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Date: Sun, 7 Aug 2011 23:27:29 +0900
From: Minchan Kim <minchan.kim@gmail.com>
Subject: Re: [PATCH] readahead: add comments on PG_readahead
Message-ID: <20110807142729.GA2055@barrios-desktop>
References: <20110805035040.GB11532@localhost>
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To: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, Hugh Dickins <hughd@google.com>, Matthew Wilcox <willy@linux.intel.com>, Linux Memory Management List <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>

On Fri, Aug 05, 2011 at 11:50:40AM +0800, Wu Fengguang wrote:
> Add comments to clarify the easily misunderstood PG_readahead timing.
> 
> PG_readahead is a trigger to say, when you get this far, it's time to
> think about kicking off the _next_ readahead.            -- Hugh
> 
> CC: Hugh Dickins <hughd@google.com>
> CC: Matthew Wilcox <willy@linux.intel.com>
> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>

I expect it would be very helpful.

-- 
Kind regards,
Minchan Kim

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