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-rw-r--r--sysdeps/nptl/fork.c6
-rw-r--r--sysdeps/nptl/fork.h8
2 files changed, 8 insertions, 6 deletions
diff --git a/sysdeps/nptl/fork.c b/sysdeps/nptl/fork.c
index bd68f18b45..14b69a6f89 100644
--- a/sysdeps/nptl/fork.c
+++ b/sysdeps/nptl/fork.c
@@ -55,7 +55,7 @@ __libc_fork (void)
      but our current fork implementation is not.  */
   bool multiple_threads = THREAD_GETMEM (THREAD_SELF, header.multiple_threads);
 
-  __run_fork_handlers (atfork_run_prepare);
+  __run_fork_handlers (atfork_run_prepare, multiple_threads);
 
   /* If we are not running multiple threads, we do not have to
      preserve lock state.  If fork runs from a signal handler, only
@@ -134,7 +134,7 @@ __libc_fork (void)
       __rtld_lock_initialize (GL(dl_load_lock));
 
       /* Run the handlers registered for the child.  */
-      __run_fork_handlers (atfork_run_child);
+      __run_fork_handlers (atfork_run_child, multiple_threads);
     }
   else
     {
@@ -149,7 +149,7 @@ __libc_fork (void)
 	}
 
       /* Run the handlers registered for the parent.  */
-      __run_fork_handlers (atfork_run_parent);
+      __run_fork_handlers (atfork_run_parent, multiple_threads);
     }
 
   return pid;
diff --git a/sysdeps/nptl/fork.h b/sysdeps/nptl/fork.h
index a1c3b26b68..99ed76034b 100644
--- a/sysdeps/nptl/fork.h
+++ b/sysdeps/nptl/fork.h
@@ -52,9 +52,11 @@ enum __run_fork_handler_type
    - atfork_run_child: run all the CHILD_HANDLER and unlocks the internal
 		       lock.
    - atfork_run_parent: run all the PARENT_HANDLER and unlocks the internal
-			lock.  */
-extern void __run_fork_handlers (enum __run_fork_handler_type who)
-  attribute_hidden;
+			lock.
+
+   Perform locking only if DO_LOCKING.  */
+extern void __run_fork_handlers (enum __run_fork_handler_type who,
+				 _Bool do_locking) attribute_hidden;
 
 /* C library side function to register new fork handlers.  */
 extern int __register_atfork (void (*__prepare) (void),