linux-kernel - [GIT PULL] bitmap changes for v6.2-rc1

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Date:   Thu, 15 Dec 2022 15:11:42 -0800
From:   Yury Norov <yury.norov@...il.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Yury Norov <yury.norov@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Tariq Toukan <tariqt@...dia.com>,
        Valentin Schneider <vschneid@...hat.com>,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org
Subject: [GIT PULL] bitmap changes for v6.2-rc1

The following changes since commit 76dcd734eca23168cb008912c0f69ff408905235:

  Linux 6.1-rc8 (2022-12-04 14:48:12 -0800)

are available in the Git repository at:

  git@...hub.com:/norov/linux.git tags/bitmap-6.2-rc1

for you to fetch changes up to 2386459394d2a46964829a00c48a08a23ead94ed:

  lib/cpumask: update comment for cpumask_local_spread() (2022-12-15 14:44:43 -0800)

----------------------------------------------------------------
Hi Linus,

Please pull bitmap patches for v6.2. They spent in -next for more than
a week without any issues. The branch consists of:

- optimize small_const path for find_next_bit() and friends (me);

  Introduces small_const_nbits_off() and uses it in find_next_bit()-like
  functions to allow static optimization when all bits to search are
  withing a word boundary, even if not a 1st word.

- cpumask: improve on cpumask_local_spread() locality (me):

  The series makes cpumask_local_spread() picking Nth CPU based on NUMA
  hop distances, which is better than picking CPUs from a given node and
  if there's no N cpus - from a random node (how it works now).

- sched, net: NUMA-aware CPU spreading interface (Valentin Schneider,
  Tariq Toukan):

  Iterators for NUMA-aware CPUs traversing. Better alternative for
  cpumask_local_spread(), when it's needed to enumerate all CPUs.

Thanks,
Yury

----------------------------------------------------------------
Tariq Toukan (1):
      net/mlx5e: Improve remote NUMA preferences used for the IRQ affinity hints

Valentin Schneider (2):
      sched/topology: Introduce sched_numa_hop_mask()
      sched/topology: Introduce for_each_numa_hop_mask()

Yury Norov (9):
      bitmap: switch from inline to __always_inline
      bitmap: improve small_const case for find_next() functions
      bitmap: add tests for find_next_bit()
      lib/find: introduce find_nth_and_andnot_bit
      cpumask: introduce cpumask_nth_and_andnot
      sched: add sched_numa_find_nth_cpu()
      cpumask: improve on cpumask_local_spread() locality
      lib/cpumask: reorganize cpumask_local_spread() logic
      lib/cpumask: update comment for cpumask_local_spread()

 drivers/net/ethernet/mellanox/mlx5/core/eq.c |  18 ++-
 include/asm-generic/bitsperlong.h            |  12 ++
 include/linux/bitmap.h                       |  46 ++++----
 include/linux/cpumask.h                      | 164 +++++++++++++++------------
 include/linux/find.h                         | 118 +++++++++++--------
 include/linux/nodemask.h                     |  86 +++++++-------
 include/linux/topology.h                     |  33 ++++++
 kernel/sched/topology.c                      |  90 +++++++++++++++
 lib/cpumask.c                                |  52 +++++----
 lib/find_bit.c                               |   9 ++
 lib/test_bitmap.c                            |  23 +++-
 11 files changed, 438 insertions(+), 213 deletions(-)