linux-kernel - Re: [PATCH v2 6/6] RISC-V: Implement keepinitrd kernel parameter

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Message-ID: <20190212070807.GD26747@infradead.org>
Date:   Mon, 11 Feb 2019 23:08:07 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Anup Patel <Anup.Patel@....com>
Cc:     Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@...radead.org>,
        Atish Patra <Atish.Patra@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v2 6/6] RISC-V: Implement keepinitrd kernel parameter

On Sat, Jan 19, 2019 at 01:28:59PM +0000, Anup Patel wrote:
> This patch implements keepinitrd kernel parameter. By default,
> keepinitrd=1 but users can pass "keepinitrd=0" to free-up
> initrd memory at boot-time in free_initrd_mem() function.
> 
> The keepinitrd kernel parameter is already implemented by
> unicore32, arm, and arm64 architectures and it is documented
> at: Documentation/admin-guide/kernel-parameters.txt

But why do we need it?  Is there any good reason every not to free
the initrd / initramfs memory when it is not used?