mm/memblock.c: add debug output for memblock_add()

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

[[email protected]: s/memblock_memory/memblock_add/ in message]
Signed-off-by: Alexander Kuleshov <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Philipp Hachtmann <[email protected]>
Cc: Fabian Frederick <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Emil Medve <[email protected]>
Cc: Akinobu Mita <[email protected]>
Cc: Tang Chen <[email protected]>
Cc: Tony Luck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

1 files changed, 16 insertions, 2 deletions

diff --git a/mm/memblock.c b/mm/memblock.c
index 3f37a0bca5d5..9318b567ed79 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_add: [%#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);
 }
 
 /**