lib/is_single_threaded.c: change current_is_single_threaded() to use for_each_thread()

Change current_is_single_threaded() to use for_each_thread() rather than
deprecated while_each_thread().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index bd2bea963364..391fd23976a2 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -36,8 +36,7 @@ bool current_is_single_threaded(void)
                 if (unlikely(p == task->group_leader))
                         continue;
 
-                t = p;
-                do {
+                for_each_thread(p, t) {
                         if (unlikely(t->mm == mm))
                                 goto found;
                         if (likely(t->mm))
@@ -48,7 +47,7 @@ bool current_is_single_threaded(void)
                          * forked before exiting.
                          */
                         smp_rmb();
-                } while_each_thread(p, t);
+                }
         }
         ret = true;
 found: