From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 216FC46D547 for ; Fri, 14 Aug 2026 12:41:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786711290; cv=none; b=qwJj1BDO4F3SgIoeJZZMcHB6CGtlGz95pZs9wD+OU9/c0AIJvvIcqHyn1HCTsTGm/PQ75jv60W9A2pCadQGrsg4ihfapOrE3wajkbxmMqzlc9445hZu7QknyCrlTFhXHjJIkZlCr1O1g9iUEwpd9XaAXHJNXgO3D8sBcxNue2xo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786711290; c=relaxed/simple; bh=pRp8Xay4LOsxnW3T3FkqZwK0Lw3xbqy1/PeoWNnCBjs=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=X4qkHYXKhGtZABR/aAzJfCxnifGRCU7t44AhmhjvWJElO2V31eWWV+4GIr7buioM/B3vZVTWAS3IiQsGL5vXj+l/ywagbcc7hrTwZNvgsZ1gbRH7qHF6b/F9avYmmJC2PcuO9OmH+OkBJGYdRhYkZXolCQ2fNie0/r4fw3KbnqU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LiXPks3z; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LiXPks3z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46EA01F00ADF; Fri, 14 Aug 2026 12:41:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786711284; bh=iO9SbxqACJltPKSromtYYa9mBd4aG54z6rz/670OXAU=; h=Date:From:To:Cc:Subject:References; b=LiXPks3zwYTJIJw5FdVt82szQvEzSJys0MbTEoveda0fyU1M5xpVI8M+7gMXO/JIG t1o1Pq5fA9YYj9oGB198JfIYSebTyxAvaI471csJoozWPmvvNv3QudSYBbfz1DxcsI +ifnDEtytm1jf2Mxw84u1AjpnDFNHB+FoZTtTbC7YEhAfLEJWHscofY/zFZIIHepIx afCveWeaQ1XQQLP1FccB354GBgZbhys64kSGP5R6vuVvIxaKevbXKhggkx7X72tL/0 8LaARPL+cxrl+cdkb3tN9+Ynr0+zuKcslmFO+7fLJJsDjnrv9ducs7Rfvg+W+6SRPk 5KEn5K17Jvl1A== Received: from rostedt by gandalf with local (Exim 4.99.4) (envelope-from ) id 1wurEE-00000003znn-3685; Fri, 14 Aug 2026 08:41:42 -0400 Message-ID: <20260814124142.613014512@kernel.org> User-Agent: quilt/0.69 Date: Fri, 14 Aug 2026 08:41:31 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Vincent Donnefort Subject: [for-next][PATCH 8/9] ring-buffer: Remove trace_buffer::cpus References: <20260814124123.133362396@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 From: Vincent Donnefort The 'cpus' field in struct trace_buffer became useless in commit 8e7b58c27b3c ("ring-buffer: Just update the subbuffers when changing their allocation order"). Remove it Link: https://patch.msgid.link/20260813131152.3589632-9-vdonnefort@google.com Fixes: 8e7b58c27b3c ("ring-buffer: Just update the subbuffers when changing their allocation order") Signed-off-by: Vincent Donnefort Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 2204a121ef7e..f75aafc755bd 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -572,7 +572,6 @@ struct ring_buffer_per_cpu { struct trace_buffer { unsigned flags; - int cpus; atomic_t record_disabled; atomic_t resizing; cpumask_var_t cpumask; @@ -2796,7 +2795,6 @@ static struct trace_buffer *alloc_buffer(unsigned long size, unsigned flags, init_irq_work(&buffer->irq_work.work, rb_wake_up_waiters); init_waitqueue_head(&buffer->irq_work.waiters); - buffer->cpus = nr_cpu_ids; bsize = sizeof(void *) * nr_cpu_ids; buffer->buffers = kzalloc(ALIGN(bsize, cache_line_size()), -- 2.53.0