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Re: [PATCH v2 5/9] xfsrestore: cleanup node allocation

To: wkendall@xxxxxxx
Subject: Re: [PATCH v2 5/9] xfsrestore: cleanup node allocation
From: Alex Elder <aelder@xxxxxxx>
Date: Mon, 15 Nov 2010 14:38:29 -0600
Cc: xfs@xxxxxxxxxxx
In-reply-to: <20101105163643.987306372@xxxxxxx>
References: <20101105163500.747192954@xxxxxxx> <20101105163643.987306372@xxxxxxx>
Reply-to: aelder@xxxxxxx
On Fri, 2010-11-05 at 11:35 -0500, wkendall@xxxxxxx wrote:
> plain text document attachment (node_alloc_cleanup)
> Simplify the node allocation code. The current code takes some
> number of nodes from a new segment and links them into the
> freelist whenever the freelist is depleted. There's no reason
> to put the new nodes on the freelist, we can just allocate the
> next available new node as needed. This also saves a trip through
> win_map/win_unmap if there are no nodes on the freelist (the
> common case).

Prior to your change, a node allocated off the "virgin"
segment got zeroed before it gets returned for use. Your
change eliminates that.  Is that OK?

You also dropped a few TREE_DEBUG messages.  Were they
not useful?  (Just curious.)

Otherwise looks good.

Reviewed-by: Alex Elder <aelder@xxxxxxx>

> Signed-off-by: Bill Kendall <wkendall@xxxxxxx>


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