Replace bitmap_for_each_bit_region() with for_each_set_bitrange()
and ~30 times improve bitmap_list_string() with new macro.

On top of:
https://lore.kernel.org/lkml/YNp3extAkTY8Aocd@yury-ThinkPad/T/ (local) and
https://lore.kernel.org/lkml/YNirnaYw1GSxg1jK@yury-ThinkPad/T/ (local)

The full series is here:
https://github.com/norov/linux/commits/bitmap-20210716

v1: https://lore.kernel.org/patchwork/patch/1455255/
v2: - replace bitmap_for_each_bit_region();
    - address comments for bitmap_list_string() rework. 

Yury Norov (4):
  mm/percpu: micro-optimize pcpu_is_populated()
  bitmap: unify find_bit operations
  lib: bitmap: add performance test for bitmap_print_to_pagebuf
  vsprintf: rework bitmap_list_string

 drivers/mmc/host/renesas_sdhi_core.c |  2 +-
 include/linux/bitmap.h               | 41 --------------------
 include/linux/find.h                 | 56 ++++++++++++++++++++++++++++
 lib/test_bitmap.c                    | 37 ++++++++++++++++++
 lib/vsprintf.c                       | 24 ++++--------
 mm/percpu.c                          | 35 ++++++++---------
 6 files changed, 117 insertions(+), 78 deletions(-)

-- 
2.30.2