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Subject[PATCH] memblock: Add limit checking to memblock_virt_alloc
Date
In original bootmem wrapper for memblock, we have limit checking.

Add it to memblock_virt_alloc, to address arm and x86 booting crash.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>

---
mm/memblock.c | 3 +++
1 file changed, 3 insertions(+)

Index: linux-2.6/mm/memblock.c
===================================================================
--- linux-2.6.orig/mm/memblock.c
+++ linux-2.6/mm/memblock.c
@@ -1077,6 +1077,9 @@ static void * __init memblock_virt_alloc
if (!align)
align = SMP_CACHE_BYTES;

+ if (max_addr > memblock.current_limit)
+ max_addr = memblock.current_limit;
+
again:
alloc = memblock_find_in_range_node(size, align, min_addr, max_addr,
nid);

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