2.6.35-longterm review patch. If anyone has any objections, please let me know.
------------------
From: Michael Schmitz <schmitz...@googlemail.com>
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
<rient...@google.com> attempting to set node state immediately when
bringing the node online.
Signed-off-by: Michael Schmitz <schm...@debian.org>
Tested-by: Thorsten Glaser <t...@debian.org>
Signed-off-by: Geert Uytterhoeven <ge...@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
arch/m68k/mm/motorola.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux-2.6.35.y/arch/m68k/mm/motorola.c
===================================================================
--- linux-2.6.35.y.orig/arch/m68k/mm/motorola.c
+++ linux-2.6.35.y/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);
}
}
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