linux-kernel - Re: How to mount filesystem from RAM ?

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Message-ID: <BANLkTimxPS26Chnb+VCPZKPnbHY=0d_7uw@mail.gmail.com>
Date:	Wed, 20 Apr 2011 10:05:30 +0900
From:	Jongman Heo <jongman.heo@...il.com>
To:	Rabin Vincent <rabin@....in>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: How to mount filesystem from RAM ?

2011/4/19 Rabin Vincent <rabin@....in>:
> On Tue, Apr 19, 2011 at 11:32, Jongman Heo <jongman.heo@...il.com> wrote:
>> Instead, I can load the data from the partition into RAM, which means
>> whole filesystem data is copied into some location of RAM. ( I know
>> the physical address, for the data to be loaded.) This copy operation
>> is done by bootloader side, not in Linux.
>>
>> In this case, how can I mount the filesystem from RAM? Is there any
>> way to do this?
>
> Have a look at slram or phram in drivers/mtd/devices/.
>
>> And I think the memory location of filesystem data should be reserved
>> not to be used by Linux kernel and user space application, am I right?
>
> One way to do this is by passing appropriate mem= arguments.
>

Hi, Rabin.

I think that is what I've been looking for. I'll try phram.

Thanks and regards,
Jongman.
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