Add a new mtx_init option "MTX_DUPOK" which allows duplicate acquires of locks

with this flag.  Remove the dup_list and dup_ok code from subr_witness.  Now
we just check for the flag instead of doing string compares.

Also, switch the process lock, process group lock, and uma per cpu locks over
to this interface.  The original mechanism did not work well for uma because
per cpu lock names are unique to each zone.

Approved by:	jhb

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c
index 5e96a40..2beb62d 100644
--- a/sys/sparc64/sparc64/machdep.c
+++ b/sys/sparc64/sparc64/machdep.c
@@ -328,7 +328,7 @@ sparc64_init(caddr_t mdp, u_long o1, u_long o2, u_long o3, ofw_vec_t *vec)
 	 */
 	mtx_init(&sched_lock, "sched lock", MTX_SPIN | MTX_RECURSE);
 	mtx_init(&Giant, "Giant", MTX_DEF | MTX_RECURSE);
-	mtx_init(&proc0.p_mtx, "process lock", MTX_DEF);
+	mtx_init(&proc0.p_mtx, "process lock", MTX_DEF|MTX_DUPOK);
 	intr_init2();
 
 	mtx_lock(&Giant);