CVS commit: [vmlocking] src/sys

[Andrew Doran <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Sun Jul  1 21:37:35 UTC 2007

Modified Files:
        src/sys/kern [vmlocking]: kern_timeout.c
        src/sys/sys [vmlocking]: callout.h

Log Message:
- Alter the callout ABI to be stable in the event of changes to the
  internal data structures.
- Add a flags argument to callout_init(). If CALLOUT_MPSAFE is specified,
  the kernel lock is not taken when the callout is executed.
- Only synchronize with running callouts from callout_stop(). If the
  callout is MP safe, then sleep until it has completed. If it is not
  MP safe (and thus should not block) use the kernel lock to provide
  synchronization. Both need to be verified as deadlock free, but at
  this time I think they are OK.


To generate a diff of this commit:
cvs rdiff -r1.21.4.2 -r1.21.4.3 src/sys/kern/kern_timeout.c
cvs rdiff -r1.23.6.1 -r1.23.6.2 src/sys/sys/callout.h

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