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| author | Yinghai Lu <yinghai@kernel.org> | 2010-10-28 09:50:17 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-10-28 15:52:36 -0700 |
| commit | 419db274bed4269f475a8e78cbe9c917192cfe8b (patch) | |
| tree | b46d6910ed8075fd901fcbe964984ea20a2dfd74 /arch/x86/mm | |
| parent | 47f19a0814e80e1d4e5c17d61b70fca85ea09162 (diff) | |
| download | linux-419db274bed4269f475a8e78cbe9c917192cfe8b.tar.gz linux-419db274bed4269f475a8e78cbe9c917192cfe8b.tar.bz2 linux-419db274bed4269f475a8e78cbe9c917192cfe8b.zip | |
x86, memblock: Fix early_node_mem with big reserved region.
Xen can reserve huge amounts of memory for pre-ballooning, but that
still shows as RAM in the e820 memory map. early_node_mem could not
find range because of start/end adjusting, and will go through the
fallback path. However, the fallback patch is still using
memblock_x86_find_range_node(), and it is partially top-down because
it go through active_range entries from low to high.
Let's use memblock_find_in_range instead memblock_x86_find_range_node.
So get real top down in fallback path.
We may still need to make memblock_x86_find_range_node to do overall
top_down work.
Reported-by: Jeremy Fitzhardinge <jeremy@goop.org>
Tested-by: Jeremy Fitzhardinge <jeremy@goop.org>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4CC9A9C9.8020700@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 60f498511dd6..7ffc9b727efd 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -178,11 +178,8 @@ static void * __init early_node_mem(int nodeid, unsigned long start, /* extend the search scope */ end = max_pfn_mapped << PAGE_SHIFT; - if (end > (MAX_DMA32_PFN<<PAGE_SHIFT)) - start = MAX_DMA32_PFN<<PAGE_SHIFT; - else - start = MAX_DMA_PFN<<PAGE_SHIFT; - mem = memblock_x86_find_in_range_node(nodeid, start, end, size, align); + start = MAX_DMA_PFN << PAGE_SHIFT; + mem = memblock_find_in_range(start, end, size, align); if (mem != MEMBLOCK_ERROR) return __va(mem); |