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From: Chris Mason <clm@fb.com>
To: "amadvance@gmail.com" <amadvance@gmail.com>
Cc: Josef Bacik <jbacik@fb.com>, "neilb@suse.de" <neilb@suse.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: [RFC v2 2/2] fs: btrfs: Extends btrfs/raid56 to support up to six parities
Date: Mon, 6 Jan 2014 14:12:56 +0000	[thread overview]
Message-ID: <1389017609.23310.0.camel@ret.masoncoding.com> (raw)
In-Reply-To: <1389000716-3274-3-git-send-email-amadvance@gmail.com>

On Mon, 2014-01-06 at 10:31 +0100, Andrea Mazzoleni wrote:
> This patch changes btrfs/raid56.c to use the new raid interface and
> extends its support to an arbitrary number of parities.
> 
> More in details, the two faila/failb failure indexes are now replaced
> with a fail[] vector that keeps track of up to six failures, and now
> the new raid_par() and raid_rec() functions are used to handle with
> parity instead of the old xor/raid6 ones.
> 

Neat.  The faila/failb were always my least favorite part of the btrfs
code ;)  Did you test just raid5/6 or also the higher parity counts?

-chris


  reply	other threads:[~2014-01-06 14:13 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-06  9:31 [RFC v2 0/2] New RAID library supporting up to six parities Andrea Mazzoleni
2014-01-06  9:31 ` [RFC v2 2/2] fs: btrfs: Extends btrfs/raid56 to support " Andrea Mazzoleni
2014-01-06 14:12   ` Chris Mason [this message]
2014-01-07 10:35     ` Andrea Mazzoleni
2014-01-06 11:59 ` [RFC v2 0/2] New RAID library supporting " joystick
     [not found]   ` <laea0q$d0g$2@ger.gmane.org>
2014-01-06 15:49     ` joystick
2014-01-06 16:08       ` Alex Elsayed
2014-01-07 11:06   ` Andrea Mazzoleni
2014-01-06 17:02 ` Phil Turmel
2014-01-06 17:27   ` David Sterba
2014-01-07 11:19 ` Andrea Mazzoleni

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