Date: Sat, 24 Jul 2004 07:40:36 +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 vm_map.h Message-ID: <200407240740.i6O7ea9P082332@repoman.freebsd.org>
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alc 2004-07-24 07:40:36 UTC
FreeBSD src repository
Modified files:
sys/vm vm_map.c vm_map.h
Log:
Simplify vmspace initialization. The bcopy() of fields from the old
vmspace to the new vmspace in vmspace_exec() is mostly wasted effort. With
one exception, vm_swrss, the copied fields are immediately overwritten.
Instead, initialize these fields to zero in vmspace_alloc(), eliminating a
bcopy() from vmspace_exec() and a bzero() from vmspace_fork().
Revision Changes Path
1.345 +8 -11 src/sys/vm/vm_map.c
1.112 +0 -3 src/sys/vm/vm_map.h
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