mm, sparse: pass nid instead of pgdat to sparse_add_one_section()

Since the information needed in sparse_add_one_section() is node id to
allocate proper memory, it is not necessary to pass its pgdat.

This patch changes the prototype of sparse_add_one_section() to pass node
id directly.  This is intended to reduce misleading that
sparse_add_one_section() would touch pgdat.

Link: http://lkml.kernel.org/r/20181204085657.20472-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/mm/sparse.c b/mm/sparse.c
index 7323a03fbc39..7ea5dc6c6b19 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -678,8 +678,8 @@ static void free_map_bootmem(struct page *memmap)
  * set.  If this is <=0, then that means that the passed-in
  * map was not consumed and must be freed.
  */
-int __meminit sparse_add_one_section(struct pglist_data *pgdat,
-                unsigned long start_pfn, struct vmem_altmap *altmap)
+int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
+                                     struct vmem_altmap *altmap)
 {
         unsigned long section_nr = pfn_to_section_nr(start_pfn);
         struct mem_section *ms;
@@ -691,11 +691,11 @@ int __meminit sparse_add_one_section(struct pglist_data *pgdat,
          * no locking for this, because it does its own
          * plus, it does a kmalloc
          */
-        ret = sparse_index_init(section_nr, pgdat->node_id);
+        ret = sparse_index_init(section_nr, nid);
         if (ret < 0 && ret != -EEXIST)
                 return ret;
         ret = 0;
-        memmap = kmalloc_section_memmap(section_nr, pgdat->node_id, altmap);
+        memmap = kmalloc_section_memmap(section_nr, nid, altmap);
         if (!memmap)
                 return -ENOMEM;
         usemap = __kmalloc_section_usemap();