From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f181.google.com (mail-lj1-f181.google.com [209.85.208.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 01FC1847B for ; Mon, 1 Jul 2024 01:34:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719797666; cv=none; b=gfgXsE3FfFDWxO7cm9A126hNR9c4u9b49xJzo+Ps6VyAh/t+wdGwM4QGuqDaBarBA6rbO3jDURnHvGU/3ZEgN08bJg3bnFIF619HLtkMOLZXmbPZCwBzNlssDsjy+dhoLwe9jsBiCsuLKpRYrYqpzNExsFt1KwYN2G0op0xqDdU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719797666; c=relaxed/simple; bh=up6vic00r/EC983lCSpeqOy8ZwRpFze7coNStEEisAg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=ssYhVPSzyvhtajHXpSocoA6Io9VxcuCQAD9PRrkNLuBuu0TkmLh+98qR6In8dH1iaUKHiE0iQbCDEocsCSs8PIX9pxRYoc7hcqVM0L70yc7r1A8ZrsDzoTwDjfMkzOMZ4dKWSVE/sLE1Bv1fSed/BIcWV7ZnKNf5+SneYgormP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=jDFUBxbG; arc=none smtp.client-ip=209.85.208.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="jDFUBxbG" Received: by mail-lj1-f181.google.com with SMTP id 38308e7fff4ca-2ec4eefbaf1so24765161fa.1 for ; Sun, 30 Jun 2024 18:34:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1719797662; x=1720402462; darn=vger.kernel.org; h=references:in-reply-to:message-id:date:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=qATZEMh/1klgF7W20a4dIuUsabGQyRb4CXLrEd1f3Bk=; b=jDFUBxbG5/w0640cnsfljfg7deGZDmWaOqXg86yxaZEBBtchNN1SHZMMcbwNH5uZsA IxOpqSQ8I1VXAOi7XERIe5gJg+ffr4B0zYjqom55wUq54c5Dkafl7t6vEJdeIdgLpvOD Ww7znhg9ZZsGR56FuSPP5fYiYh1c4OwpBQ/jXHMLfVBB/v8oai4sSrjeCFYkoBKNQizR xs1rNhu2VpG+SFsHqoKsen7P76FLHbfaHsvDEmhv8ikOtrV3vitGCALEHq4BohL1Z6fS UVkNaf6IXYKBqcJsFnQWCQY/pQc1wzCiJ0LTTckN0Gq8T/NYkyeE/c67vfdH2BvhSwRI Ytlg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719797662; x=1720402462; h=references:in-reply-to:message-id:date:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=qATZEMh/1klgF7W20a4dIuUsabGQyRb4CXLrEd1f3Bk=; b=riPZ+GZFcxOG7LWMih/Bu2LmBEVReEeTTVZ6LUn5RhjQK/XV2biXrdnhn+Cu6Xj2Cy v15MfC2WJIhMM7U+GhYn/cvF7j7EaGja0k1CErcTmreGAqHlC+UIGlLwCA/+xmW+M+LY 2ticg/Ub3wzfwYFFZazm9QIY5+Bw7kDjBqrn0Av/Lw57yqLchIUhpNdX3dx/zKHe89ts eH7BtdlbQuUEdE5upru/BNxp8+oAuBW+BRwahuvSh8mCETvaBW7G0gUd62KcHy/kCXEh wjcJiZrYtb90YzAACyvxLU4jbQMlJ8Qq8HVtVtTQ3BoeMvVtyH6xhnVRDZqR8VKphBat OsJg== X-Gm-Message-State: AOJu0YzrwmDpPxKo4j5FVTMXmDRX21qXLUQ5AacoOXueRVJfXHxEgOxK RSa4yJ4uTXwy7NK1vKGS6ume6f5c9GbOVLKF1co8JFAMo2hggGBX X-Google-Smtp-Source: AGHT+IFnHIA0qyXjT34qzJBjabQNmeA/pWdMGS+ibJ9rs+Sfp4za1/I/pamjX3x5a/AiuSV4T4GE9w== X-Received: by 2002:a05:651c:1245:b0:2ec:b376:3a41 with SMTP id 38308e7fff4ca-2ee5e6c9d00mr23666631fa.51.1719797661939; Sun, 30 Jun 2024 18:34:21 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-58612c835adsm3814440a12.17.2024.06.30.18.34.20 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sun, 30 Jun 2024 18:34:20 -0700 (PDT) From: Wei Yang To: akpm@linux-foundation.org, brauner@kernel.org, oleg@redhat.com, mjguzik@gmail.com, tandersen@netflix.com Cc: linux-kernel@vger.kernel.org, Wei Yang Subject: [PATCH v2 2/2] kernel/fork.c: put set_max_threads()/task_struct_whitelist() in __init section Date: Mon, 1 Jul 2024 01:34:10 +0000 Message-Id: <20240701013410.17260-2-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20240701013410.17260-1-richard.weiyang@gmail.com> References: <20240701013410.17260-1-richard.weiyang@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Function set_max_threads()/task_struct_whitelist() is only used by fork_init() during bootup. Let's add __init tag to them. Signed-off-by: Wei Yang Suggested-by: Oleg Nesterov --- kernel/fork.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index eb2b5f96aa61..b42334b53bd6 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -997,7 +997,7 @@ void __init __weak arch_task_cache_init(void) { } /* * set_max_threads */ -static void set_max_threads(unsigned int max_threads_suggested) +static void __init set_max_threads(unsigned int max_threads_suggested) { u64 threads; unsigned long nr_pages = PHYS_PFN(memblock_phys_mem_size() - memblock_reserved_size()); @@ -1023,7 +1023,7 @@ static void set_max_threads(unsigned int max_threads_suggested) int arch_task_struct_size __read_mostly; #endif -static void task_struct_whitelist(unsigned long *offset, unsigned long *size) +static void __init task_struct_whitelist(unsigned long *offset, unsigned long *size) { /* Fetch thread_struct whitelist for the architecture. */ arch_thread_struct_whitelist(offset, size); -- 2.34.1