--- a/auto/os/linux
+++ b/auto/os/linux
@@ -21,7 +21,6 @@ ngx_func_test="int efd = 0, fd = 1, n;
 
 if [ $ngx_found = yes ]; then
     have=HAVE_EPOLL . auto/have
-    have=HAVE_CLEAR_EVENT . auto/have
     CORE_SRCS="$CORE_SRCS $EPOLL_SRCS"
     EVENT_MODULES="$EVENT_MODULES $EPOLL_MODULE"
     EVENT_FOUND=YES

--- a/src/event/modules/ngx_epoll_module.c
+++ b/src/event/modules/ngx_epoll_module.c
@@ -111,8 +111,8 @@ ngx_event_module_t  ngx_epoll_module_ctx
         ngx_epoll_del_event,             /* delete an event */
         ngx_epoll_add_event,             /* enable an event */
         ngx_epoll_del_event,             /* disable an event */
-        NULL,                            /* add an connection */
-        NULL,                            /* delete an connection */
+        ngx_epoll_add_connection,        /* add an connection */
+        ngx_epoll_del_connection,        /* delete an connection */
         ngx_epoll_process_events,        /* process the events */
         ngx_epoll_init,                  /* init the events */
         ngx_epoll_done,                  /* done the events */
@@ -167,11 +167,7 @@ static int ngx_epoll_init(ngx_cycle_t *c
 
     ngx_event_actions = ngx_epoll_module_ctx.actions;
 
-#if (HAVE_CLEAR_EVENT)
-    ngx_event_flags = NGX_USE_CLEAR_EVENT;
-#else
-    ngx_event_flags = NGX_USE_LEVEL_EVENT;
-#endif
+    ngx_event_flags = NGX_USE_EDGE_EVENT;
 
     return NGX_OK;
 }
@@ -195,53 +191,33 @@ static void ngx_epoll_done(ngx_cycle_t *
 
 static int ngx_epoll_add_event(ngx_event_t *ev, int event, u_int flags)
 {
-    int                  op, prev;
-    ngx_event_t         *e;
+    struct epoll_event   ee;
     ngx_connection_t    *c;
-    struct epoll_event   ee;
 
     c = ev->data;
 
+#if (NGX_READ_EVENT != EPOLLIN) || (NGX_WRITE_EVENT != EPOLLOUT)
     if (event == NGX_READ_EVENT) {
-        e = c->write;
-        prev = EPOLLOUT;
-#if (NGX_READ_EVENT != EPOLLIN)
         event = EPOLLIN;
-#endif
 
     } else {
-        e = c->read;
-        prev = EPOLLIN;
-#if (NGX_WRITE_EVENT != EPOLLOUT)
         event = EPOLLOUT;
+    }
 #endif
-    }
 
-    if (e->active) {
-        op = EPOLL_CTL_MOD;
-        event |= prev;
+    ee.events = event|EPOLLET;
+    ee.data.ptr = (void *) ((uintptr_t) c | c->read->instance);
 
-    } else {
-        op = EPOLL_CTL_ADD;
-    }
-
-    ee.events = event | flags;
-    ee.data.ptr = (void *) ((uintptr_t) c | ev->instance);
+    ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                   "epoll add event: fd:%d ev:%08X", c->fd, ee.events);
 
-    ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "epoll add event: fd:%d op:%d ev:%08X",
-                   c->fd, op, ee.events);
-
-    if (epoll_ctl(ep, op, c->fd, &ee) == -1) {
-        ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
-                      "epoll_ctl(%d, %d) failed", op, c->fd);
+    if (epoll_ctl(ep, EPOLL_CTL_ADD, c->fd, &ee) == -1) {
+        ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
+                      "epoll_ctl(EPOLL_CTL_MOD, %d) failed", c->fd);
         return NGX_ERROR;
     }
 
     ev->active = 1;
-#if 0
-    ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
-#endif
 
