From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AC3ECA0EC5 for ; Mon, 11 Sep 2023 21:18:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343521AbjIKVLl (ORCPT ); Mon, 11 Sep 2023 17:11:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240634AbjIKOte (ORCPT ); Mon, 11 Sep 2023 10:49:34 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86F71125 for ; Mon, 11 Sep 2023 07:49:30 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB605C433C8; Mon, 11 Sep 2023 14:49:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694443770; bh=5371y4qeFH9My2MFcesIpxDByri+8tzIo46ZhGVqCIc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oW/MCdCBfofWKNX53GDj+8BWqBqqjg69joxfMpcpw8aa9seEuQpy2EYOWdtGECbxv WJOAPKkA2rMLyAB/BdZuPGukY0eQVqWNDbNK+0StPy0aGY61Xi8igid7v76dg+8fdM Olq6HjRCe/2Zo/SJTpLdr7VtYhX1kgBQI9SULV78= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sourabh Jain , Mahesh Salgaonkar , Michael Ellerman , Sasha Levin Subject: [PATCH 6.4 452/737] powerpc/fadump: reset dump area size if fadump memory reserve fails Date: Mon, 11 Sep 2023 15:45:11 +0200 Message-ID: <20230911134703.224215198@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134650.286315610@linuxfoundation.org> References: <20230911134650.286315610@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sourabh Jain [ Upstream commit d1eb75e0dfed80d2d85b664e28a39f65b290ab55 ] In case fadump_reserve_mem() fails to reserve memory, the reserve_dump_area_size variable will retain the reserve area size. This will lead to /sys/kernel/fadump/mem_reserved node displaying an incorrect memory reserved by fadump. To fix this problem, reserve dump area size variable is set to 0 if fadump failed to reserve memory. Fixes: 8255da95e545 ("powerpc/fadump: release all the memory above boot memory size") Signed-off-by: Sourabh Jain Acked-by: Mahesh Salgaonkar Signed-off-by: Michael Ellerman Link: https://msgid.link/20230704050715.203581-1-sourabhjain@linux.ibm.com Signed-off-by: Sasha Levin --- arch/powerpc/kernel/fadump.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index ea0a073abd969..3ff2da7b120b5 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -654,6 +654,7 @@ int __init fadump_reserve_mem(void) return ret; error_out: fw_dump.fadump_enabled = 0; + fw_dump.reserve_dump_area_size = 0; return 0; } -- 2.40.1