svn commit: r326429 - head/sys/kern

[Konstantin Belousov]

Author: kib
Date: Fri Dec  1 11:18:19 2017
New Revision: 326429
URL: https://svnweb.freebsd.org/changeset/base/326429

Log:
  Destroy seltd st_mtx and st_wait in seltdfini().
  
  A correct destruction is important for WITNESS(4) and LOCK_PROFILING(9).
  
  Submitted by:	Sebastian Huber <sebastian.huber at embedded-brains.de>
  MFC after:	1 week

Modified:
  head/sys/kern/sys_generic.c

Modified: head/sys/kern/sys_generic.c
==============================================================================
--- head/sys/kern/sys_generic.c	Fri Dec  1 11:14:13 2017	(r326428)
+++ head/sys/kern/sys_generic.c	Fri Dec  1 11:18:19 2017	(r326429)
@@ -1884,6 +1884,8 @@ seltdfini(struct thread *td)
 	if (stp->st_free2)
 		uma_zfree(selfd_zone, stp->st_free2);
 	td->td_sel = NULL;
+	cv_destroy(&stp->st_wait);
+	mtx_destroy(&stp->st_mtx);
 	free(stp, M_SELECT);
 }