Function sparse_index_init() is used to setup memory section descriptors dynamically. zero should be returned while mem_section[root] already has been allocated. Signed-off-by: Gavin Shan <shangw@xxxxxxxxxxxxxxxxxx> --- mm/sparse.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/mm/sparse.c b/mm/sparse.c index a8b99d3..e845a48 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -109,8 +109,12 @@ static int __meminit sparse_index_init(unsigned long section_nr, int nid) struct mem_section *section; int ret = 0; + /* + * If the corresponding mem_section descriptor + * has been created, we needn't bother + */ if (mem_section[root]) - return -EEXIST; + return ret; section = sparse_index_alloc(nid); if (!section) -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>