[PATCH] xfs: fix race in inode cluster freeing failing to stale inodes

[Christoph Hellwig]

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


Reviewed-by: Christoph Hellwig <hch at 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.
		 */