2 files changed, 3 insertions, 1 deletions
diff --git a/Changes b/Changes
index 4dda738..8375f27 100644
--- a/Changes
+++ b/Changes
@@ -9,6 +9,8 @@ TODO: EV_USE__XXX default with config, document
           testcase by Vladimir Timofeev).
 	- applied win32 fixes by Michael Lenaghan (also James Mansion).
 	- replace EV_MINIMAL by EV_FEATURES.
+        - prefer EPOLL_CTL_ADD over EPOLL_CTL_MOD in some more cases, as it
+          seems the former is *much* faster than the latter.
         - remove dependency on sys/queue.h on freebsd (patch by Vanilla Hsu).
         - add (undocumented) EV_ENABLE when adding events with kqueue,
           this might help with OS X, which seems to need it despite documenting
diff --git a/ev_epoll.c b/ev_epoll.c
index a324691..c738fd0 100644
--- a/ev_epoll.c
+++ b/ev_epoll.c
@@ -90,7 +90,7 @@ epoll_modify (EV_P_ int fd, int oev, int nev)
   ev.events   = (nev & EV_READ  ? EPOLLIN  : 0)
               | (nev & EV_WRITE ? EPOLLOUT : 0);
 
-  if (expect_true (!epoll_ctl (backend_fd, oev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, fd, &ev)))
+  if (expect_true (!epoll_ctl (backend_fd, oev && oldmask != nev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, fd, &ev)))
     return;
 
   if (expect_true (errno == ENOENT))