linux-ext4 - Re: [PATCH] ext4: Fix the soft lockup with multi block allocator.

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Message-ID: <20071221191020.GM3214@webber.adilger.int>
Date:	Fri, 21 Dec 2007 12:10:20 -0700
From:	Andreas Dilger <adilger@....com>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	tytso@....edu, bzzz@....com, cmm@...ibm.com,
	linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: Fix the soft lockup with multi block allocator.

On Dec 21, 2007  16:39 +0530, Aneesh Kumar K.V wrote:
> @@ -3790,7 +3782,9 @@ repeat:
>  
>  	/* if we still need more blocks and some PAs were used, try again */
>  	if (free < needed && busy) {
> +		busy = 0;
>  		ext4_unlock_group(sb, group);
> +		schedule_timeout(HZ);
>  		goto repeat;
>  	}

Is there nothing we could actually wait on instead of just sleeping for
1 second?

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

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