From: Andrew Morton <akpm@zip.com.au>
To: lkml <linux-kernel@vger.kernel.org>
Subject: aa-200-active_page_swapout
Date: Tue, 19 Mar 2002 20:03:29 -0800 [thread overview]
Message-ID: <3C980A11.AD5A7660@zip.com.au> (raw)
Last one.
Don't bother checking for active pages in the swapout path.
Not sure about this one. Clearly the page isn't *likely* to be on the
active list, because the caller found it on the inactive list. But I
don't see any locking which would prevent the page from getting bumped
up to the active list in the meanwhile.
Needs more explanation.
=====================================
--- 2.4.19-pre3/mm/vmscan.c~aa-200-active_page_swapout Tue Mar 19 19:49:04 2002
+++ 2.4.19-pre3-akpm/mm/vmscan.c Tue Mar 19 19:49:04 2002
@@ -83,10 +83,6 @@ static inline int try_to_swap_out(struct
return 0;
}
- /* Don't bother unmapping pages that are active */
- if (PageActive(page))
- return 0;
-
/* Don't bother replenishing zones not under pressure.. */
if (!memclass(page_zone(page), classzone))
return 0;
-
next reply other threads:[~2002-03-20 4:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-20 4:03 Andrew Morton [this message]
2002-03-20 13:50 ` aa-200-active_page_swapout Rik van Riel
2002-03-20 19:24 ` aa-200-active_page_swapout Andrew Morton
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