[PATCH mm-unstable v1 0/5] mm/swap: remove boilerplate

[Yu Zhao <yuzhao@google.com>]

Use folio_activate() as an example:

Before this series
------------------
    if (!folio_test_active(folio) && !folio_test_unevictable(folio)) {
      struct folio_batch *fbatch;

      folio_get(folio);
      if (!folio_test_clear_lru(folio)) {
        folio_put(folio);
        return;
      }

      local_lock(&cpu_fbatches.lock);
      fbatch = this_cpu_ptr(&cpu_fbatches.activate);
      folio_batch_add_and_move(fbatch, folio, folio_activate_fn);
      local_unlock(&cpu_fbatches.lock);
    }
  }

After this series
-----------------
  void folio_activate(struct folio *folio)
  {
    if (folio_test_active(folio) || folio_test_unevictable(folio))
      return;
  
    folio_batch_add_and_move(folio, lru_activate, true);
  }

And this is applied to all 6 folio_batch handlers in mm/swap.c.

bloat-o-meter
-------------
  add/remove: 12/13 grow/shrink: 3/2 up/down: 4653/-4721 (-68)
  ...
  Total: Before=28083019, After=28082951, chg -0.00%

Yu Zhao (5):
  mm/swap: reduce indentation level
  mm/swap: rename cpu_fbatches->activate
  mm/swap: fold lru_rotate into cpu_fbatches
  mm/swap: remove remaining _fn suffix
  mm/swap: remove boilerplate

 mm/swap.c | 296 ++++++++++++++++++++++++------------------------------
 1 file changed, 134 insertions(+), 162 deletions(-)

-- 
2.45.2.803.g4e1b14247a-goog