Re: [GIT] Bcache version 12

[Pekka Enberg]

Hi Kent,

On Sat, Sep 10, 2011 at 9:45 AM, Kent Overstreet
<kent.overstreet@xxxxxxxxx> wrote:
> bcache, n.: a cache for arbitrary block devices that uses an SSD
>
> It's probably past time I started poking people to see about getting
> this stuff in. It's synced up with mainline, the documentation is for
> once relatively up to date, and it looks just about production ready.
>
> Suggestions are more than welcome on how to make it easier to review -
> it's entirely too much code, I know (near 10k lines now). I'll be
> emailing the patches that touch other parts of the kernel separately.
>
> Short overview:
> Bcache does both writethrough and writeback caching. It presents itself
> as a new block device, a bit like say md. You can cache an arbitrary
> number of block devices with a single cache device, and attach and
> detach things at runtime - it's quite flexible.

The changelog is pretty useless for people like myself who have never
heard of bcache before because it lacks any explanation why bcache is
useful (i.e. a real-world use case).

                        Pekka
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