Re: [PATCH 09/16] sparc64: use the generic get_user_pages_fast code

[Mikael Pettersson]

For the record the futex test case OOPSes a 5.3-rc3 kernel running on
a Sun Blade 2500 (2 x USIIIi).  This system runs a custom distro with
a custom toolchain (gcc-8.3 based), so I doubt it's a distro problem.

On Sat, Aug 10, 2019 at 9:17 AM Christoph Hellwig <hch@xxxxxx> wrote:
>
> There isn't really a way to use an arch-specific get_user_pages_fast
> in mainline, you'd need to revert the whole series.  As a relatively
> quick workaround you can just remove the
>
>         select HAVE_FAST_GUP if SPARC64
>
> line from arch/sparc/Kconfig