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From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: fix race in inode cluster freeing failing to stale inodes
Date: Tue, 25 May 2010 12:40:52 -0400	[thread overview]
Message-ID: <20100525164052.GA18666@infradead.org> (raw)
In-Reply-To: <1274581478-19260-1-git-send-email-david@fromorbit.com>

Looks good, but some minor nits on the comments below:


Reviewed-by: Christoph Hellwig <hch@lst.de>

>  		/*
> +		 * Now we've locked out tail pushing and flushing by locking
> +		 * the buffer, look for each inode in memory and attempt to
> +		 * lock it. Any inode we get the locks on add it to the inode
> +		 * buffer and set it up for being staled on buffer IO
> +		 * completion.

This comment reads a bit odd.  The first thing we do in the loop is
locking the buffer, so the "Now" at the beginning of the comment feels
rather out of place.  What about:

		/*
		 * For each inode in memory attempt to add it to the inode
		 * buffer and set it up for being staled on buffer IO
		 * completion.  This is safe as we've locked out tail
		 * pushing and flushing by locking the buffer.
		 *
		 * We have already marked every inode that was part of
		 * a transaction stale above, which means there is no
		 * point in even trying to lock them.
		 */

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  reply	other threads:[~2010-05-25 16:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-23  2:24 [PATCH] xfs: fix race in inode cluster freeing failing to stale inodes Dave Chinner
2010-05-25 16:40 ` Christoph Hellwig [this message]
2010-05-25 22:58   ` Dave Chinner

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