Jisheng Zhang 648321fa0d

riscv: mm: try VMA lock-based page fault handling first ...

Attempt VMA lock-based page fault handling first, and fall back to the
existing mmap_lock-based handling if that fails.

A simple running the ebizzy benchmark on Lichee Pi 4A shows that
PER_VMA_LOCK can improve the ebizzy benchmark by about 32.68%. In
theory, the more CPUs, the bigger improvement, but I don't have any
HW platform which has more than 4 CPUs.

This is the riscv variant of "x86/mm: try VMA lock-based page fault
handling first".

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Link: https://lore.kernel.org/r/20230523165942.2630-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

2023-06-20 08:10:13 -07:00

..

cacheflush.c

RISC-V Patches for the 6.4 Merge Window, Part 1

2023-04-28 16:55:39 -07:00

context.c

riscv: mm: Fix incorrect ASID argument when flushing TLB

2023-03-21 15:55:19 -07:00

dma-noncoherent.c

RISC-V: Fix compilation without RISCV_ISA_ZICBOM

2022-10-21 11:52:39 +05:30

extable.c

riscv: extable: fix err reg writing in dedicated uaccess handler

2022-02-08 17:02:47 -08:00

fault.c

riscv: mm: try VMA lock-based page fault handling first

2023-06-20 08:10:13 -07:00

hugetlbpage.c

riscv: mm: support Svnapot in hugetlb page

2023-03-07 19:39:16 -08:00

init.c

riscv: mm: Pre-allocate PGD entries for vmalloc/modules area

2023-06-19 17:58:01 -07:00

kasan_init.c

riscv: Rework kasan population functions

2023-04-19 07:24:50 -07:00

Makefile

riscv: mm: stub extable related functions/macros for !MMU

2023-06-14 07:17:45 -07:00

pageattr.c

RISC-V: mm: Enable huge page support to kernel_page_present() function

2023-04-29 11:25:12 -07:00

pgtable.c

riscv: mm: Implement pmdp_collapse_flush for THP

2023-02-01 20:52:09 -08:00

physaddr.c

riscv: Use PUD/P4D/PGD pages for the linear mapping

2023-04-18 20:43:04 -07:00

pmem.c

RISC-V: Implement arch specific PMEM APIs

2022-12-08 15:43:59 -08:00

ptdump.c

riscv: Fix ptdump when KASAN is enabled

2023-04-19 07:24:53 -07:00

tlbflush.c

RISC-V: Use IPIs for remote TLB flush when possible

2023-04-08 11:26:24 +01:00