Date: Fri, 22 Jan 2010 20:52:31 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/amd64 pmap.c Message-ID: <201001222052.o0MKqfp2016578@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
jhb 2010-01-22 20:52:31 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/amd64/amd64 pmap.c
Log:
SVN rev 202836 on 2010-01-22 20:52:31Z by jhb
MFC 189610:
Eliminate the last use of the recursive mapping to access user-space page
table pages. Now, all accesses to user-space page table pages are
performed through the direct map. (The recursive mapping is only used
to access kernel-space page table pages.)
Eliminate the TLB invalidation on the recursive mapping when a user-space
page table page is removed from the page table and when a user-space
superpage is demoted.
Revision Changes Path
1.590.2.30 +12 -27 src/sys/amd64/amd64/pmap.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201001222052.o0MKqfp2016578>