From patchwork Thu Jul 11 12:59:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Valentin Schneider X-Patchwork-Id: 13730663 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 4D30E16D9AD for ; Thu, 11 Jul 2024 13:00:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720702858; cv=none; b=lM4iEiT1iWM6aQPX4MDgumvaLSgHrbENpKiFhLFy72AuSbCbkP1MimVtMWux43jgJDAr5TdRHMudZ7LTYXY5sbompV2Ih2jokLtpqiNAxt5aXCHCxDisxeoKTd3FoESEfmJKYUnnnIYVzeCOGuuKItc16XZt+EctIavCP7nEQYk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720702858; c=relaxed/simple; bh=03eOuIbpk2CL8gHcNkcMr6D2tKWHDvUL5fMCqSTDmZM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IN5yNVVTfSUFpewKsk/tkF46m3biF8O6Ckc/2HYs/4AjE7Otu4Z7Riuu3df6Q04mtC6XaWkK1VM8O2ZmpD4p9pUYZZlm/kXZNvrpy4ge7ChEsVyBXN/okXqCeBrMtXgjYqlU3HA0woQCE9hXOkqXIeC8rGTBRbHj586Rk7OrzhY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=fu/7SO3Y; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fu/7SO3Y" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720702856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mgv6m6VmpgYAIYyr1Uojk4UY9y2hZWycgx24o6Dhrv4=; b=fu/7SO3YUiqklrnbNmWeKVbC56Wdguoty48y9rOJ+y5jQKzprHRfwwM0eNdLRTQg7UxzjS lkVlc9XjWnlZFk+RhJBFR9RPBfbtx1mHEvXcjrlOtJrYMjA0EtBeM9869CeOEN+GTh6kYe sPj94jYT7YKdw39swgI/yBVaUqkq+gk= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-316-I0jpcKX5O0eRlw_1D8M9ZQ-1; Thu, 11 Jul 2024 09:00:49 -0400 X-MC-Unique: I0jpcKX5O0eRlw_1D8M9ZQ-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 15AAD19772C9; Thu, 11 Jul 2024 13:00:45 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.39.192.211]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 0DD7319560AA; Thu, 11 Jul 2024 13:00:36 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, rcu@vger.kernel.org Cc: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Phil Auld , Clark Williams , Tomas Glozar , "Paul E. McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Alexander Gordeev , Catalin Marinas , Arnd Bergmann , Guo Ren , Palmer Dabbelt , Andrew Morton , Oleg Nesterov , Jens Axboe Subject: [RFC PATCH v3 01/10] rcuwait: Split type definition to its own header Date: Thu, 11 Jul 2024 14:59:55 +0200 Message-ID: <20240711130004.2157737-2-vschneid@redhat.com> In-Reply-To: <20240711130004.2157737-1-vschneid@redhat.com> References: <20240711130004.2157737-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 A later commit will add a struct irq_work member to struct task_struct, which would require to include the definition of struct irq_work. Thanks to header dependency hell, incudling in results in defining inline helpers using not-yet-defined fields (mm_struct, task_struct, various task states...). Break off the definition of struct rcuwait into its own header file. Signed-off-by: Valentin Schneider --- include/linux/rcuwait.h | 9 ++------- include/linux/rcuwait_types.h | 16 ++++++++++++++++ 2 files changed, 18 insertions(+), 7 deletions(-) create mode 100644 include/linux/rcuwait_types.h diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h index 27343424225cf..1f1ca7d38cdf8 100644 --- a/include/linux/rcuwait.h +++ b/include/linux/rcuwait.h @@ -5,17 +5,12 @@ #include #include +#include + /* * rcuwait provides a way of blocking and waking up a single * task in an rcu-safe manner. - * - * The only time @task is non-nil is when a user is blocked (or - * checking if it needs to) on a condition, and reset as soon as we - * know that the condition has succeeded and are awoken. */ -struct rcuwait { - struct task_struct __rcu *task; -}; #define __RCUWAIT_INITIALIZER(name) \ { .task = NULL, } diff --git a/include/linux/rcuwait_types.h b/include/linux/rcuwait_types.h new file mode 100644 index 0000000000000..60a4385a2c368 --- /dev/null +++ b/include/linux/rcuwait_types.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_RCUWAIT_TYPES_H_ +#define _LINUX_RCUWAIT_TYPES_H_ + +#include + +/* + * The only time @task is non-nil is when a user is blocked (or + * checking if it needs to) on a condition, and reset as soon as we + * know that the condition has succeeded and are awoken. + */ +struct rcuwait { + struct task_struct __rcu *task; +}; + +#endif