Date: Wed, 17 Apr 2002 20:28:28 -0700 (PDT) From: Alan Cox <alc@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 trap.c src/sys/vm vm_fault.c Message-ID: <200204180328.g3I3SSS60897@freefall.freebsd.org>
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alc 2002/04/17 20:28:28 PDT
Modified files:
sys/i386/i386 trap.c
sys/vm vm_fault.c
Log:
o Call vm_map_growstack() from vm_fault() if vm_map_lookup() has failed
due to conditions that suggest the possible need for stack growth.
This has two beneficial effects: (1) we can
now remove calls to vm_map_growstack() from the MD trap handlers and (2)
simple page faults are faster because we no longer unnecessarily perform
vm_map_growstack() on every page fault.
o Remove vm_map_growstack() from the i386's trap_pfault().
o Remove the acquisition and release of Giant from i386's trap_pfault().
(vm_fault() still acquires it.)
Revision Changes Path
1.222 +2 -17 src/sys/i386/i386/trap.c
1.135 +10 -1 src/sys/vm/vm_fault.c
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