From patchwork Sat Mar 24 17:44:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shea Levy X-Patchwork-Id: 10306187 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6015660385 for ; Sat, 24 Mar 2018 17:55:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45B5429208 for ; Sat, 24 Mar 2018 17:55:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A5002930F; Sat, 24 Mar 2018 17:55:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.4 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, SUSPICIOUS_RECIPS autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DBDBC29208 for ; Sat, 24 Mar 2018 17:55:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752736AbeCXRzX (ORCPT ); Sat, 24 Mar 2018 13:55:23 -0400 Received: from smtprelay0034.hostedemail.com ([216.40.44.34]:39156 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752569AbeCXRzW (ORCPT ); Sat, 24 Mar 2018 13:55:22 -0400 Received: from smtprelay.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by smtpgrave02.hostedemail.com (Postfix) with ESMTP id B14101800EB03; Sat, 24 Mar 2018 17:45:42 +0000 (UTC) Received: from filter.hostedemail.com (clb03-v110.bra.tucows.net [216.40.38.60]) by smtprelay02.hostedemail.com (Postfix) with ESMTP id 6C44E52C5; Sat, 24 Mar 2018 17:45:41 +0000 (UTC) X-Session-Marker: 7368656140736865616C6576792E636F6D X-HE-Tag: cows11_4ea06453d7f19 X-Filterd-Recvd-Size: 2112 Received: from localhost (c-71-235-10-46.hsd1.nh.comcast.net [71.235.10.46]) (Authenticated sender: shea@shealevy.com) by omf01.hostedemail.com (Postfix) with ESMTPA; Sat, 24 Mar 2018 17:45:40 +0000 (UTC) From: Shea Levy To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-c6x-dev@linux-c6x.org, uclinux-h8-devel@lists.sourceforge.jp, linux-m68k@lists.linux-m68k.org, nios2-dev@lists.rocketboards.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net Cc: Shea Levy Subject: [PATCH 01/16] initrd: Add generic code path for common initrd unloading logic. Date: Sat, 24 Mar 2018 13:44:43 -0400 Message-Id: <20180324174458.26423-2-shea@shealevy.com> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180324174458.26423-1-shea@shealevy.com> References: <20180324174458.26423-1-shea@shealevy.com> Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Shea Levy --- init/initramfs.c | 7 +++++++ usr/Kconfig | 4 ++++ 2 files changed, 11 insertions(+) diff --git a/init/initramfs.c b/init/initramfs.c index 7e99a0038942..de5ce873eb5a 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -526,6 +526,13 @@ extern unsigned long __initramfs_size; #include #include +#ifdef CONFIG_INITRAMFS_GENERIC_UNLOAD +void free_initrd_mem(unsigned long start, unsigned long end) +{ + free_reserved_area((void *)start, (void *)end, -1, "initrd"); +} +#endif + static void __init free_initrd(void) { #ifdef CONFIG_KEXEC_CORE diff --git a/usr/Kconfig b/usr/Kconfig index 43658b8a975e..fd79d4d6fa26 100644 --- a/usr/Kconfig +++ b/usr/Kconfig @@ -233,3 +233,7 @@ config INITRAMFS_COMPRESSION default ".lzma" if RD_LZMA default ".bz2" if RD_BZIP2 default "" + +# Arches can select this for a generic initrd unloading codepath +config INITRAMFS_GENERIC_UNLOAD + bool