kernel - Use unused thread_t field for lock tracker.
authorMatthew Dillon <dillon@apollo.backplane.com>
Wed, 2 Sep 2015 00:49:13 +0000 (17:49 -0700)
committerMatthew Dillon <dillon@apollo.backplane.com>
Wed, 2 Sep 2015 00:49:13 +0000 (17:49 -0700)
commitd0e9385d609dcd48637f7ba54b43465f1deb4aba
tree09da77ca5db33ea1e55722a129daaf57fc659dc6
parentd3326291c992ac1ede577987d0292653ea0bbafc
kernel - Use unused thread_t field for lock tracker.

* Repurpose an unused struct thread field to add td_tracker.  Structure
  size does not change.  Used for debugging only.
sys/sys/thread.h