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From: Christoph Hellwig <hch@infradead.org>
To: Petros Koutoupis <petros@petroskoutoupis.com>
Cc: linux-kernel@vger.kernel.org,
	"devel@rapiddisk.org" <devel@rapiddisk.org>
Subject: Re: [PATCH] Patch to integrate RapidDisk and RapidCache RAM Drive / Caching modules into the kernel
Date: Sun, 27 Sep 2015 23:49:36 -0700	[thread overview]
Message-ID: <20150928064936.GA22280@infradead.org> (raw)
In-Reply-To: <1443374244.8013.7.camel@petros-ultrathin>

On Sun, Sep 27, 2015 at 12:17:24PM -0500, Petros Koutoupis wrote:
> Attached is a patch for two modules: RapidDisk & RapidCache. RapidDisk is a
> Linux RAM drive module which allows the user to dynamically create, remove,
> and resize RAM-based block devices. RapidDisk is designed to work with both
> volatile and non-volatile memory. In the case of volatile memory, memory is
> allocated only when needed. The RapidCache module in turn utilizes a RapidDisk
> volume as a FIFO Write-Through caching node to a slower block device.

Hi Petros,

this is three things at the same time!  We already have a ramdisk
driver, a pmem drive, bcache and dm-cache, so for each of them please
explain why we'd want to duplicate them instead of adding whatever
features you need to them.  First step is to identify those features.

  reply	other threads:[~2015-09-28  6:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-27 17:17 [PATCH] Patch to integrate RapidDisk and RapidCache RAM Drive / Caching modules into the kernel Petros Koutoupis
2015-09-28  6:49 ` Christoph Hellwig [this message]
2015-09-28 14:50   ` Petros Koutoupis
     [not found]   ` <CALMxJTyS5ARHw5NWhiPkJOh_0ys2x7cGVNdn60O6ecaUTFkq_Q@mail.gmail.com>
2015-09-28 16:29     ` Christoph Hellwig
2015-09-28 16:45       ` Petros Koutoupis
2015-09-29 14:32         ` Austin S Hemmelgarn
2015-09-30 14:29           ` Petros Koutoupis
2015-09-30 15:17             ` Austin S Hemmelgarn

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