Date: Thu, 30 Aug 2007 02:32:05 +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/vm vm_map.c Message-ID: <200708300232.l7U2W5Te060583@repoman.freebsd.org>
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alc 2007-08-30 02:32:05 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
sys/vm vm_map.c
Log:
MFC revisions 1.375-1.377
Use pmap_enter_object() in vm_map_pmap_enter() to reduce the
locking overhead of premapping objects.
Note: It was later discovered that this change addresses a race condition
that is discussed by vm/vm_fault.c revision 1.216. Specifically, replacing
pmap_enter_quick() by pmap_enter_object() addresses the race.
Revision Changes Path
1.366.2.4 +18 -8 src/sys/vm/vm_map.c
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