Re: [PATCH -next v3 0/3] riscv: Fix two vdso issue
From: Liu Shixin
Date: Mon Sep 27 2021 - 22:20:10 EST
On 2021/9/1 10:46, Tong Tiangen wrote:
> v3->v2:
> Adapt to the latest code.
>
> v2->v1:
> Add patch "Refactor asm/vdso.h" to avoid vdso.lds syntax error if
> CONFIG_GENERIC_TIME_VSYSCALL=n.
>
> 1) Move vdso data page up front and introduce enum vvar_pages, This makes it
> easier to introduce new feature TIME_NS.
>
> 2) In arch_setup_additional_pages(), make Wait for the lock in the killable mode
> and return with EINTR if the task got killed while waiting.
>
> Tong Tiangen (3):
> riscv/vdso: Refactor asm/vdso.h
> riscv/vdso: Move vdso data page up front
> riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for
> write killable
>
> arch/riscv/include/asm/syscall.h | 1 +
> arch/riscv/include/asm/vdso.h | 15 ++++-----
> arch/riscv/kernel/syscall_table.c | 1 -
> arch/riscv/kernel/vdso.c | 53 +++++++++++++++++++------------
> arch/riscv/kernel/vdso/vdso.lds.S | 3 +-
> 5 files changed, 42 insertions(+), 31 deletions(-)
>
Test-by: Liu Shixin <liushixin2@xxxxxxxxxx>