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From: Mateusz Guzik <mjg@FreeBSD.org>
Date: Thu, 16 Mar 2017 08:40:47 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r315399 - stable/11/sys/kern
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Author: mjg
Date: Thu Mar 16 08:40:47 2017
New Revision: 315399
URL: https://svnweb.freebsd.org/changeset/base/315399

Log:
  MFC r312723:
  
  proc: perform a lockless check in sys_issetugid

Modified:
  stable/11/sys/kern/kern_prot.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/kern/kern_prot.c
==============================================================================
--- stable/11/sys/kern/kern_prot.c	Thu Mar 16 08:39:36 2017	(r315398)
+++ stable/11/sys/kern/kern_prot.c	Thu Mar 16 08:40:47 2017	(r315399)
@@ -1230,9 +1230,7 @@ sys_issetugid(register struct thread *td
 	 * a user without an exec - programs cannot know *everything*
 	 * that libc *might* have put in their data segment.
 	 */
-	PROC_LOCK(p);
 	td->td_retval[0] = (p->p_flag & P_SUGID) ? 1 : 0;
-	PROC_UNLOCK(p);
 	return (0);
 }