[PATCH] mm/memblock: add debug output for the memblock_add

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memblock_reserve function calls memblock_reserve_region which
prints debugging information if 'memblock=debug' passed to the
command line. This patch adds the same behaviour, but for the 
memblock_add function.

Signed-off-by: Alexander Kuleshov <kuleshovmail@xxxxxxxxx>
---
 mm/memblock.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index 252b77b..c7b8306 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -580,10 +580,24 @@ int __init_memblock memblock_add_node(phys_addr_t base, phys_addr_t size,
 	return memblock_add_range(&memblock.memory, base, size, nid, 0);
 }
 
+static int __init_memblock memblock_add_region(phys_addr_t base,
+						phys_addr_t size,
+						int nid,
+						unsigned long flags)
+{
+	struct memblock_type *_rgn = &memblock.memory;
+
+	memblock_dbg("memblock_memory: [%#016llx-%#016llx] flags %#02lx %pF\n",
+		     (unsigned long long)base,
+		     (unsigned long long)base + size - 1,
+		     flags, (void *)_RET_IP_);
+
+	return memblock_add_range(_rgn, base, size, nid, flags);
+}
+
 int __init_memblock memblock_add(phys_addr_t base, phys_addr_t size)
 {
-	return memblock_add_range(&memblock.memory, base, size,
-				   MAX_NUMNODES, 0);
+	return memblock_add_region(base, size, MAX_NUMNODES, 0);
 }
 
 /**
-- 
2.3.3.611.g09038fc.dirty

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