Re: [RFC][PATCH] HWPOISON: remove the unsafe __set_page_locked()

Andi Kleen
2009-09-28T01:19:44Z

> There is no real rush AFAIKS to fix this one single pagecache site
> while we have problems with slab allocators and all other unaudited
> places that nonatomically modify page flags with an elevated

hwpoison ignores slab pages.

> page reference ... just mark HWPOISON as broken for the moment, or
> cut it down to do something much simpler I guess?

Erm no. These cases are *EXTREMLY* unlikely to hit.

I'll look into exploiting the ordering of the mapping assignment.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.