linux-ext4 - Re: [PATCH] set s_raid_stride and s_raid_stripe

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Message-ID: <20080109224604.GZ3351@webber.adilger.int>
Date:	Wed, 9 Jan 2008 15:46:04 -0700
From:	Andreas Dilger <adilger@....com>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] set s_raid_stride and s_raid_stripe_width

On Jan 09, 2008  21:33 +0530, Aneesh Kumar K.V wrote:
> > +	if (param->s_raid_stride &&
> > +	    (param->s_raid_stripe_width % param->s_raid_stride) != 0)
> > +		fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
> > +				  "multiple of stride %u.\n\n"),
> > +			param->s_raid_stripe_width, param->s_raid_stride);
> 
> 
> We also want to validate that s_raid_stripe_width is not >=
> blocks_per_group.

And probably that s_raid_stripe_width <= s_raid_stride.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

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