flag parameters: check magic constants

[linux-3.10.git] / fs / eventpoll.c

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 3fd4014..2fdad42 100644 (file)
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1051,6 +1051,9 @@ asmlinkage long sys_epoll_create2(int size, int flags)
        int error, fd = -1;
        struct eventpoll *ep;
 
+       /* Check the EPOLL_* constant for consistency.  */
+       BUILD_BUG_ON(EPOLL_CLOEXEC != O_CLOEXEC);
+
        if (flags & ~EPOLL_CLOEXEC)
                return -EINVAL;