Author: dchagin
Date: Tue Mar 8 15:08:22 2016
New Revision: 296501
URL: https://svnweb.freebsd.org/changeset/base/296501
Log:
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.
MFC after: 1 week
Modified:
head/sys/compat/linux/linux_fork.c
Modified: head/sys/compat/linux/linux_fork.c
==============================================================================
--- head/sys/compat/linux/linux_fork.c Tue Mar 8 14:55:50 2016
(r296500)
+++ head/sys/compat/linux/linux_fork.c Tue Mar 8 15:08:22 2016
(r296501)
@@ -222,6 +222,18 @@ 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, "
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