Date: Fri, 8 Oct 2004 08:23:43 +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 src/sys/amd64/include pmap.h src/sys/i386/i386 pmap.c src/sys/i386/include pmap.h Message-ID: <200410080823.i988NhRD083905@repoman.freebsd.org>
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alc 2004-10-08 08:23:43 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 pmap.c
sys/amd64/include pmap.h
sys/i386/i386 pmap.c
sys/i386/include pmap.h
Log:
Make pte_load_store() an atomic operation in all cases, not just i386 PAE.
Restructure pmap_enter() to prevent the loss of a page modified (PG_M) bit
in a race between processors. (This restructuring assumes the newly atomic
pte_load_store() for correct operation.)
Reviewed by: tegge@
PR: i386/61852
Revision Changes Path
1.508 +20 -7 src/sys/amd64/amd64/pmap.c
1.125 +14 -4 src/sys/amd64/include/pmap.h
1.513 +20 -7 src/sys/i386/i386/pmap.c
1.115 +16 -4 src/sys/i386/include/pmap.h
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