Date: Tue, 5 May 2015 15:25:49 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Waiman Long <waiman.long@hp.com>, Nathan Zimmer <nzimmer@sgi.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Scott Norton <scott.norton@hp.com>,
        Daniel J Blueman <daniel@numascale.com>, Linux-MM <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/13] Parallel struct page initialisation v4
Message-Id: <20150505152549.037679566fad8c593df176ed@linux-foundation.org>
In-Reply-To: <20150505221329.GE2462@suse.de>
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On Tue, 5 May 2015 23:13:29 +0100 Mel Gorman <mgorman@suse.de> wrote:

> > Alternatively, the page allocator can go off and synchronously
> > initialize some pageframes itself.  Keep doing that until the
> > allocation attempt succeeds.
> > 
> 
> That was rejected during review of earlier attempts at this feature on
> the grounds that it impacted allocator fast paths. 

eh?  Changes are only needed on the allocation-attempt-failed path,
which is slow-path.
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