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Re: [PATCH 8/8] Per-container pages reclamation [message #13662 is a reply to message #13630]

Fri, 01 June 2007 09:23

Pavel Emelianov
Messages: 1149
Registered: September 2006

Senior Member

Balbir Singh wrote:

[snip]

>>>> + for_each_online_node(node) {
>>>> +#ifdef CONFIG_HIGHMEM
>>>> + zones = NODE_DATA(node)->node_zonelists[ZONE_HIGHMEM].zones;
>>>> + if (do_try_to_free_pages(zones, sc.gfp_mask, &sc))
>>>> + return 1;
>>>> +#endif
>>>> + zones = NODE_DATA(node)->node_zonelists[ZONE_NORMAL].zones;
>>>> + if (do_try_to_free_pages(zones, sc.gfp_mask, &sc))
>>>> + return 1;
>>>> + }
>>> Definitely need to handle ZONE_DMA32 and ZONE_DMA (some architectures put
>>> all memory into ZONE_DMA (or they used to))
>
> Won't the node_zonelists[ZONE_NORMAL].zones contain all lower zones (including
> ZONE_DMA and ZONE_DMA32) from various nodes organized by cost?
>
> I need to go lookup the node_zonelists creation.

OK, I've got it. The node's zonelist indexed with ZONE_XXX contains
the zone specified and all the zones beyond it. Thus shrinking from
ZONE_HIGHMEM (ZONE_NORMAL if the latter does not exist) is enough.

Thanks,
Pavel

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[Message index]

		[PATCH 0/8] RSS controller based on process containers (v3) By: Pavel Emelianov on Wed, 30 May 2007 15:24
		[PATCH 4/8] RSS container core By: Pavel Emelianov on Wed, 30 May 2007 15:27
		Re: [PATCH 4/8] RSS container core By: Andrew Morton on Wed, 30 May 2007 21:46
		Re: [PATCH 4/8] RSS container core By: Pavel Emelianov on Thu, 31 May 2007 08:57
		[PATCH 5/8] RSS accounting hooks over the code By: Pavel Emelianov on Wed, 30 May 2007 15:29
		Re: [PATCH 5/8] RSS accounting hooks over the code By: Andrew Morton on Wed, 30 May 2007 21:46
		Re: [PATCH 5/8] RSS accounting hooks over the code By: Balbir Singh on Fri, 01 June 2007 06:48
		[PATCH 6/8] Per container OOM killer By: Pavel Emelianov on Wed, 30 May 2007 15:31
		[PATCH 7/8] Scanner changes needed to implement per-container scanner By: Pavel Emelianov on Wed, 30 May 2007 15:35
		Re: [PATCH 7/8] Scanner changes needed to implement per-container scanner By: Andrew Morton on Wed, 30 May 2007 21:46
		Re: [PATCH 7/8] Scanner changes needed to implement per-container scanner By: Balbir Singh on Fri, 01 June 2007 06:50
		Re: [PATCH 7/8] Scanner changes needed to implement per-container scanner By: Pavel Emelianov on Fri, 01 June 2007 07:36
		Re: [PATCH 7/8] Scanner changes needed to implement per-container scanner By: Balbir Singh on Fri, 01 June 2007 07:38
		[PATCH 8/8] Per-container pages reclamation By: Pavel Emelianov on Wed, 30 May 2007 15:38
		Re: [PATCH 8/8] Per-container pages reclamation By: Andrew Morton on Wed, 30 May 2007 21:47
		Re: [PATCH 8/8] Per-container pages reclamation By: Vaidyanathan Srinivas on Thu, 31 May 2007 08:22
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Thu, 31 May 2007 09:22
		Re: [PATCH 8/8] Per-container pages reclamation By: Pavel Emelianov on Fri, 01 June 2007 09:23
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Fri, 01 June 2007 09:23
		Re: [PATCH 8/8] Per-container pages reclamation By: Pavel Emelianov on Thu, 31 May 2007 10:31
		Re: [PATCH 8/8] Per-container pages reclamation By: Andrew Morton on Thu, 31 May 2007 17:58
		Re: [PATCH 8/8] Per-container pages reclamation By: Pavel Emelianov on Fri, 01 June 2007 07:40
		Re: [PATCH 8/8] Per-container pages reclamation By: Andrew Morton on Fri, 01 June 2007 07:49
		Re: [PATCH 8/8] Per-container pages reclamation By: Balbir Singh on Fri, 01 June 2007 07:02
		Re: [PATCH 8/8] Per-container pages reclamation By: Pavel Emelianov on Fri, 01 June 2007 07:47

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