From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 248F6C7619A for ; Sat, 8 Apr 2023 07:54:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230006AbjDHHyM (ORCPT ); Sat, 8 Apr 2023 03:54:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229960AbjDHHyG (ORCPT ); Sat, 8 Apr 2023 03:54:06 -0400 Received: from mail-oi1-x236.google.com (mail-oi1-x236.google.com [IPv6:2607:f8b0:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0326EFBD; Sat, 8 Apr 2023 00:54:04 -0700 (PDT) Received: by mail-oi1-x236.google.com with SMTP id f14so18830902oiw.10; Sat, 08 Apr 2023 00:54:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1680940444; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ht+Snw7oqKAYwWbuQnCqRHObcbb/KZ3skYYXvWfrZk8=; b=D5nB5m8Hn67ITtdKlaB0dHuMUxSNyMOaAEpOmuO86juhbgRRRD+MV0Ot+fB9CFEamj v3NglJw1JZGFQ4oW6cHzBe9GPotPulpRlMBnEub+FEYvpjKUctc14IDvwJ6I471KOQF2 Iyer6YfRpXXesByamiBfqbv1TGrtJBKyYnM+8SUXHsjhNenIUymUrwiCwFIaZ98Wwfnv 0byZ9JHBc2oTqFuGyGBJC59LFmfVAuoHln1Br/i2HSKf2TIZxfQcTtqlxwnve7OXNA3m KTkf6b3u4OXLKMjmCTvLuCyfekFRNCL46A4y0sxWksGjVliXtbtQasRiEm/3K3f65ivI vfKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680940444; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ht+Snw7oqKAYwWbuQnCqRHObcbb/KZ3skYYXvWfrZk8=; b=A39VdogPMfF1JK8ybqyynktEuQ5bV5kInFPPvN96wBZH0hRMmpOqa7XfMEcSSZ851D XSo9FkPsr7W557nWyoVqV1OrvEwOl6eV9E0xl0o4+12QmEMME/5Vr2WomgQ6IckdHpob 1v+dlMbkYnxDWml93jfjJX6ZgInYiZjBp2zaVpO9gaPlpNwZL0h1pqa/bldOTO8HJ0Rg C0MWuO/obGcYDt9E6KB0ZWDC1ifo0xm+mFUDyS7hRcl0IXpNE9TmIHUjtfIse3jKCEtH U5+ViR/jm6p362TmFOGjYBFI9KBp614+NfIxU1cut6Dft3GUESc3hyzbXyqFZRhqI/BS HMnA== X-Gm-Message-State: AAQBX9dDgkE4KTWlPLDg7e5K266iIo8TyF/jtmpQLyUy/8YahnmmO4BL EDR2FmJ6J2JugVJDqbZAykEsNtQ8azkjHg== X-Google-Smtp-Source: AKy350bJSJD8sgzjt0jhNpYQPKNwsgl/1ntfYTBRuRMzpEGRQqwMkM7A3SsWaM+vrK0C18PJrF73/g== X-Received: by 2002:aca:2304:0:b0:384:1221:9a24 with SMTP id e4-20020aca2304000000b0038412219a24mr1826021oie.27.1680940444328; Sat, 08 Apr 2023 00:54:04 -0700 (PDT) Received: from wedsonaf-dev.home.lan ([189.124.190.154]) by smtp.googlemail.com with ESMTPSA id o6-20020a4a9586000000b0051ffe0fe11bsm2435175ooi.6.2023.04.08.00.54.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Apr 2023 00:54:04 -0700 (PDT) From: Wedson Almeida Filho To: rust-for-linux@vger.kernel.org Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , linux-kernel@vger.kernel.org, Wedson Almeida Filho , Peter Zijlstra , Ingo Molnar , Will Deacon , Waiman Long Subject: [PATCH v3 04/13] locking/spinlock: introduce spin_lock_init_with_key Date: Sat, 8 Apr 2023 04:53:31 -0300 Message-Id: <20230408075340.25237-4-wedsonaf@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230408075340.25237-1-wedsonaf@gmail.com> References: <20230408075340.25237-1-wedsonaf@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wedson Almeida Filho Rust cannot call C macros, so it has its own macro to create a new lock class when a spin lock is initialised. This new function allows Rust code to pass the lock class it generates to the C implementation. Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Will Deacon Cc: Waiman Long Signed-off-by: Wedson Almeida Filho --- v1 -> v2: No changes v2 -> v3: No changes include/linux/spinlock.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index be48f1cb1878..cdc92d095133 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -327,12 +327,17 @@ static __always_inline raw_spinlock_t *spinlock_check(spinlock_t *lock) #ifdef CONFIG_DEBUG_SPINLOCK +static inline void spin_lock_init_with_key(spinlock_t *lock, const char *name, + struct lock_class_key *key) +{ + __raw_spin_lock_init(spinlock_check(lock), name, key, LD_WAIT_CONFIG); +} + # define spin_lock_init(lock) \ do { \ static struct lock_class_key __key; \ \ - __raw_spin_lock_init(spinlock_check(lock), \ - #lock, &__key, LD_WAIT_CONFIG); \ + spin_lock_init_with_key(lock, #lock, &__key); \ } while (0) #else -- 2.34.1