From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f181.google.com (mail-qt1-f181.google.com [209.85.160.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 90F2F3009CC for ; Sun, 11 Jan 2026 12:02:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768132959; cv=none; b=G+ngBRuQGmdPn2NVlVYkfDPrXgQ17R9O65SJ05mT4bdqS60Pxp/9CTbX/8vX/A7lLorUaydr7Ks3bC1r5IeIMIuawa1ZUNNY9EFX+7DMnvr4kv1K9ghnbtdoeZ07yUPs7EA/mNAeAkKtr5fiHH0OCbzE0TuyvYq2964ZPhyad+0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768132959; c=relaxed/simple; bh=ADgAWXBNQrR6xstXqyb2dogn9BYOZTjvarvLcWSaQ9M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KD5cD/4SmBDkt4NqWBP9xDq2tYKBRD3h3FrK5UYMmjYwOaQaEKjMeyMdi+ntan97HtgqcPLqd21465HFveWNKe5sydIEPZbOrN+aKU714x5nkC1Tff27KQslq1z78Fpr7gz80xNGq8YLN8ymAW2TiVeDtMs2Ee+HZ71lKOkgj8o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=e8gAX28m; arc=none smtp.client-ip=209.85.160.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="e8gAX28m" Received: by mail-qt1-f181.google.com with SMTP id d75a77b69052e-4ffbc2b861eso46641651cf.1 for ; Sun, 11 Jan 2026 04:02:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768132956; x=1768737756; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:feedback-id:from:to:cc:subject :date:message-id:reply-to; bh=kepbmbzgnhlCuVsncj/cE6YeF6NNCF3uy5a/64b27fk=; b=e8gAX28mAReKQrSu5m9wd0RVWq1lUJKkFn7J1ZdR7FdBw4hrkjTlyMtvxnHqfa89NT Rk+p9qZToEEMeS5szB1GBjWHSPSNKFeUJ4FDJ55+8DjT55UTU6ldpC8h8ZoMQ/CbSMUs i+YvEv5AYy89z1DdhiVPE1m8PwWVJDHGB0gAHlba9EjAkI8oxIo1UOfPOyazi7wCwSzU oG8qocgcojin8HYOYvbpd9LEM2V7dp9dHnMBToNCE3j4qwqCDTCFxzmCJDQQF5FdosWO eTNGiN7091dhrknXgwd3w+zx2xzytVF7YxRQHxQ2kQd4jo7ebOXymYmYvZg56KTfkSkw hUwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768132956; x=1768737756; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:feedback-id:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=kepbmbzgnhlCuVsncj/cE6YeF6NNCF3uy5a/64b27fk=; b=fKvFJeLop2IrMXCllvvhT4CyU8+oewHno35zgbRH8vfzXU3yxoXp+tmk8o7j68SXKT uWPOXGLlWIXQqYCFLBOFe9j5rn9QL1C5S1UcAW+hHpIOTTYRqVhrQGGqdYjrcmwOkN4y L60UKh509I0GNwK6hHG3nHG2DIqEY2L5kiTNhxsbz1BedUSFGUk6e99IMoBFTj3Z4tpN TaFhdjVZ4tEPz4FkugQkFMNQeNAO45E8+zdgeu5P8XGrfDoX1KvsCfC3IgXWxf0guP5w 2i5TqMxOAYtlXV5s5svm3sdnIxNYAsmLzZsT5UeWdhpXyoytPp9x+oTZiqHeBjJXMZOB 1HnQ== X-Forwarded-Encrypted: i=1; AJvYcCU+WUHfSnuUkq3QsIQsXBkn31I7Ba+jPxkY6Z+as1zCWU2DhV2iRFCwO70wWjP0D5g7S6wDnKZb1/D1mtQ=@vger.kernel.org X-Gm-Message-State: AOJu0YzQkHgsjhKPZZDMqP70+IwouTpGU4SPV1BY18cPrOzezlGz+Ljt 1ILjQS9v4gWtrSkDvRPPtyWo/muS6E5UV9+534pcyiFTRR3KN4YUR2u7 X-Gm-Gg: AY/fxX7D9s+y5mPHeixaDUK9P0OFueS5qNrbD/o3Ng3XOUltWO9Ack1fddjHPhESwsM TgDSYkSH50hruCMKDFHhlOW5eh1s2LzmQqoUCTTD9j1FIOzZgtWGC90YzlaDTetkHswo0Jlo8ig rL8f2Llre77xTsBqOtpx1inLbPyOIjps9iZ82eIcV3Nq4gOLXR3hVQBmPpausDVnV/89dNmjvkt 5jOxVf7MIQ5aqy2HxZYM+O8pAVD0wv5fD2OFm7Y9NRVVsDuF4qG1BoIE1qSg7DH0CJ9BYid4uWp TVcTphX9i2JdTSoNlLkE48GZ42MGTpUP0vW4Fq4xERDA3amP14F9+43ArcxTFWiP1PPW/HBZ6Vo mEdmMfHFKpGQ83YRNCgPyKD7APIsscRvuR+puX1mH4ZKURaw/RzqvddbLMVrNYg26ETqOuuEa5A Xpjlvwi+OHK1BeCGesu8tc8TlM77JSRmXDwQWpNKvWE4YBgQ+gzzyn8+pvrjbYMyb5FNtJXoVYd 9dVhfROn0nl1YLTzeVJYZA6QQ== X-Google-Smtp-Source: AGHT+IG7D2QgSPdleUDhBwx/0CpGLf/zUVmvO9ZqpkCcsjir3tBaxHgBdVlOmCfjy88a51v+W5939g== X-Received: by 2002:ac8:7fce:0:b0:4f1:dddb:db6c with SMTP id d75a77b69052e-4ffb48bac03mr173615151cf.17.1768132956409; Sun, 11 Jan 2026 04:02:36 -0800 (PST) Received: from fauth-a2-smtp.messagingengine.com (fauth-a2-smtp.messagingengine.com. [103.168.172.201]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4ffa8e4e258sm104001961cf.26.2026.01.11.04.02.