Re: [PATCH][RFC] fast file mapping for loop

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To: Jens Axboe <jens.axboe@...>

Cc: Christoph Hellwig <hch@...>, Nick Piggin <nickpiggin@...>, <linux-kernel@...>, <chris.mason@...>, <linux-fsdevel@...>, Peter Zijlstra <peterz@...>

Subject: Re: [PATCH][RFC] fast file mapping for loop

Date: Thursday, January 10, 2008 - 4:54 am

On Thu, Jan 10, 2008 at 09:44:57AM +0100, Jens Axboe wrote:
quoted text> > IMHO this shouldn't be done in the loop driver anyway.  Filesystems have
> > their own effricient extent lookup trees (well, at least xfs and btrfs
> > do), and we should leverage that instead of reinventing it.
> 
> Completely agree, it's just needed right now for this solution since all
> we have is a crappy bmap() interface to get at those mappings.

So let's fix the interface instead of piling crap ontop of it.  As I
said I think Peter has something to start with so let's beat on it
until we have something suitable.   If we aren't done by end of Feb
I'm happy to host a hackfest to get it sorted around the fs/storage
summit..

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Messages in current thread:

[PATCH][RFC] fast file mapping for loop, Jens Axboe, (Wed Jan 9, 4:52 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Mon Jan 14, 1:10 pm)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Mon Jan 14, 1:54 pm)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Tue Jan 15, 5:25 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Tue Jan 15, 5:36 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Tue Jan 15, 6:07 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Tue Jan 15, 10:04 am)

Re: [PATCH][RFC] fast file mapping for loop, Daniel Phillips, (Fri Jan 11, 2:17 pm)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Fri Jan 11, 2:23 pm)

Re: [PATCH][RFC] fast file mapping for loop, Andi Kleen, (Wed Jan 9, 11:34 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 4:43 am)

Re: [PATCH][RFC] fast file mapping for loop, Bill Davidsen, (Thu Jan 10, 9:25 pm)

Re: [PATCH][RFC] fast file mapping for loop, Nick Piggin, (Wed Jan 9, 9:42 pm)

Re: [PATCH][RFC] fast file mapping for loop, Christoph Hellwig, (Thu Jan 10, 4:37 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 4:44 am)

Re: [PATCH][RFC] fast file mapping for loop, Christoph Hellwig, (Thu Jan 10, 4:54 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 5:01 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Thu Jan 10, 8:53 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 9:03 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Thu Jan 10, 9:46 am)

Re: [PATCH][RFC] fast file mapping for loop, Peter Zijlstra, (Thu Jan 10, 5:37 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 5:49 am)

Re: [PATCH][RFC] fast file mapping for loop, Peter Zijlstra, (Thu Jan 10, 5:52 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 6:02 am)

Re: [PATCH][RFC] fast file mapping for loop, Peter Zijlstra, (Thu Jan 10, 6:20 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 4:34 am)

Re: [PATCH][RFC] fast file mapping for loop, Alasdair G Kergon, (Wed Jan 9, 7:16 pm)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 4:31 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 4:42 am)

Re: [PATCH][RFC] fast file mapping for loop, Mikulas Patocka, (Fri Jan 11, 3:39 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Fri Jan 11, 3:58 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Thu Jan 10, 8:47 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Thu Jan 10, 8:57 am)

Re: [PATCH][RFC] fast file mapping for loop, Christoph Hellwig, (Wed Jan 9, 5:31 am)

Re: [PATCH][RFC] fast file mapping for loop, Jens Axboe, (Wed Jan 9, 5:43 am)

Re: [PATCH][RFC] fast file mapping for loop, Chris Mason, (Wed Jan 9, 7:00 am)


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Andrew Morton	Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3
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