From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 70C082472BE for ; Wed, 28 May 2025 08:11:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748419884; cv=none; b=KpmrhY+o4oAtMDwcPzacqm5JH8e7TAebPEs4OKLEWZuEbPju4kDkvuRllviIKdivcQZz3Fen9wIzryUnf5xPQ/pWdp1U+IyK6nh4VX/PTqHdSOUTZWYRh8h7Y6SRbv43K3f5+UA1er4colXeAtmvwicH87TZ5b3hRXrLPxm6g6E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748419884; c=relaxed/simple; bh=MU+eHvbyChE4Bc8+8rbhPS5TvW+nIIPhEbR9gz4Z4iA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oFmZUykJExcnOS2lagUou6X7Fk7zfCr+AwfJ/MvX4Fcj/aJ82f7MiYjLWlbFmoDcx21twTPllRtsCDJ4OxE3Rv38zyiZgdgJF6449SnncxeytIcKbvo5pRI8NbwkOp50Ef7wY+t4x2CUcwBSr5bs85D/kidAC8VeU+a4EYmZsvU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AqXd5tKb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AqXd5tKb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D72F6C4CEEF; Wed, 28 May 2025 08:11:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748419883; bh=MU+eHvbyChE4Bc8+8rbhPS5TvW+nIIPhEbR9gz4Z4iA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AqXd5tKbMsv+WZzZmf+4QhrXyE1gpgwiVMNjSB7B7r1QdcVWmu9bwlDF0C/kFQ/FM +JVxVdxW32uST10rSIJYccp93pjEJ2KpWhhVHkhAIwnO1VqHZ0YqKzZE/wlZlrK0Xu LaSR2nElUP1YwUPGdRoZUYJptMpzg4Tc6KSyMx1xAHEo8EI8GOPEqiZeE4dI+xH3M2 QrJqzd8Z3FsZCtXaUmjaNZYDI/xlEy0zsicf5LYVHDC9h0vwGfZe4ktHkczxnpLPQS WJB3luy8cEdqxb3ngfJArM3xYI4z/EmwkDZhcCnIt2tp8GlIZq+GeT7lGHs7Tn9H7K 92mlgidEPBOyg== From: Ingo Molnar To: linux-kernel@vger.kernel.org Cc: Dietmar Eggemann , Linus Torvalds , Peter Zijlstra , Shrikanth Hegde , Thomas Gleixner , Valentin Schneider , Steven Rostedt , Mel Gorman , Vincent Guittot , Sebastian Andrzej Siewior , Ingo Molnar , Juri Lelli Subject: [PATCH 27/43] sched/smp: Use the SMP version of idle_thread_set_boot_cpu() Date: Wed, 28 May 2025 10:09:08 +0200 Message-ID: <20250528080924.2273858-28-mingo@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250528080924.2273858-1-mingo@kernel.org> References: <20250528080924.2273858-1-mingo@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Simplify the scheduler by making formerly SMP-only primitives and data structures unconditional. Signed-off-by: Ingo Molnar Cc: Dietmar Eggemann Cc: Juri Lelli Cc: Linus Torvalds Cc: Mel Gorman Cc: Peter Zijlstra Cc: Shrikanth Hegde Cc: Steven Rostedt Cc: Valentin Schneider Cc: Vincent Guittot --- kernel/sched/core.c | 2 -- kernel/smpboot.c | 4 ---- 2 files changed, 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ac933e6fc465..d2d3e5e337c7 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8577,9 +8577,7 @@ void __init sched_init(void) calc_load_update = jiffies + LOAD_FREQ; -#ifdef CONFIG_SMP idle_thread_set_boot_cpu(); -#endif balance_push_set(smp_processor_id(), false); init_sched_fair_class(); diff --git a/kernel/smpboot.c b/kernel/smpboot.c index 1992b62e980b..4503b60ce9bd 100644 --- a/kernel/smpboot.c +++ b/kernel/smpboot.c @@ -18,8 +18,6 @@ #include "smpboot.h" -#ifdef CONFIG_SMP - #ifdef CONFIG_GENERIC_SMP_IDLE_THREAD /* * For the hotplug case we keep the task structs around and reuse @@ -76,8 +74,6 @@ void __init idle_threads_init(void) } #endif -#endif /* #ifdef CONFIG_SMP */ - static LIST_HEAD(hotplug_threads); static DEFINE_MUTEX(smpboot_threads_lock); -- 2.45.2