     return NGX_OK;
 }
@@ -249,51 +225,20 @@ static int ngx_epoll_add_event(ngx_event
 
 static int ngx_epoll_del_event(ngx_event_t *ev, int event, u_int flags)
 {
-    int                  op, prev;
-    ngx_event_t         *e;
+    struct epoll_event   ee;
     ngx_connection_t    *c;
-    struct epoll_event   ee;
-
-    /*
-     * when the file descriptor is closed the epoll automatically deletes
-     * it from its queue so we do not need to delete explicity the event
-     * before the closing the file descriptor.
-     */
-
-    if (flags & NGX_CLOSE_EVENT) {
-        ev->active = 0;
-        return NGX_OK;
-    }
 
     c = ev->data;
 
-    if (event == NGX_READ_EVENT) {
-        e = c->write;
-        prev = EPOLLOUT;
-
-    } else {
-        e = c->read;
-        prev = EPOLLIN;
-    }
-
-    if (e->active) {
-        op = EPOLL_CTL_MOD;
-        ee.events = prev | flags;
-        ee.data.ptr = (void *) ((uintptr_t) c | ev->instance);
+    ee.events = 0;
+    ee.data.ptr = NULL;
 
-    } else {
-        op = EPOLL_CTL_DEL;
-        ee.events = 0;
-        ee.data.ptr = NULL;
-    }
+    ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                   "epoll del event: fd:%d", c->fd);
 
-    ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
-                   "epoll del event: fd:%d op:%d ev:%08X",
-                   c->fd, op, ee.events);
-
-    if (epoll_ctl(ep, op, c->fd, &ee) == -1) {
-        ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
-                      "epoll_ctl(%d, %d) failed", op, c->fd);
+    if (epoll_ctl(ep, EPOLL_CTL_DEL, c->fd, &ee) == -1) {
+        ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno,
+                      "epoll_ctl(EPOLL_CTL_MOD, %d) failed", c->fd);
         return NGX_ERROR;
     }
 
@@ -303,7 +248,6 @@ static int ngx_epoll_del_event(ngx_event
 }
 
 
-#if 0
 static int ngx_epoll_add_connection(ngx_connection_t *c)
 {
     struct epoll_event  ee;
@@ -334,7 +278,6 @@ static int ngx_epoll_del_connection(ngx_
 
     return NGX_OK;
 }
-#endif
 
 
 int ngx_epoll_process_events(ngx_log_t *log)

--- a/src/event/modules/ngx_kqueue_module.c
+++ b/src/event/modules/ngx_kqueue_module.c
@@ -254,7 +254,7 @@ static int ngx_kqueue_del_event(ngx_even
     }
 
     /*
-     * when the file descriptor is closed the kqueue automatically deletes
+     * when the file descriptor is closed a kqueue automatically deletes
      * its filters so we do not need to delete explicity the event
      * before the closing the file descriptor.
      */

--- a/src/event/ngx_event.h
+++ b/src/event/ngx_event.h
@@ -176,19 +176,18 @@ extern ngx_event_actions_t   ngx_event_a
 
 /*
  * The event filter requires to read/write the whole data -
- * select, poll, /dev/poll, kqueue, epoll.
+ * select, poll, /dev/poll, kqueue.
  */
 #define NGX_USE_LEVEL_EVENT    0x00000001
 
 /*
  * The event filter is deleted after a notification without an additional
- * syscall - select, poll, kqueue, epoll.
+ * syscall - select, poll, kqueue.
  */
 #define NGX_USE_ONESHOT_EVENT  0x00000002
 
 /*
- * The event filter notifies only the changes and an initial level -
- * kqueue, epoll.
+ *  The event filter notifies only the changes and an initial level - kqueue.
  */
 #define NGX_USE_CLEAR_EVENT    0x00000004
 
@@ -206,7 +205,7 @@ extern ngx_event_actions_t   ngx_event_a
 
 /*
  * The event filter notifies only the changes (the edges)
- * but not an initial level - early epoll patches.
+ * but not an initial level - epoll.
  */
 #define NGX_USE_EDGE_EVENT     0x00000020
 
