git: kernel - Move grow_stack code in fault path to improve faul
commit 8d496bf981b2cacb9c21ccdb66a9991978c986ea
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon Mar 1 16:09:41 2010 -0800
kernel - Move grow_stack code in fault path to improve fault performance
* grow_stack() calls were being performed unconditionally during a
page fault. Shift the code over to vm_fault() and only run it if
the vm_map_lookup() call fails.
* Also take this opportunity to remove trapwrite() (added by Matt).
Submitted-by: Venkatesh Srinivas <me@endeavour.zapto.org>
Summary of changes:
sys/emulation/linux/i386/linux_sysvec.c | 4 +-
sys/platform/pc32/i386/trap.c | 60 ------------------------------
sys/platform/pc32/i386/vm_machdep.c | 12 ------
sys/platform/pc64/x86_64/trap.c | 15 --------
sys/platform/pc64/x86_64/vm_machdep.c | 12 ------
sys/platform/vkernel/i386/trap.c | 61 -------------------------------
sys/platform/vkernel/i386/vm_machdep.c | 12 ------
sys/vm/vm_extern.h | 1 -
sys/vm/vm_fault.c | 19 ++++++++--
9 files changed, 17 insertions(+), 179 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8d496bf981b2cacb9c21ccdb66a9991978c986ea
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