path: root/arch
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authorMichael Schmitz <schmitzmic@googlemail.com>2011-04-26 14:51:53 +1200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-02 09:19:45 -0700
commit8858587af25efc06d5cce42676786b3d7a9160f2 (patch)
treef5731abbd499650330821e9780e5a4d0a3fd83f4 /arch
parent28785447dc596d0612513010e7bb23cce9c88e50 (diff)
m68k/mm: Set all online nodes in N_NORMAL_MEMORY
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 <rientjes@google.com> attempting to set node state immediately when bringing the node online. Signed-off-by: Michael Schmitz <schmitz@debian.org> Tested-by: Thorsten Glaser <tg@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 02b7a03e422..8b3db1c587f 100644
--- 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);