From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-173.mta1.migadu.com (out-173.mta1.migadu.com [95.215.58.173]) (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 91F473BCD01 for ; Tue, 23 Jun 2026 06:53:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782197582; cv=none; b=T5xer18z3KWBznnywm/XwpmtZulYdbVxp9i9IL5yya4T6DsNF1DqhdBA42KO6F2HP8/Ydf8Uasb2owEdYzjg5b2y1ALB6o/RXuZKLCi9Hd8ZXod0x6JqiHQFcuHewfYxdoI3fEYwb0xJZGhaWK6OuP/woLiRsa9zF2P+g8fI2W4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782197582; c=relaxed/simple; bh=wJRiveN/fBtKRC+sV0mrG8kT9ZtPTf7TH9SNJ3f1CqQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=R+O0c8AbdBS7IwN4TKzLeX+Cg7Ow2wEF8dq2kpHxszi8YWJYpOKQmLAoVU7+3pB2mPuN6xhPFjp0F4ipS/jWAWTKxEqSUv2wbqJrn3hOuHdjNcAdaiYuH++1otjfUjS4b0Noffskx2RSyFnJwubGkEtfmgunhxPTe3RLvEp2C8A= 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=Ugukt4or; arc=none smtp.client-ip=95.215.58.173 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="Ugukt4or" 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=1782197578; 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=Ugukt4orz9/h6CKbhSueVDUtSTJA/a0Fzz+6i4dek5nPdOHcgiPahsP++ZG8XhzhVMaKic b9Zfx7ACe1rX8nH88g5a66QikcWvHToBFestsNxco291BJbJzOK6nfBxfIazhgiEOHJ91f z5OkN0zEjPBmZ1Pl1W+x8GJzmk4A5TQ= 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 4/6] mm/page_owner: add missing newline to count_threshold format string Date: Tue, 23 Jun 2026 14:52:29 +0800 Message-ID: <20260623065234.31866-5-ye.liu@linux.dev> In-Reply-To: <20260623065234.31866-1-ye.liu@linux.dev> References: <20260623065234.31866-1-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