svn commit: r297305 - stable/10/sys/compat/linux

[Dmitry Chagin]

Author: dchagin
Date: Sun Mar 27 06:55:49 2016
New Revision: 297305
URL: https://svnweb.freebsd.org/changeset/base/297305

Log:
  MFC r296501:
  
  Link the newly created process to the corresponding parent as
  if CLONE_PARENT is set, then the parent of the new process will be
  the same as that of the calling process.

Modified:
  stable/10/sys/compat/linux/linux_fork.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/compat/linux/linux_fork.c
==============================================================================
--- stable/10/sys/compat/linux/linux_fork.c	Sun Mar 27 06:52:40 2016	(r297304)
+++ stable/10/sys/compat/linux/linux_fork.c	Sun Mar 27 06:55:49 2016	(r297305)
@@ -213,6 +213,18 @@ linux_clone_proc(struct thread *td, stru
 	if (args->flags & LINUX_CLONE_SETTLS)
 		linux_set_cloned_tls(td2, args->tls);
 
+	/*
+	 * If CLONE_PARENT is set, then the parent of the new process will be 
+	 * the same as that of the calling process.
+	 */
+	if (args->flags & LINUX_CLONE_PARENT) {
+		sx_xlock(&proctree_lock);
+		PROC_LOCK(p2);
+		proc_reparent(p2, td->td_proc->p_pptr);
+		PROC_UNLOCK(p2);
+		sx_xunlock(&proctree_lock);
+	}
+
 #ifdef DEBUG
 	if (ldebug(clone))
 		printf(LMSG("clone: successful rfork to %d, "