Re: [PATCH] RISC-V: Acquire mmap lock before invoking walk_page_range

From: Zong Li
Date: Wed Jun 17 2020 - 22:29:23 EST


On Thu, Jun 18, 2020 at 8:01 AM Michel Lespinasse <walken@xxxxxxxxxx> wrote:
>
> On Wed, Jun 17, 2020 at 1:38 PM Atish Patra <atish.patra@xxxxxxx> wrote:
> > As per walk_page_range documentation, mmap lock should be acquired by the
> > caller before invoking walk_page_range. mmap_assert_locked gets triggered
> > without that. The details can be found here.
> >
> > http://lists.infradead.org/pipermail/linux-riscv/2020-June/010335.html
> >
> > Fixes: 395a21ff859c(riscv: add ARCH_HAS_SET_DIRECT_MAP support)
> > Signed-off-by: Atish Patra <atish.patra@xxxxxxx>
>
> Thanks for the fix.
>
> Reviewed-by: Michel Lespinasse <walken@xxxxxxxxxx>

It also looks good to me. Thanks for the fix.

Reviewed-by: Zong Li <zong.li@xxxxxxxxxx>