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Jan 2026 04:02:35 -0800 (PST) Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfauth.phl.internal (Postfix) with ESMTP id 738BFF40068; Sun, 11 Jan 2026 07:02:35 -0500 (EST) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-04.internal (MEProxy); Sun, 11 Jan 2026 07:02:35 -0500 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgdduudeghedvucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepuehoqhhunhcu hfgvnhhguceosghoqhhunhdrfhgvnhhgsehgmhgrihhlrdgtohhmqeenucggtffrrghtth gvrhhnpedvveekvddtffelffelfedvudefffeuheejgeeivedufffgledvgeduveffueeh leenucffohhmrghinhepmhhsghhiugdrlhhinhhknecuvehluhhsthgvrhfuihiivgepud enucfrrghrrghmpehmrghilhhfrhhomhepsghoqhhunhdomhgvshhmthhprghuthhhphgv rhhsohhnrghlihhthidqieelvdeghedtieegqddujeejkeehheehvddqsghoqhhunhdrfh gvnhhgpeepghhmrghilhdrtghomhesfhhigihmvgdrnhgrmhgvpdhnsggprhgtphhtthho peduhedpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtohepphgvthgvrhiisehinhhfrh gruggvrggurdhorhhgpdhrtghpthhtohepmhhinhhgoheskhgvrhhnvghlrdhorhhgpdhr tghpthhtoheprhhushhtqdhfohhrqdhlihhnuhigsehvghgvrhdrkhgvrhhnvghlrdhorh hgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdho rhhgpdhrtghpthhtohepfihilhhlsehkvghrnhgvlhdrohhrghdprhgtphhtthhopehmrg hrkhdrrhhuthhlrghnugesrghrmhdrtghomhdprhgtphhtthhopehtghhlgieslhhinhhu thhrohhnihigrdguvgdprhgtphhtthhopehojhgvuggrsehkvghrnhgvlhdrohhrghdprh gtphhtthhopehgrghrhiesghgrrhihghhuohdrnhgvth X-ME-Proxy: Feedback-ID: iad51458e:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sun, 11 Jan 2026 07:02:34 -0500 (EST) From: Boqun Feng To: "Peter Zijlstra" , "Ingo Molnar" Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, "Will Deacon" , "Mark Rutland" , "Thomas Gleixner" , "Miguel Ojeda" , "Gary Guo" , "Alice Ryhl" , "Andreas Hindborg" , "Benno Lossin" , "Danilo Krummrich" , FUJITA Tomonori , Boqun Feng Subject: [PATCH 09/36] rust: helpers: Add i8/i16 atomic xchg_release helpers Date: Sun, 11 Jan 2026 20:01:42 +0800 Message-ID: <20260111120209.6133-7-boqun.feng@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260111120209.6133-1-boqun.feng@gmail.com> References: <20260111115808.5702-1-boqun.feng@gmail.com> <20260111120209.6133-1-boqun.feng@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: FUJITA Tomonori Add i8/i16 atomic xchg_release helpers that call xchg_release() macro implementing atomic xchg_release using architecture-specific instructions. [boqun: Use xchg_release() instead of raw_xchg_release()] Reviewed-by: Alice Ryhl Signed-off-by: FUJITA Tomonori Reviewed-by: Gary Guo Signed-off-by: Boqun Feng Link: https://patch.msgid.link/20251223062140.938325-4-fujita.tomonori@gmail.com --- rust/helpers/atomic_ext.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/rust/helpers/atomic_ext.c b/rust/helpers/atomic_ext.c index 177bb3603e5f..2b976a7ad3d7 100644 --- a/rust/helpers/atomic_ext.c +++ b/rust/helpers/atomic_ext.c @@ -70,3 +70,13 @@ __rust_helper s16 rust_helper_atomic_i16_xchg_acquire(s16 *ptr, s16 new) { return xchg_acquire(ptr, new); } + +__rust_helper s8 rust_helper_atomic_i8_xchg_release(s8 *ptr, s8 new) +{ + return xchg_release(ptr, new); +} + +__rust_helper s16 rust_helper_atomic_i16_xchg_release(s16 *ptr, s16 new) +{ + return xchg_release(ptr, new); +} -- 2.51.0