1 files changed, 1 insertions, 13 deletions

diff --git a/mm/sparse.c b/mm/sparse.c
index 42ca0ea9af1b..fac95f2888f2 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -77,7 +77,6 @@ static struct mem_section noinline __init_refok *sparse_index_alloc(int nid)
 
 static int __meminit sparse_index_init(unsigned long section_nr, int nid)
 {
-        static DEFINE_SPINLOCK(index_init_lock);
         unsigned long root = SECTION_NR_TO_ROOT(section_nr);
         struct mem_section *section;
         int ret = 0;
@@ -88,20 +87,9 @@ static int __meminit sparse_index_init(unsigned long section_nr, int nid)
         section = sparse_index_alloc(nid);
         if (!section)
                 return -ENOMEM;
-        /*
-         * This lock keeps two different sections from
-         * reallocating for the same index
-         */
-        spin_lock(&index_init_lock);
-
-        if (mem_section[root]) {
-                ret = -EEXIST;
-                goto out;
-        }
 
         mem_section[root] = section;
-out:
-        spin_unlock(&index_init_lock);
+
         return ret;
 }
 #else /* !SPARSEMEM_EXTREME */