mbox series

[V3,0/4] riscv: mm: Fixup & Optimize COMPAT code

Message ID 20231222115703.2404036-1-guoren@kernel.org
Headers
Series riscv: mm: Fixup & Optimize COMPAT code |

Message

Guo Ren Dec. 22, 2023, 11:56 a.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:
v3:
 - Remove wrong modification of arch_get_mmap_end
 - Remove is_compat_task optimization
 - Update comment log

v2:
https://lore.kernel.org/linux-riscv/20231221154702.2267684-1-guoren@kernel.org/
 - 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   | 7 +++----
 arch/riscv/include/asm/processor.h | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

Comments

patchwork-bot+linux-riscv@kernel.org Jan. 12, 2024, 6:30 a.m. UTC | #1 
Hello:

This series was applied to riscv/linux.git (for-next)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Fri, 22 Dec 2023 06:56:59 -0500 you wrote:
> 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.
> 
> [...]

Here is the summary with links:
  - [V3,1/4] riscv: mm: Fixup compat mode boot failure
    https://git.kernel.org/riscv/c/5f449e245e5b
  - [V3,2/4] riscv: mm: Fixup compat arch_get_mmap_end
    https://git.kernel.org/riscv/c/97b7ac69be2e
  - [V3,3/4] riscv: mm: Remove unused TASK_SIZE_MIN
    (no matching commit)
  - [V3,4/4] riscv: mm: Optimize TASK_SIZE definition
    (no matching commit)

You are awesome, thank you!