Re: [PATCH -next v3 0/3] riscv: Fix two vdso issue

[Palmer Dabbelt]

On Tue, 31 Aug 2021 19:46:18 PDT (-0700), tongtiangen@xxxxxxxxxx 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(-)

Sorry, I thought this was targeted at for-next.  I've put this on fixes 
(not sure if my last copy went out, my mail client crashed).