.18 Date: Fri, 19 Sep 2025 11:12:37 +0200 Message-ID: <20250919091241.32138-1-boqun.feng@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Peter & Ingo, Please pull this (mostly) Rust locking changes to tip. It's a bit late than usual because I was at Kangrejos conference this week, however the changes are relatively small and simple, so I think it's Ok for v6.18. I also try using "git notes" for submission links as Thomas suggests, let see how it goes ;-) The following changes since commit 17d9f8eaa87d40a2ff66598875a43363e37a909b: MAINTAINERS: update atomic infrastructure entry to include Rust (2025-09-15 09:38:36 +0200) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git/ tags/rust-locking.2025.09.19a for you to fetch changes up to 9622209360c25d78a81048a9db72f1efef7fbc58: rust: lock: Add a Pin<&mut T> accessor (2025-09-15 22:28:35 -0400) Regards, Boqun ---------------------------------------------------------------- Locking changes for v6.18: - Fix a data-race in do_raw_write_lock reported by KCSAN Rust locking changes for v6.18 - Make `data` in `Lock` structurally pinned. Previously the `data` field of a `Lock` is not structurally pinned, and it's impossible to initialize the `data` field with a pin-initializer, hence e.g. a `Lock` where T is a pin-initialized type is not supported. This encourages workarounds like `Lock>`, which is more complicated and less efficient. Therefore make the `data` field in `Lock` structurally pinned to support pin-initialized types in a `Lock`. Since the `data` field is structurally pinned, make `Guard` only `DerefMut` is T is Unpin, otherwise `Guard::as_mut()` is added to provide a `Pin<&mut T>`. This is different than normal Rust standand library locks. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEj5IosQTPz8XU1wRHSXnow7UH+rgFAmjNGoEACgkQSXnow7UH +riU8ggAnRUTBam8NTmHJpZfVbbNSfx1ndaARxd9Wb/MLEh8OHYKbVRPJwvWGge+ dafO0VYULku7ho1SeIlLXp4Bbjy3YC6o/J6xOpr9xMmysUky7RHi+Ys0y9gKaSmW daPurQEOS8TBUWu5yVxNAfWoRgPEiPULovbzgANKKAV7QsljyoEg7mQCPxLftPze Hr22HxU+lr6SDH5Efc8ihGqXJAvwunk+0mkJymZbjWo3ZF3cuhXlTMcIlu1SK14a R1VQu5UoX8S5y0T0gkJ84UJ11e0wrSZyT0EqmHWSpVBnyGgWk8H1u284hDiGG2iG FvwoSQ9iVuxLhxjhPUSOjq30DzmFfg== =MZj4 -----END PGP SIGNATURE----- ---------------------------------------------------------------- Alexander Sverdlin (1): locking/spinlock/debug: Fix data-race in do_raw_write_lock Daniel Almeida (3): rust: lock: guard: Add T: Unpin bound to DerefMut rust: lock: Pin the inner data rust: lock: Add a Pin<&mut T> accessor kernel/locking/spinlock_debug.c | 4 ++-- rust/kernel/sync/lock.rs | 41 +++++++++++++++++++++++++++++++++++++---- rust/kernel/sync/lock/global.rs | 5 ++++- 3 files changed, 43 insertions(+), 7 deletions(-)