Date: Thu, 3 Sep 2009 13:54:58 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/amd64 pmap.c src/sys/i386/i386 pmap.c src/sys/i386/include pmap.h Message-ID: <200909031355.n83Dtoi7075898@repoman.freebsd.org>
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jhb 2009-09-03 13:54:58 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/amd64/amd64 pmap.c
sys/i386/i386 pmap.c
sys/i386/include pmap.h
Log:
SVN rev 196780 on 2009-09-03 13:54:58Z by jhb
MFC 196705 and 196707:
- Improve pmap_change_attr() on i386 so that it is able to demote a large
(2/4MB) page into 4KB pages as needed. This should be fairly rare in
practice.
- Simplify pmap_change_attr() a bit:
- Always calculate the cache bits instead of doing it on-demand.
- Always set changed to TRUE rather than only doing it if it is false.
Approved by: re (kib)
Revision Changes Path
1.667.2.4 +5 -17 src/sys/amd64/amd64/pmap.c
1.645.2.3 +170 -54 src/sys/i386/i386/pmap.c
1.140.2.2 +4 -0 src/sys/i386/include/pmap.h
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