Re: [RFC PATCH 8/8] Revert "percpu: free percpu allocation info for uniprocessor system"

From: Mikael Starvik
Date: Sun Sep 21 2014 - 13:23:52 EST


Thanks for all your work with CRIS! CRISv10 is alive but is currently used as small helper CPUs close to hardware blocks.

Jesper will review and ack.

> 21 sep 2014 kl. 18:27 skrev "Guenter Roeck" <linux@xxxxxxxxxxxx>:
>
> This reverts commit 3189eddbcafcc4d827f7f19facbeddec4424eba8.
>
> The commit causes a hang with a crisv32 image. This may be an architecture
> problem, but at least for now the revert is necessary to be able to boot a
> crisv32 image.
>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> mm/percpu.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/mm/percpu.c b/mm/percpu.c
> index da997f9..2139e30 100644
> --- a/mm/percpu.c
> +++ b/mm/percpu.c
> @@ -1932,8 +1932,6 @@ void __init setup_per_cpu_areas(void)
>
> if (pcpu_setup_first_chunk(ai, fc) < 0)
> panic("Failed to initialize percpu areas.");
> -
> - pcpu_free_alloc_info(ai);
> }
>
> #endif /* CONFIG_SMP */
> --
> 1.9.1
>
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