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: 890580 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 407wg41GsWz9s1l for ; Sun, 25 Mar 2018 09:53:20 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=shealevy.com Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 407wg405TzzF1p4 for ; Sun, 25 Mar 2018 09:53:20 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=shealevy.com X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=shealevy.com (client-ip=216.40.44.98; helo=smtprelay.hostedemail.com; envelope-from=shea@shealevy.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=shealevy.com Received: from smtprelay.hostedemail.com (smtprelay0098.hostedemail.com [216.40.44.98]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 407p3F6hLLzF1j4 for ; Sun, 25 Mar 2018 04:55:21 +1100 (AEDT) Received: from smtprelay.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by smtpgrave06.hostedemail.com (Postfix) with ESMTP id 95E848005A60 for ; Sat, 24 Mar 2018 17:45:49 +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-Spam-Summary: 2, 0, 0, , d41d8cd98f00b204, , :::::::::::::::::::::::::::, RULES_HIT:41:355:379:541:800:960:966:973:988:989:1260:1345:1359:1437:1534:1541:1711:1730:1747:1777:1792:1978:1981:2194:2196:2199:2200:2393:2559:2562:3138:3139:3140:3141:3142:3352:3876:3877:4321:4385:4605:5007:6114:6261:6642:6737:10004:10848:11026:11473:11658:11914:12043:12048:12296:12438:12533:12555:12895:13069:13311:13357:14096:14181:14384:14394:14721:21080:21451:21627:30012:30054, 0, RBL:71.235.10.46:@shealevy.com:.lbl8.mailshell.net-62.4.0.191 64.201.201.201, CacheIP:none, Bayesian:0.5, 0.5, 0.5, Netcheck:none, DomainCache:0, MSF:not bulk, SPF:ff, MSBL:0, DNSBL:neutral, Custom_rules:0:0:0, LFtime:20, LUA_SUMMARY:none 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 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> X-Mailman-Approved-At: Sun, 25 Mar 2018 09:29:26 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Shea Levy Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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