On Fri, 2006-09-01 at 19:42 +0200, Martin Schwidefsky wrote:
> The problem of page discard vs. normal page remove is that the page can
> be remove and discarded at the same time. Both sides are writers in the
> sense that they want to remove the page from page cache. RCU doesn't not
> help with that kind of race.
OK. It comes down to a race between
__remove_from_page_cache()/__delete_from_swap_cache()
and
__page_discard()
running on the same page at the same time. Right?
-- Dave
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