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    SubjectRE: [PATCH] HWPOISON: Implement hwpoison-on-free for soft offlining
    Date
    > From: Andi Kleen [mailto:andi@firstfloor.org]
    > Sent: 12. lokakuuta 2010 17:30
    > To: Penttilä Mika
    > Cc: Andi Kleen; linux-kernel@vger.kernel.org
    > Subject: Re: [PATCH] HWPOISON: Implement hwpoison-on-free for soft
    > offlining
    >
    > On Tue, Oct 12, 2010 at 02:23:15PM +0000, Penttilä Mika wrote:
    > > > >> bad_page(page);
    > > > >> return 1;
    > > > >> }
    > > > >
    > > > > And of course PAGE_FLAGS_CHECK_AT_FREE should include
    > > > > pahehwpoisononfree this to be effective
    > > >
    > > > It is of course (__PG_HWPOISON_ON_FREE)
    > > >
    > > Yes but it's not included in PAGE_FLAGS_CHECK_AT_FREE, if I'm not
    > missing something
    >
    > #ifdef CONFIG_HWPOISON_ON_FREE
    > PAGEFLAG(HWPoisonOnFree, hwpoison_on_free)
    > TESTSCFLAG(HWPoisonOnFree, hwpoison_on_free)
    > #define __PG_HWPOISON_ON_FREE (1UL << PG_hwpoison_on_free)
    > #else
    > PAGEFLAG_FALSE(HWPoisonOnFree)
    > SETPAGEFLAG_NOOP(HWPoisonOnFree)
    > #define __PG_HWPOISON_ON_FREE 0
    > #endif
    >
    > ...
    >
    > #define PAGE_FLAGS_CHECK_AT_FREE \
    > (1 << PG_lru | 1 << PG_locked | \
    > 1 << PG_private | 1 << PG_private_2 | \
    > 1 << PG_buddy | 1 << PG_writeback | 1 << PG_reserved | \
    > 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \
    > 1 << PG_unevictable | __PG_MLOCKED | __PG_HWPOISON | \
    > __PG_HWPOISON_ON_FREE)
    >
    >
    > -Andi
    > --
    > ak@linux.intel.com -- Speaking for myself only.



    Sure, sorry for that, read the patch badly..

    --Mika



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