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From: Andrew Morton <akpm@digeo.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: phillips@arcor.de, linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [RFC] My research agenda for 2.7
Date: Thu, 26 Jun 2003 13:10:05 -0700	[thread overview]
Message-ID: <20030626131005.4609acb5.akpm@digeo.com> (raw)
In-Reply-To: <Pine.LNX.4.53.0306262030500.5910@skynet>

Mel Gorman <mel@csn.ul.ie> wrote:
>
> Buddy allocators, including the
>  one implemented in Linux, do not record what order allocation a struct
>  page belongs to.

We can do that.


--- 25/mm/page_alloc.c~a	2003-06-26 13:09:11.000000000 -0700
+++ 25-akpm/mm/page_alloc.c	2003-06-26 13:09:24.000000000 -0700
@@ -123,6 +123,7 @@ static void prep_compound_page(struct pa
 		SetPageCompound(p);
 		p->lru.next = (void *)page;
 	}
+	page[1].index = order;
 }
 
 static void destroy_compound_page(struct page *page, unsigned long order)

_

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  reply	other threads:[~2003-06-26 20:10 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-24 23:11 Daniel Phillips
2003-06-25  0:47 ` William Lee Irwin III
2003-06-25  1:07   ` Daniel Phillips
2003-06-25  1:10     ` William Lee Irwin III
2003-06-25  1:25       ` Daniel Phillips
2003-06-25  1:30         ` William Lee Irwin III
2003-06-25  9:29 ` Mel Gorman
2003-06-26 19:00   ` Daniel Phillips
2003-06-26 20:01     ` Mel Gorman
2003-06-26 20:10       ` Andrew Morton [this message]
2003-06-27  0:30       ` Daniel Phillips
2003-06-27 13:00         ` Mel Gorman
2003-06-27 14:38           ` Martin J. Bligh
2003-06-27 14:41           ` Daniel Phillips
2003-06-27 14:43           ` Martin J. Bligh
2003-06-27 14:54             ` Daniel Phillips
2003-06-27 15:04               ` Martin J. Bligh
2003-06-27 15:17                 ` Daniel Phillips
2003-06-27 15:22                   ` Mel Gorman
2003-06-27 15:50                     ` Daniel Phillips
2003-06-27 16:00                       ` Daniel Phillips
2003-06-29 19:25                         ` Mel Gorman
2003-06-28 21:06                           ` Daniel Phillips
2003-06-29 21:26                             ` Mel Gorman
2003-06-28 21:54                               ` Daniel Phillips
2003-06-29 22:07                                 ` William Lee Irwin III
2003-06-28 23:18                                   ` Daniel Phillips
2003-07-02 21:10           ` Mike Fedyk
2003-07-03  2:04             ` Larry McVoy
2003-07-03  2:20               ` William Lee Irwin III

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