- Merge the pgrpsess_lock and proctree_lock sx locks into one proctree_lock

  sx lock.  Trying to get the lock order between these locks was getting
  too complicated as the locking in wait1() was being fixed.
- leavepgrp() now requires an exclusive lock of proctree_lock to be held
  when it is called.
- fixjobc() no longer gets a shared lock of proctree_lock now that it
  requires an xlock be held by the caller.
- Locking notes in sys/proc.h are adjusted to note that everything that
  used to be protected by the pgrpsess_lock is now protected by the
  proctree_lock.

1 files changed, 0 insertions, 1 deletions

diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c
index 75d8d55..e503515 100644
--- a/sys/kern/subr_witness.c
+++ b/sys/kern/subr_witness.c
@@ -187,7 +187,6 @@ static struct lock_list_entry w_locklistdata[LOCK_CHILDCOUNT];
 
 static struct witness_order_list_entry order_lists[] = {
 	{ "Giant", &lock_class_mtx_sleep },
-	{ "pgrpsess", &lock_class_sx },
 	{ "proctree", &lock_class_sx },
 	{ "allproc", &lock_class_sx },
 	{ "process group", &lock_class_mtx_sleep },