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| author | Michael Schmitz <schmitzmic@googlemail.com> | 2011-04-26 14:51:53 +1200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2011-04-27 17:36:00 +0200 |
| commit | 4aac0b4815ba592052758f4b468f253d383dc9d6 (patch) | |
| tree | acac571ce5c3099e62b1a4098ff4bf7faf96b132 | |
| parent | 8e10cd74342c7f5ce259cceca36f6eba084f5d58 (diff) | |
| download | op-kernel-dev-4aac0b4815ba592052758f4b468f253d383dc9d6.zip op-kernel-dev-4aac0b4815ba592052758f4b468f253d383dc9d6.tar.gz | |
m68k/mm: Set all online nodes in N_NORMAL_MEMORY
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>
CC: stable@kernel.org
| -rw-r--r-- | arch/m68k/mm/motorola.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 02b7a03..8b3db1c 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); } } |
