mm: memcontrol: use node page state naming scheme for memcg

The memory controllers stat function names are awkwardly long and
arbitrarily different from the zone and node stat functions.

The current interface is named:

  mem_cgroup_read_stat()
  mem_cgroup_update_stat()
  mem_cgroup_inc_stat()
  mem_cgroup_dec_stat()
  mem_cgroup_update_page_stat()
  mem_cgroup_inc_page_stat()
  mem_cgroup_dec_page_stat()

This patch renames it to match the corresponding node stat functions:

  memcg_page_state()		[node_page_state()]
  mod_memcg_state()		[mod_node_state()]
  inc_memcg_state()		[inc_node_state()]
  dec_memcg_state()		[dec_node_state()]
  mod_memcg_page_state()	[mod_node_page_state()]
  inc_memcg_page_state()	[inc_node_page_state()]
  dec_memcg_page_state()	[dec_node_page_state()]

Link: http://lkml.kernel.org/r/20170404220148.28338-4-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 777711203809..2359608d2568 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2427,7 +2427,7 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
                 inode_attach_wb(inode, page);
                 wb = inode_to_wb(inode);
 
-                mem_cgroup_inc_page_stat(page, NR_FILE_DIRTY);
+                inc_memcg_page_state(page, NR_FILE_DIRTY);
                 __inc_node_page_state(page, NR_FILE_DIRTY);
                 __inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
                 __inc_node_page_state(page, NR_DIRTIED);
@@ -2449,7 +2449,7 @@ void account_page_cleaned(struct page *page, struct address_space *mapping,
                           struct bdi_writeback *wb)
 {
         if (mapping_cap_account_dirty(mapping)) {
-                mem_cgroup_dec_page_stat(page, NR_FILE_DIRTY);
+                dec_memcg_page_state(page, NR_FILE_DIRTY);
                 dec_node_page_state(page, NR_FILE_DIRTY);
                 dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
                 dec_wb_stat(wb, WB_RECLAIMABLE);
@@ -2706,7 +2706,7 @@ int clear_page_dirty_for_io(struct page *page)
                  */
                 wb = unlocked_inode_to_wb_begin(inode, &locked);
                 if (TestClearPageDirty(page)) {
-                        mem_cgroup_dec_page_stat(page, NR_FILE_DIRTY);
+                        dec_memcg_page_state(page, NR_FILE_DIRTY);
                         dec_node_page_state(page, NR_FILE_DIRTY);
                         dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
                         dec_wb_stat(wb, WB_RECLAIMABLE);
@@ -2753,7 +2753,7 @@ int test_clear_page_writeback(struct page *page)
                 ret = TestClearPageWriteback(page);
         }
         if (ret) {
-                mem_cgroup_dec_page_stat(page, NR_WRITEBACK);
+                dec_memcg_page_state(page, NR_WRITEBACK);
                 dec_node_page_state(page, NR_WRITEBACK);
                 dec_zone_page_state(page, NR_ZONE_WRITE_PENDING);
                 inc_node_page_state(page, NR_WRITTEN);
@@ -2808,7 +2808,7 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
                 ret = TestSetPageWriteback(page);
         }
         if (!ret) {
-                mem_cgroup_inc_page_stat(page, NR_WRITEBACK);
+                inc_memcg_page_state(page, NR_WRITEBACK);
                 inc_node_page_state(page, NR_WRITEBACK);
                 inc_zone_page_state(page, NR_ZONE_WRITE_PENDING);
         }