(2012/07/12 2:02), Johannes Weiner wrote:

Not all uncharge paths need to check if the page is swapcache, some of
them can know for sure.

Push down the check into all callsites of uncharge_common() so that
the patch that removes some of them is more obvious.

Signed-off-by: Johannes Weiner <redacted>
Acked-by: Michal Hocko <redacted>

Acked-by: KAMEZAWA Hiroyuki <redacted>