From nobody Sun Feb 8 16:35:52 2026 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.5]) (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 F29CC29B8E0; Fri, 9 Jan 2026 06:25:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767939946; cv=none; b=rP5kcNrluCT1bLSVe6csrbFh6nWeVdqJuaSG5daf/WefOoGz1LQsvSJ6d1SQSfp/yAh5YIFIWTqe3a2E0I1h15QsqdLxjNGxtMxf1/B1WeEc+cUEOCtV6b6tHUS58uReTHXyDKSY7mCgHuaOEOflgQQa1I2Sio6Wz0K9SGi0tXA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767939946; c=relaxed/simple; bh=Xl+QaIttFkGp/1s3dd6W8hQ7lh9WDmSDLC0JFD9JCq4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dSYMDtgLMIYz/tb1/M3CXluLWo8sLoqmVArj9EW3hC9til5+vtqHPH7fOc1+i7U26zmHv2O02CoJlq5DXBZwrLr/9irG622yzG/4ch/s5fxL8sJU9hAAFU/8KlQeMwVmnb5yqvuzHXuHqc60lpA5LkLEOwUcXCoZAtsvvJrFsIE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=IrR/yjsw; arc=none smtp.client-ip=117.135.210.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="IrR/yjsw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=4q 7Sn9RU1aXiM9ptwL6dHdYjXW3fLAagaxXYGEC0XB0=; b=IrR/yjswoO1f26247S QIpzVz6oir83E7/K9vpIpEO8OAdJzn5NOQJJi0RBG9O0uR9XHg8lllIxoXPXPe+5 yTpTssHp/ooXp6lOY98r1FfnkZVETUtXDAH6IT6VcfcNJ2Ligeb3dLI3S+hTWjUK ArxLltzDMSAqwUyCipdxAVcOo= Received: from ubuntu24-z.. (unknown []) by gzga-smtp-mtada-g1-3 (Coremail) with SMTP id _____wD3P0wVn2Bpw14kFQ--.6242S2; Fri, 09 Jan 2026 14:24:22 +0800 (CST) From: ranxiaokai627@163.com To: surenb@google.com, vbabka@suse.cz, kent.overstreet@linux.dev, akpm@linux-foundation.org, david@kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, mhocko@suse.com, corbet@lwn.net Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, ran.xiaokai@zte.com.cn, ranxiaokai627@163.com Subject: [PATCH] alloc_tag: remove sysctl prefix from mem_profiling boot parameter Date: Fri, 9 Jan 2026 06:24:19 +0000 Message-ID: <20260109062419.157284-1-ranxiaokai627@163.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wD3P0wVn2Bpw14kFQ--.6242S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7WF45Cw1kKrWrurWkXryrJFb_yoW8Cr1DpF 4UWr1rGa95AryUCrn5J34IgryxWan7Ka17JanF9FW09wn0yF4ktrW8trWSvF1xXrZ7CF45 Xr4IvFWxXr10ywUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pin2-UUUUUU= X-CM-SenderInfo: xudq5x5drntxqwsxqiywtou0bp/xtbCxhZfq2lgnxbCJwAA3B Content-Type: text/plain; charset="utf-8" From: Ran Xiaokai Boot parameters prefixed with "sysctl." are processed separately during the final stage of system initialization via kernel_init()-> do_sysctl_args(). Since mem_profiling support should be parsed in early boot stage, it is unsuitable for centralized handling in do_sysctl_args(). Also, when CONFIG_MEM_ALLOC_PROFILING_DEBUG is enabled, the sysctl.vm.mem_profiling entry is not writable and will cause a warning. To prevent duplicate processing of sysctl.vm.mem_profiling, rename the boot parameter to "mem_profiling". Signed-off-by: Ran Xiaokai Acked-by: Suren Baghdasaryan Suggested-by: Suren Baghdasaryan