Re: [PATCH] iomap: remove set_memor_ro() on zero page

Stephen Rothwell
2024-08-27T06:26:06Z

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Hi all,

On Mon, 26 Aug 2024 22:55:39 -0700 "Darrick J. Wong" <djwong@kernel.org> wrote:
>
> On Mon, Aug 26, 2024 at 02:26:32PM -0700, Luis Chamberlain wrote:
> > Stephen reported a boot failure on ppc power8 system where
> > set_memor_ro() on the new zero page failed [0]. Christophe Leroy
> > further clarifies we can't use this on on linear memory on ppc, and
> > so instead of special casing this just for PowerPC [2] remove the
> > call as suggested by Darrick.
> >
> > [0] https://lore.kernel.org/all/20240826175931.1989f99e@canb.auug.org.au/T/#u
> > [1] https://lore.kernel.org/all/b0fe75b4-c1bb-47f7-a7c3-2534b31c1780@csgroup.eu/
> > [2] https://lore.kernel.org/all/ZszrJkFOpiy5rCma@bombadil.infradead.org/
> >
> > Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
> > Suggested-by: "Darrick J. Wong" <djwong@kernel.org>
> > Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
>
> Reviewed-by: Darrick J. Wong <djwong@kernel.org>

I added this to linux-next today, and it seems to have fixed the run
time warning, so

Tested-by: Stephen Rothwell <sfr@canb.auug.org.au>

--
Cheers,
Stephen Rothwell

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