This is a note to let you know that I've just added the patch titled
m68k/mm: Set all online nodes in N_NORMAL_MEMORY
to the 2.6.38-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
m68k-mm-set-all-online-nodes-in-n_normal_memory.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 4aac0b4815ba592052758f4b468f253d383dc9d6 Mon Sep 17 00:00:00 2001
From: Michael Schmitz <[email protected]>
Date: Tue, 26 Apr 2011 14:51:53 +1200
Subject: m68k/mm: Set all online nodes in N_NORMAL_MEMORY
From: Michael Schmitz <[email protected]>
commit 4aac0b4815ba592052758f4b468f253d383dc9d6 upstream.
For m68k, N_NORMAL_MEMORY represents all nodes that have present memory
since it does not support HIGHMEM. This patch sets the bit at the time
node_present_pages has been set by free_area_init_node.
At the time the node is brought online, the node state would have to be
done unconditionally since information about present memory has not yet
been recorded.
If N_NORMAL_MEMORY is not accurate, slub may encounter errors since it
uses this nodemask to setup per-cache kmem_cache_node data structures.
This pach is an alternative to the one proposed by David Rientjes
<[email protected]> attempting to set node state immediately when
bringing the node online.
Signed-off-by: Michael Schmitz <[email protected]>
Tested-by: Thorsten Glaser <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/m68k/mm/motorola.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -300,6 +300,8 @@ void __init paging_init(void)
zones_size[ZONE_DMA] = m68k_memory[i].size >> PAGE_SHIFT;
free_area_init_node(i, zones_size,
m68k_memory[i].addr >> PAGE_SHIFT, NULL);
+ if (node_present_pages(i))
+ node_set_state(i, N_NORMAL_MEMORY);
}
}
Patches currently in stable-queue which might be from [email protected]
are
queue-2.6.38/m68k-mm-set-all-online-nodes-in-n_normal_memory.patch
_______________________________________________
stable mailing list
[email protected]
http://linux.kernel.org/mailman/listinfo/stable
