Re: [PATCH 2/2 v2] kexec: Export PG_hwpoison flag into vmcoreinfo

Atsushi Kumagai
2013-02-08T08:58:00Z

Hello,

On Wed, 31 Oct 2012 23:05:05 +0900
Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com> wrote:

> This patch exports a PG_hwpoison into vmcoreinfo when
> CONFIG_MEMORY_FAILURE is defined.
> "makedumpfile" needs to read information of memory, such as
> 'mem_section', 'zone', 'pageflags' from vmcore.
>
> We introduce a function into "makedumpfile" to exclude
> hwpoison page from vmcore dump.
> In order to introduce this function, PG_hwpoison flag have
> to export into vmcoreinfo.
>
> Signed-off-by: Mitsuhiro Tanino <mitsuhiro.tanino.gm@hitachi.com>

I'm curious to know the status of this patch because I'll release
makedumpfile-1.5.2 with the feature to exclude hwpoison page soon.

Thanks
Atsushi Kumagai

> ---
> kernel/kexec.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/kernel/kexec.c b/kernel/kexec.c
> index 0668d58..0d5d6bc 100644
> --- a/kernel/kexec.c
> +++ b/kernel/kexec.c
> @@ -1513,6 +1513,9 @@ static int __init crash_save_vmcoreinfo_init(void)
> VMCOREINFO_NUMBER(PG_lru);
> VMCOREINFO_NUMBER(PG_private);
> VMCOREINFO_NUMBER(PG_swapcache);
> +#ifdef CONFIG_MEMORY_FAILURE
> + VMCOREINFO_NUMBER(PG_hwpoison);
> +#endif
>
> arch_crash_save_vmcoreinfo();
> update_vmcoreinfo_note();
> --
> 1.7.10.1
>
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