K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2001-06-25T23:17:52.000000Z
K 7
svn:log
V 801
- Move the 'clk' spinlock below other spin locks since KTR trace events
  may need the clock lock for nanotime().
- Add KTR trace events for lock list manipulations and other witness
  operations.
- Use a temporary variable instead of setting the lock list head directly
  and then setting up the links to add a new lock list entry to the lock
  list.  This small race could result in witness "forgetting" about all
  the locks held by this process temporarily during an interrupt.
- Close a more fatal race condition when removing a lock from a list.
  Removing a lock from the list entails both decrementing the count of
  items in this bucket as well as shuffling items in the current bucket up
  a notch to replace the gap left by the removed item.  Wrap these
  operations in a critical section.

END