[GIT PULL] percpu changes for v6.8-rc1

[Dennis Zhou]

Hi Linus,

This enables the percpu page allocator for risc-v as a fallback path.

Separately, I just sent out a respin of Thomas' cpu hotplug related fixes
for percpu_counters in [1]. I'll hopefully pull that in shortly and get
it into for-next for some wider testing.

[1] https://lore.kernel.org/lkml/cover.1705101789.git.dennis@xxxxxxxxxx/

Thanks,
Dennis

The following changes since commit 33cc938e65a98f1d29d0a18403dbbee050dcad9a:

  Linux 6.7-rc4 (2023-12-03 18:52:56 +0900)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git tags/percpu-for-6.8

for you to fetch changes up to 6b9f29b81b155af023da95f560f738f29722b306:

  riscv: Enable pcpu page first chunk allocator (2023-12-14 00:24:06 -0800)

----------------------------------------------------------------
percpu:
- Enable percpu page allocator for risc-v. There are risc-v
  configurations with sparse NUMA configurations and small vmalloc
  space causing dynamic percpu allocations to fail as the backing chunk
  stride is too far apart.

----------------------------------------------------------------
Alexandre Ghiti (2):
      mm: Introduce flush_cache_vmap_early()
      riscv: Enable pcpu page first chunk allocator

 arch/arc/include/asm/cacheflush.h      | 1 +
 arch/arm/include/asm/cacheflush.h      | 2 ++
 arch/csky/abiv1/inc/abi/cacheflush.h   | 1 +
 arch/csky/abiv2/inc/abi/cacheflush.h   | 1 +
 arch/m68k/include/asm/cacheflush_mm.h  | 1 +
 arch/mips/include/asm/cacheflush.h     | 2 ++
 arch/nios2/include/asm/cacheflush.h    | 1 +
 arch/parisc/include/asm/cacheflush.h   | 1 +
 arch/riscv/Kconfig                     | 2 ++
 arch/riscv/include/asm/cacheflush.h    | 3 ++-
 arch/riscv/include/asm/tlbflush.h      | 1 +
 arch/riscv/mm/kasan_init.c             | 8 ++++++++
 arch/riscv/mm/tlbflush.c               | 5 +++++
 arch/sh/include/asm/cacheflush.h       | 1 +
 arch/sparc/include/asm/cacheflush_32.h | 1 +
 arch/sparc/include/asm/cacheflush_64.h | 1 +
 arch/xtensa/include/asm/cacheflush.h   | 6 ++++--
 include/asm-generic/cacheflush.h       | 6 ++++++
 mm/percpu.c                            | 8 +-------
 19 files changed, 42 insertions(+), 10 deletions(-)