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Re: [PATCH 13/16] xfs: batch inode reclaim lookup

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 13/16] xfs: batch inode reclaim lookup
From: Alex Elder <aelder@xxxxxxx>
Date: Thu, 23 Sep 2010 12:39:29 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1285137869-10310-14-git-send-email-david@xxxxxxxxxxxxx>
References: <1285137869-10310-1-git-send-email-david@xxxxxxxxxxxxx> <1285137869-10310-14-git-send-email-david@xxxxxxxxxxxxx>
Reply-to: aelder@xxxxxxx
On Wed, 2010-09-22 at 16:44 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> Batch and optimise the per-ag inode lookup for reclaim to minimise
> scanning overhead. This involves gang lookups on the radix trees to
> get multiple inodes during each tree walk, and tighter validation of
> what inodes can be reclaimed without blocking befor we take any
> locks.
> 
> This is based on ideas suggested in a proof-of-concept patch
> posted by Nick Piggin.

Looks good.

Reviewed-by: Alex Elder <aelder@xxxxxxx>

> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>


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