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mm: free memblock.memory in free_all_bootmem

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When calling free_all_bootmem() the free areas under memblock's control
are released to the buddy allocator.  Additionally the reserved list is
freed if it was reallocated by memblock.  The same should apply for the
memory list.

Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Philipp Hachtmann
2014-01-23 15:53:11 -08:00
committed by Linus Torvalds
parent 87379ec8c2
commit 5e270e2548
3 changed files with 26 additions and 1 deletions
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10
mm/nobootmem.c
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@@ -122,11 +122,19 @@ static unsigned long __init free_low_memory_core_early(void)
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
/* free range that is used for reserved array if we allocate it */
/* Free memblock.reserved array if it was allocated */
size = get_allocated_memblock_reserved_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
/* Free memblock.memory array if it was allocated */
size = get_allocated_memblock_memory_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
#endif
return count;
}