Date: Fri, 13 Jun 2008 19:33:56 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/amd64/amd64 pmap.c Message-ID: <200806131934.m5DJY4Xc010670@repoman.freebsd.org>
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alc 2008-06-13 19:33:56 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 pmap.c
Log:
SVN rev 179777 on 2008-06-13 19:33:56Z by alc
Tweak the promotion test in pmap_promote_pde(). Specifically, test PG_A
before PG_M. This sometimes prevents unnecessary removal of write access
from a PTE. Overall, the net result is fewer demotions and promotion
failures.
Revision Changes Path
1.621 +4 -5 src/sys/amd64/amd64/pmap.c
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