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Date:   Sat, 02 Oct 2021 13:24:30 -0700 (PDT)
Subject:     Re: [PATCH -next v3 0/3] riscv: Fix two vdso issue
In-Reply-To: <20210901024621.2528797-1-tongtiangen@huawei.com>
CC:     Paul Walmsley <paul.walmsley@sifive.com>, aou@eecs.berkeley.edu,
        abdulras@google.com, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org
From:   Palmer Dabbelt <palmer@dabbelt.com>
To:     tongtiangen@huawei.com
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On Tue, 31 Aug 2021 19:46:18 PDT (-0700), tongtiangen@huawei.com 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).