o Don't add a scope system thread's KSE to the list of available

  KSEs when it's thread exits; allow the GC handler to do that.

o Make spinlock/spinlock critical regions.

The following were submitted by davidxu

  o Alow thr_switch() to take a null mailbox argument.

  o Better protect cancellation checks.

  o Don't set KSE specific data when creating new KSEs; rely on the
    first upcall of the KSE to set it.

  o Add the ability to set the maximum concurrency level and do this
    automatically.  We should have a way to enable/disable this with
    some sort of tunable because some applications may not want this
    to be the default.

  o Hold the scheduling lock across thread switch calls.

  o If scheduling of a thread fails, make sure to remove it from the list
    of active threads.

  o Better protect accesses to a joining threads when the target thread is
    exited and detached.

  o Remove some macro definitions that are now provided by <sys/kse.h>.

  o Don't leave the library in threaded mode if creation of the initial
    KSE fails.

  o Wakeup idle KSEs when there are threads ready to run.

  o Maintain the number of threads active in the priority queue.

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/libkse/thread/thr_create.c b/lib/libkse/thread/thr_create.c
index deb26de..4c65d3c 100644
--- a/lib/libkse/thread/thr_create.c
+++ b/lib/libkse/thread/thr_create.c
@@ -297,6 +297,13 @@ _pthread_create(pthread_t * thread, const pthread_attr_t * attr,
 			 * pair if necessary.
 			 */
 			ret = _thr_schedule_add(curthread, new_thread);
+			if (ret != 0) {
+				KSE_LOCK_ACQUIRE(curthread->kse,
+				    &_thread_list_lock);
+				THR_LIST_REMOVE(new_thread);
+				KSE_LOCK_RELEASE(curthread->kse,
+				    &_thread_list_lock);
+			}
 			_kse_critical_leave(crit);
 			if (ret != 0)
 				free_thread(curthread, new_thread);