From: Benjamin Redelings I <bredelin@ucla.edu>
To: linux-mm@kvack.org
Subject: Re: pre2 swap_out() changes
Date: Thu, 11 Jan 2001 12:52:49 -0800 [thread overview]
Message-ID: <3A5E1D21.2DDB492C@ucla.edu> (raw)
Does this make sensee,specially, the last two lines?
Maybe 2.4.1-pre3 will shed some light, but I see that Marcelo basically
reverted this in his patch this morning...
- onlist = PageActive(page);
/* Don't look at this pte if it's been accessed recently. */
if (ptep_test_and_clear_young(page_table)) {
- age_page_up(page);
- goto out_failed;
+ page->age += PAGE_AGE_ADV;
+ if (page->age > PAGE_AGE_MAX)
+ page->age = PAGE_AGE_MAX;
+ return;
}
- if (!onlist)
- /* The page is still mapped, so it can't be freeable... */
- age_page_down_ageonly(page);
-
- /*
- * If the page is in active use by us, or if the page
- * is in active use by others, don't unmap it or
- * (worse) start unneeded IO.
- */
- if (page->age > 0)
- goto out_failed;
-BenRI
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next reply other threads:[~2001-01-11 20:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-11 20:52 Benjamin Redelings I [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-01-11 10:38 Marcelo Tosatti
2001-01-11 18:49 ` Linus Torvalds
2001-01-12 11:35 ` Zlatko Calusic
2001-01-12 19:45 ` Linus Torvalds
2001-01-12 19:22 ` Marcelo Tosatti
2001-01-13 0:23 ` Linus Torvalds
2001-01-12 22:41 ` Marcelo Tosatti
2001-01-13 0:45 ` Linus Torvalds
2001-01-17 7:05 ` Rik van Riel
2001-01-18 11:54 ` Rik van Riel
2001-01-13 11:41 ` Zlatko Calusic
2001-01-17 7:08 ` Rik van Riel
2001-01-13 11:51 ` Zlatko Calusic
2001-01-14 2:39 ` Marcelo Tosatti
2001-01-14 4:36 ` Linus Torvalds
2001-01-14 3:50 ` Marcelo Tosatti
2001-01-14 15:51 ` Ed Tomlinson
2001-01-14 14:13 ` Marcelo Tosatti
2001-01-14 16:15 ` Zlatko Calusic
2001-01-14 17:22 ` Zlatko Calusic
2001-01-17 7:16 ` Rik van Riel
2001-01-17 7:15 ` Rik van Riel
2001-01-17 7:12 ` Rik van Riel
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