exec: move de_thread()->setmax_mm_hiwater_rss() into exec_mmap()

Minor cleanup. de_thread()->setmax_mm_hiwater_rss() looks a bit
strange, move it into exec_mmap() which plays with old_mm.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/fs/exec.c b/fs/exec.c
index 1e94d2263ae0..95551c6da090 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -850,6 +850,7 @@ static int exec_mmap(struct mm_struct *mm)
         if (old_mm) {
                 up_read(&old_mm->mmap_sem);
                 BUG_ON(active_mm != old_mm);
+                setmax_mm_hiwater_rss(&tsk->signal->maxrss, old_mm);
                 mm_update_next_owner(old_mm);
                 mmput(old_mm);
                 return 0;
@@ -980,9 +981,6 @@ no_thread_group:
         /* we have changed execution domain */
         tsk->exit_signal = SIGCHLD;
 
-        if (current->mm)
-                setmax_mm_hiwater_rss(&sig->maxrss, current->mm);
-
         exit_itimers(sig);
         flush_itimer_signals();