From: David Miller <davem@davemloft.net>
From: Eric Dumazet <dada1@cosmosbay.com>
To: dada1@cosmosbay.com
Cc: akpm@linux-foundation.org, dhowells@redhat.com,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] MM : alloc_large_system_hash() can free some memory for non power-of-two bucketsize
Date: Sat, 19 May 2007 11:54:42 -0700 (PDT) [thread overview]
Date: Sat, 19 May 2007 20:07:11 +0200 [thread overview]
Message-ID: <20070519.115442.30184476.davem@davemloft.net> (raw)
In-Reply-To: <464F3CCF.2070901@cosmosbay.com>
> Maybe David has an idea how this can be done properly ?
>
> ref : http://marc.info/?l=linux-netdev&m=117706074825048&w=2
You need to use __GFP_COMP or similar to make this splitting+freeing
thing work.
Otherwise the individual pages don't have page references, only
the head page of the high-order page will.
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next prev parent reply other threads:[~2007-05-19 18:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-18 9:54 Eric Dumazet
2007-05-18 18:21 ` Christoph Lameter
2007-05-19 8:37 ` Andrew Morton
2007-05-19 18:07 ` Eric Dumazet
2007-05-19 18:54 ` David Miller, Eric Dumazet [this message]
2007-05-19 20:36 ` Eric Dumazet
2007-05-19 18:21 ` William Lee Irwin III
2007-05-19 18:41 ` Eric Dumazet
2007-05-21 8:11 ` William Lee Irwin III
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