Re: [PATCH] [13/16] HWPOISON: The high level memory error handler in the VM v4

Nick Piggin
2009-06-01T11:16:51Z

On Fri, May 29, 2009 at 11:35:39PM +0200, Andi Kleen wrote:
> + mapping = page_mapping(p);
> + if (!PageDirty(p) && !PageWriteback(p) &&
> + !PageAnon(p) && !PageSwapBacked(p) &&
> + mapping && mapping_cap_account_dirty(mapping)) {

Haven't had another good look at this yet, but if you hold the
page locked, and have done a wait_on_page_writeback, then
PageWriteback == true is a kernel bug.