From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-171.mta0.migadu.com (out-171.mta0.migadu.com [91.218.175.171]) (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 3B8E436A37B for ; Fri, 26 Jun 2026 02:46:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782441980; cv=none; b=r8Mt2FzcnD92p56rC1OzsbO4Nc+Xl+w1IvhlahgJjjc8TOEFSgwd8mZsFBj1ISEYBF1nqyixxh54h/3MrE5I6bD5pFqIRL6R3G7rggm3CbFW5rMJLVnrBp6jRG28yjubKcf7cWmLkKj72nruHL6chakLElNRZ/gbVV8c0gbp9Kk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782441980; c=relaxed/simple; bh=wJRiveN/fBtKRC+sV0mrG8kT9ZtPTf7TH9SNJ3f1CqQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CITuZahKZm15KkNYTIjbEI7U2SJCcw23jB8qwMraL5BADXPcBgsiN19lr128l340hc7wY9W+E/GjRjhvuiPE1bINV1kf0w/wMW2D4sKDUxZBh9Km/XSnvjCpnmp6PFDhICd8KX4cwTG6eCCvELfZSTpYR/TC7k3SdPiCWx7BiC4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Lxtg31Uj; arc=none smtp.client-ip=91.218.175.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Lxtg31Uj" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1782441977; 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=NTLHd+1oM45Tb0ayVFKU2fogrT4VnS2NCHonHOYwY8w=; b=Lxtg31UjbEAyxqTKvCa/od30FlRYpDQFHMe8eif1RX6Nh7YN8g6vLgLlx50POHHgmi/EAZ KHw3/X5zMdy5ktJtAlR+zmEo97DwB3tnAD02q3WV7SNqMS5pA4dQZVAFty9HVxJqClXhRo kwjMGukrMXxCrFh+RiLAsO1Tj288yQ4= From: Ye Liu To: Andrew Morton , Vlastimil Babka Cc: Ye Liu , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/6] mm/page_owner: add missing newline to count_threshold format string Date: Fri, 26 Jun 2026 10:45:43 +0800 Message-ID: <20260626024550.25677-5-ye.liu@linux.dev> In-Reply-To: <20260626024550.25677-1-ye.liu@linux.dev> References: <20260626024550.25677-1-ye.liu@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT The DEFINE_SIMPLE_ATTRIBUTE format string for page_owner_threshold_fops is missing a trailing \n. simple_attr_read() uses scnprintf() with the format string, which does not append a newline, so reading /sys/kernel/debug/page_owner_stacks/count_threshold produces output without a terminating newline. Add the missing \n to match the standard debugfs attribute convention. Signed-off-by: Ye Liu --- mm/page_owner.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_owner.c b/mm/page_owner.c index 5d8773c90cd9..958151ccb587 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -981,7 +981,7 @@ static int page_owner_threshold_set(void *data, u64 val) } DEFINE_SIMPLE_ATTRIBUTE(page_owner_threshold_fops, &page_owner_threshold_get, - &page_owner_threshold_set, "%llu"); + &page_owner_threshold_set, "%llu\n"); static int __init pageowner_init(void) -- 2.43.0