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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1782869005; 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=hMPk4xo0goYwl32b+O7Fi24CGRO5SYSFgHPQLi10p/I=; b=Om7cdqVR2SQfzLtC/CUOMJu+oOYjf4Nyu27g3QsInJgvk7g2PvJA6l1ACJLmEtRw6F9wO3 33K8l0IQAXfbzRsVjizow4th4jumCuDkN6jBb/fKK8cjObrukLPcQpcGq4ng4TaVI4G8EO SlYAhsWLv5RFgwm5a86p7Uxg0rf1rj0= From: Ye Liu To: Andrew Morton , Vlastimil Babka Cc: Ye Liu , Zi Yan , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 5/7] mm/page_owner: add missing newline to count_threshold format string Date: Wed, 1 Jul 2026 09:22:31 +0800 Message-ID: <20260701012239.315262-6-ye.liu@linux.dev> In-Reply-To: <20260701012239.315262-1-ye.liu@linux.dev> References: <20260701012239.315262-1-ye.liu@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 318B040007 X-Rspam-User: X-Stat-Signature: ak4qcqg3ygphs5fhmirzraomehgrugqj X-HE-Tag: 1782869007-643344 X-HE-Meta: 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 TBTcdEyO ohiw/kKOlOx+A2U7l2RdXRhiWtEiztyglaGu+Ty5+r5m2kMFNqVayPvA8HZQ7smqHUltVIes7AEZlo1UCKvX2Sa7PgjlPyM3MWoFdreAXNlsdHOTcATr29JIhRE5X7pX57yuwB6ls9NFfmDgJ3tuxvi6pqFKSOKE4t2B3RfCZ6bIJw1NZduXsfRicpjikQvVWrhAjkOWo+wf4cx8d+QDOTZ4ayrgA9RqSH1VRl13MvXItM4z+3c2JA0g84tI1GBFAz/OyFIkHfubYR6Tb6jqDdWYlvFD9jUt1CPTcVBdK7rewFt0= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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 Reviewed-by: Zi Yan Reviewed-by: Vlastimil Babka (SUSE) --- 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 fe2bf2274d8a..7520718f63f1 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -974,7 +974,7 @@ 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