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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1782886308; 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=dRy6Fv69wFY6/TS8kxLq8V17UqY5UqwiNnjxmqBc98kZZYGtZusJyPaE5zaXfTr83VVPV7 lgChebnU1/F5pA/mV3qvqvAFyLHQK9XWZYlBh87qOn9Igf4EK0QeKUzUwV4nY2smGTjVqW Os8P27TOgYPMbiXjQk3DZRE1HZHa+v0= 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 v5 5/9] mm/page_owner: add missing newline to count_threshold format string Date: Wed, 1 Jul 2026 14:10:48 +0800 Message-ID: <20260701061101.344679-6-ye.liu@linux.dev> In-Reply-To: <20260701061101.344679-1-ye.liu@linux.dev> References: <20260701061101.344679-1-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: 1E1AEC0004 X-Rspam-User: X-Stat-Signature: rqy4ew6sxxtaxiso1ckpbko5kqbz5taf X-HE-Tag: 1782886309-381657 X-HE-Meta: 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 9I+yDal3 01Y8Fe2IYdYRhGLtHapYmcUvG84jbs5GgK5oR21M0OTDAzg/Q7o4BxeVdkjZNmSFJSRAbB0cxVMOFhTmSchv/cpfspucf+k81jgXVZsh3cSBFZ1c7nq95HicaqIccaAHBHJXizbwVS53hju1KaDz2ZlJu3WvUaVYO1HwFVizWNXoMFEQ3Xjk5j4OdblCxMF6yJc1daUxvyCcvyUL8yRoNfP7OlYmw0LrbG93ODS+zbgu5btd0jRas8llaW8GUIzgkX+4qG3lebhsVfeCVR8ZrJPxJhEb0Cyn54nAnEjE99Fmw4hE= 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