From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752045AbeDFQRK (ORCPT ); Fri, 6 Apr 2018 12:17:10 -0400 Received: from mail-ot0-f195.google.com ([74.125.82.195]:45170 "EHLO mail-ot0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751926AbeDFQRJ (ORCPT ); Fri, 6 Apr 2018 12:17:09 -0400 X-Google-Smtp-Source: AIpwx4/3POIawLN5WXcY7FM8LDHpl7TiMZzU5qXncMjS+k8xy1R+RC8p4twq3MlEiR4GuSGwJ7RV0g== Subject: Re: [PATCH 1/1] arm64: To remove initrd reserved area entry from memblock To: CHANDAN VN , catalin.marinas@arm.com, will.deacon@arm.com, takahiro.akashi@linaro.org, james.morse@arm.com, robin.murphy@arm.com, steve.capper@arm.com, kristina.martsenko@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: cpgs@samsung.com, vn.chandan@gmail.com References: <1522990390-30804-1-git-send-email-chandan.vn@samsung.com> From: Laura Abbott Message-ID: Date: Fri, 6 Apr 2018 09:17:05 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <1522990390-30804-1-git-send-email-chandan.vn@samsung.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/05/2018 09:53 PM, CHANDAN VN wrote: > INITRD reserved area entry is not removed from memblock > even though initrd reserved area is freed. After freeing > the memory it is released from memblock. The same can be > checked from /sys/kernel/debug/memblock/reserved. > > The patch makes sure that the initrd entry is removed from > memblock when keepinitrd is not enabled. > Does this have an impact on anything besides accounting in memblock? > Signed-off-by: CHANDAN VN > --- > arch/arm64/mm/init.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c > index 9f3c47a..1b18b47 100644 > --- a/arch/arm64/mm/init.c > +++ b/arch/arm64/mm/init.c > @@ -646,8 +646,10 @@ void free_initmem(void) > > void __init free_initrd_mem(unsigned long start, unsigned long end) > { > - if (!keep_initrd) > + if (!keep_initrd) { > free_reserved_area((void *)start, (void *)end, 0, "initrd"); > + memblock_free(__virt_to_phys(start), end - start); > + } > } > > static int __init keepinitrd_setup(char *__unused) >