Date: Sun, 9 May 2010 16:27:42 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/vm swap_pager.c Message-ID: <201005091627.o49GRoeg017832@repoman.freebsd.org>
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alc 2010-05-09 16:27:42 UTC
FreeBSD src repository
Modified files:
sys/vm swap_pager.c
Log:
SVN rev 207822 on 2010-05-09 16:27:42Z by alc
Call vm_page_deactivate() rather than vm_page_dontneed() in
swp_pager_force_pagein(). By dirtying the page, swp_pager_force_pagein()
forces vm_page_dontneed() to insert the page at the head of the inactive
queue, just like vm_page_deactivate() does. Moreover, because the page
was invalid, it can't have been mapped, and thus the other effect of
vm_page_dontneed(), clearing the page's reference bits has no effect. In
summary, there is no reason to call vm_page_dontneed() since its effect
will be identical to calling the simpler vm_page_deactivate().
Revision Changes Path
1.321 +2 -4 src/sys/vm/swap_pager.c
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