CVS commit: src/sys/arch/i386/i386

[YAMAMOTO Takashi <yamt%netbsd.org@localhost>]

Module Name:    src
Committed By:   yamt
Date:           Tue Dec 30 03:55:01 UTC 2003

Modified Files:
        src/sys/arch/i386/i386: pmap.c

Log Message:
fixes and optimizations from Stephan Uphoff.
- pmap_enter: zap PTE and read attributes atomically to
  eliminate a race window which could cause lost of attributes.
- reduce number of TLB shootdown by using some assumptions
  about PTE handling.

for more details, see "SMP improvements for pmap" thread on port-i386@
around May 2003.


To generate a diff of this commit:
cvs rdiff -r1.167 -r1.168 src/sys/arch/i386/i386/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.