1 files changed, 2 insertions, 1 deletions

diff --git a/mm/mlock.c b/mm/mlock.c
index 048260c4e02e..7debb4fdf79b 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -549,7 +549,8 @@ SYSCALL_DEFINE1(mlockall, int, flags)
         if (!can_do_mlock())
                 goto out;
 
-        lru_add_drain_all();    /* flush pagevec */
+        if (flags & MCL_CURRENT)
+                lru_add_drain_all();    /* flush pagevec */
 
         down_write(&current->mm->mmap_sem);