Re: page_launder() bug

[David S. Miller]

Linus Torvalds writes:
 > My most favourite approach by far is to just remove the magic for
 > different writepage's altogether, and just unconditionally do a
 > writepage. But passing in enough information so that the writepage can
 > come to the right decision.
 ...
 > In fact, it might even clean stuff up. Who knows? At least
 > page_launder() would not need to know about magic dead swap pages, because
 > the decision would be entirely in writepage().

Sure this would work.

The only downside would be that the formerly "quick case" in the loop
of dealing with referenced pages would now need to go inside the page
lock.  It's probably a non-issue...

Later,
David S. Miller
[e-mail]