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-rw-r--r--mm/bootmem.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 0131170c9d54..53cf62b186b6 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -766,13 +766,17 @@ void * __init alloc_bootmem_section(unsigned long size,
unsigned long section_nr)
{
bootmem_data_t *bdata;
- unsigned long pfn, goal;
+ unsigned long pfn, goal, limit;
pfn = section_nr_to_pfn(section_nr);
goal = pfn << PAGE_SHIFT;
+ limit = section_nr_to_pfn(section_nr + 1) << PAGE_SHIFT;
bdata = &bootmem_node_data[early_pfn_to_nid(pfn)];
- return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, 0);
+ if (goal + size > limit)
+ limit = 0;
+
+ return alloc_bootmem_core(bdata, size, SMP_CACHE_BYTES, goal, limit);
}
#endif