CVS commit: src/sys/kern

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

Module Name:    src
Committed By:   ad
Date:           Wed Mar 14 23:58:24 UTC 2007

Modified Files:
        src/sys/kern: sys_lwp.c

Log Message:
- Remove the LWP counters. The race between park/unpark rarely occurs
  so it's not worth counting.

- lwp_wakeup: set LW_UNPARKED on the target. Ensures that _lwp_park will
  always be awoken even if another system call eats the wakeup, e.g. as a
  result of an intervening signal. To deal with this correctly for other
  system calls will require a different approach.

- _lwp_unpark, _lwp_unpark_all: use setrunnable if the LWP is not parked
  on the same sync queue: (1) simplifies the code a bit as there no point
  doing anything special for this case (2) makes it possible for p_smutex
  to be replaced by p_mutex and (3) restores the guarantee that the 'hint'
  argument really is just a hint.


To generate a diff of this commit:
cvs rdiff -r1.14 -r1.15 src/sys/kern/sys_lwp.c

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