mbox series

[V2,0/4] riscv: mm: Fixup & Optimize COMPAT code

Message ID 20231221154702.2267684-1-guoren@kernel.org (mailing list archive)
Headers show
Series riscv: mm: Fixup & Optimize COMPAT code | expand

Message

Guo Ren Dec. 21, 2023, 3:46 p.m. UTC 
From: Guo Ren <guoren@linux.alibaba.com>

When the task is in COMPAT mode, the TASK_SIZE should be 2GB, so
STACK_TOP_MAX and arch_get_mmap_end must be limited to 2 GB. This series
fixes the problem made by commit: add2cc6b6515 ("RISC-V: mm: Restrict
address space for sv39,sv48,sv57") and optimizes the related coding
convention of TASK_SIZE.

Changelog:
v2:
 - Separate rename from fixup
 - Add STACK_TOP_MAX fixup for compat
 - Add Cleanup & rename patches

v1:
https://lore.kernel.org/linux-riscv/20231219111701.1886903-1-guoren@kernel.org/

Guo Ren (4):
  riscv: mm: Fixup compat mode boot failure
  riscv: mm: Fixup compat arch_get_mmap_end
  riscv: mm: Remove unused TASK_SIZE_MIN
  riscv: mm: Optimize TASK_SIZE definition

 arch/riscv/include/asm/pgtable.h   | 9 ++++-----
 arch/riscv/include/asm/processor.h | 6 ++----
 2 files changed, 6 insertions(+), 9 deletions(-)