1 files changed, 4 insertions, 0 deletions

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e8898758dd31..7ff31c60186a 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -2091,6 +2091,10 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
                         return mask;
         }
 
+        /* No write status requested, avoid expensive OUT tests. */
+        if (wait && !(wait->key & (POLLWRBAND | POLLWRNORM | POLLOUT)))
+                return mask;
+
         writable = unix_writable(sk);
         other = unix_peer_get(sk);
         if (other) {