From: Jamie Lokier <jamie@shareable.org>
To: Marco <marco.stornelli@gmail.com>
Cc: Linux FS Devel <linux-fsdevel@vger.kernel.org>,
Linux Embedded <linux-embedded@vger.kernel.org>,
linux-kernel@vger.kernel.org,
Daniel Walker <dwalker@soe.ucsc.edu>
Subject: Re: [PATCH 00/14] Pramfs: Persistent and protected ram filesystem
Date: Sat, 13 Jun 2009 16:59:57 +0100 [thread overview]
Message-ID: <20090613155957.GA16220@shareable.org> (raw)
In-Reply-To: <4A33A7A2.1050608@gmail.com>
Marco wrote:
> Linux traditionally had no support for a persistent, non-volatile
> RAM-based filesystem, persistent meaning the filesystem survives a
> system reboot or power cycle intact. The RAM-based filesystems such as
> tmpfs and ramfs have no actual backing store but exist entirely in the
> page and buffer caches, hence the filesystem disappears after a system
> reboot or power cycle.
Why is a ramdisk not sufficient for this?
Why is an entire filesystem needed, instead of simply a block driver
if the ramdisk driver cannot be used?
It just struck me as a lot of code which might be completely
unnecessary for the desired functionality.
-- Jamie
next prev parent reply other threads:[~2009-06-13 15:59 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-13 13:20 [PATCH 00/14] Pramfs: Persistent and protected ram filesystem Marco
2009-06-13 13:41 ` Daniel Walker
2009-06-13 15:59 ` Jamie Lokier [this message]
2009-06-14 7:15 ` Marco
2009-06-14 7:15 ` Marco
2009-06-14 11:08 ` Artem Bityutskiy
2009-06-14 11:08 ` Artem Bityutskiy
2009-06-15 15:51 ` Bryan Henderson
2009-06-15 17:42 ` Marco
2009-06-14 11:46 ` Jamie Lokier
2009-06-14 16:04 ` Marco
2009-06-16 15:07 ` Jamie Lokier
2009-06-16 19:15 ` Marco
2009-06-24 17:41 ` Jamie Lokier
2009-06-25 6:44 ` Marco Stornelli
2009-06-25 6:44 ` Marco Stornelli
2009-06-26 11:30 ` Jamie Lokier
2009-06-26 11:30 ` Jamie Lokier
2009-06-26 16:56 ` Marco
2009-06-24 14:21 ` Pavel Machek
2009-06-21 6:40 ` Pavel Machek
2009-06-21 17:34 ` Marco
2009-06-21 17:34 ` Marco
2009-06-21 20:52 ` Pavel Machek
2009-06-22 6:33 ` Marco Stornelli
2009-06-22 17:20 ` Pavel Machek
2009-06-22 17:31 ` Tim Bird
2009-06-22 17:37 ` Pavel Machek
2009-06-22 18:07 ` Marco
2009-06-22 20:40 ` Henrique de Moraes Holschuh
2009-06-22 20:40 ` Pavel Machek
2009-06-22 21:50 ` Tim Bird
2009-06-22 21:57 ` Pavel Machek
2009-06-22 22:38 ` Pavel Machek
2009-06-22 23:26 ` Chris Friesen
2009-06-23 1:42 ` David VomLehn
2009-06-23 18:07 ` Marco
2009-06-23 18:29 ` Pavel Machek
2009-06-24 17:47 ` Jamie Lokier
2009-06-25 6:32 ` Marco Stornelli
2009-06-25 6:32 ` Marco Stornelli
2009-06-22 18:55 ` Tim Bird
2009-06-22 21:02 ` Pavel Machek
2009-06-22 22:02 ` Tim Bird
2009-06-22 18:08 ` Marco
2009-06-15 17:15 ` Tim Bird
2009-06-15 17:44 ` Marco
2009-06-15 17:58 ` Tim Bird
2009-06-17 18:32 ` Chris Friesen
2009-06-18 6:35 ` Marco Stornelli
[not found] <4a4254e2.09c5660a.109d.46f8@mx.google.com>
2009-06-24 16:49 ` Marco
2009-06-24 17:38 ` Marco
2009-06-24 17:59 ` Pavel Machek
2009-06-25 6:30 ` Marco Stornelli
2009-06-25 6:30 ` Marco Stornelli
2009-06-28 8:59 ` Pavel Machek
2009-06-28 16:44 ` Marco Stornelli
2009-06-28 17:33 ` Marco Stornelli
2009-07-09 23:42 ` Pavel Machek
2009-06-24 17:46 ` Pavel Machek
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