@@ -276,27 +275,6 @@ extern ngx_event_actions_t   ngx_event_a
 #define NGX_DISABLE_EVENT  EV_DISABLE
 
 
-#elif (HAVE_DEVPOLL)
-
-#define NGX_READ_EVENT     POLLIN
-#define NGX_WRITE_EVENT    POLLOUT
-
-#define NGX_LEVEL_EVENT    0
-
-
-#elif (HAVE_EPOLL)
-
-#define NGX_READ_EVENT     EPOLLIN
-#define NGX_WRITE_EVENT    EPOLLOUT
-
-#define NGX_LEVEL_EVENT    0
-#define NGX_CLEAR_EVENT    EPOLLET
-#define NGX_ONESHOT_EVENT  0x70000000
-#if 0
-#define NGX_ONESHOT_EVENT  EPOLLONESHOT
-#endif
-
-
 #elif (HAVE_POLL)
 
 #define NGX_READ_EVENT     POLLIN
@@ -306,6 +284,14 @@ extern ngx_event_actions_t   ngx_event_a
 #define NGX_ONESHOT_EVENT  1
 
 
+#elif (HAVE_DEVPOLL)
+
+#define NGX_READ_EVENT     POLLIN
+#define NGX_WRITE_EVENT    POLLOUT
+
+#define NGX_LEVEL_EVENT    0
+
+
 #else /* select */
 
 #define NGX_READ_EVENT     0

deleted file mode 100644
--- a/src/event/ngx_event_close.c
+++ /dev/null
@@ -1,41 +0,0 @@
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_types.h>
-#include <ngx_connection.h>
-#include <ngx_event.h>
-#include <ngx_event_timer.h>
-#include <ngx_event_close.h>
-
-
-int ngx_event_close_connection(ngx_event_t *ev)
-{
-    int rc;
-    ngx_connection_t *c = (ngx_connection_t *) ev->data;
-
-    ngx_log_debug(c->log, "close connection: %d" _ c->fd);
-
-    ngx_assert((c->fd != -1), return NGX_ERROR, c->log,
-               "ngx_event_close: already closed");
-
-    if (c->read->timer_set) {
-        ngx_del_timer(c->read);
-    }
-
-    if (c->write->timer_set) {
-        ngx_del_timer(c->write);
-    }
-
-    ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT);
-    ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT);
-
-    if ((rc = ngx_close_socket(c->fd)) == -1)
-        ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
-                      "ngx_event_close: close failed");
-
-    c->fd = -1;
-
-    ngx_destroy_pool(c->pool);
-
-    return rc;
-}

deleted file mode 100644
--- a/src/event/ngx_event_close.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _NGX_EVENT_CLOSE_H_INCLUDED_
-#define _NGX_EVENT_CLOSE_H_INCLUDED_
-
-
-#include <ngx_event.h>
-
-int ngx_event_close_connection(ngx_event_t *ev);
-
-
-#endif /* _NGX_EVENT_CLOSE_H_INCLUDED_ */

--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -84,7 +84,7 @@ void ngx_http_init_connection(ngx_connec
     rev = c->read;
     rev->event_handler = ngx_http_init_request;
 
-    /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
+    /* STUB: epoll */ c->write->event_handler = ngx_http_empty_handler;
 
     if (rev->ready) {
         /* deferred accept, aio, iocp, epoll */
@@ -1180,8 +1180,6 @@ static void ngx_http_set_keepalive(ngx_h
     }
 
     h = c->buffer;
-    wev = c->write;
-    wev->event_handler = ngx_http_empty_handler;
 
     if (h->pos < h->last) {
 
@@ -1216,6 +1214,8 @@ static void ngx_http_set_keepalive(ngx_h
 
     h->pos = h->last = h->start;
     rev->event_handler = ngx_http_keepalive_handler;
+    wev = c->write;
+    wev->event_handler = ngx_http_empty_handler;
 
     if (wev->active) {
         if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {