smbd: Use asys_results

When multiple aio requests finish simultaneously, this saves a few syscalls

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Mar 27 08:05:46 CET 2014 on sn-devel-104

diff --git a/source3/modules/vfs_default.c b/source3/modules/vfs_default.c
index 02ab35b1283ff42671a6034c0271dbe458fc431e..673ebfe35bf99cefc17257b8d33ea12d069dac7d 100644 (file)
--- a/source3/modules/vfs_default.c
+++ b/source3/modules/vfs_default.c
@@ -793,39 +793,36 @@ static void vfswrap_asys_finished(struct tevent_context *ev,
                                        uint16_t flags, void *p)
 {
        struct asys_context *asys_ctx = (struct asys_context *)p;
+       struct asys_result results[outstanding_aio_calls];
+       int i, ret;
 
        if ((flags & TEVENT_FD_READ) == 0) {
                return;
        }
 
-       while (true) {
+       ret = asys_results(asys_ctx, results, outstanding_aio_calls);
+       if (ret < 0) {
+               DEBUG(1, ("asys_results returned %s\n", strerror(-ret)));
+               return;
+       }
+
+       for (i=0; i<ret; i++) {
+               struct asys_result *result = &results[i];
                struct tevent_req *req;
                struct vfswrap_asys_state *state;
-               struct asys_result result;
-               int res;
-
-               res = asys_results(asys_ctx, &result, 1);
-               if (res < 0) {
-                       DEBUG(1, ("asys_result returned %s\n",
-                                 strerror(-res)));
-                       return;
-               }
-               if (res == 0) {
-                       return;
-               }
 
-               if ((result.ret == -1) && (result.err == ECANCELED)) {
-                       return;
+               if ((result->ret == -1) && (result->err == ECANCELED)) {
+                       continue;
                }
 
-               req = talloc_get_type_abort(result.private_data,
+               req = talloc_get_type_abort(result->private_data,
                                            struct tevent_req);
                state = tevent_req_data(req, struct vfswrap_asys_state);
 
                talloc_set_destructor(state, NULL);
 
-               state->ret = result.ret;
-               state->err = result.err;
+               state->ret = result->ret;
+               state->err = result->err;
                tevent_req_defer_callback(req, ev);
                tevent_req_done(req);
        }