Simplify lock handling in enqueue_timer_rotate_job()

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/bin/lttng-sessiond/sessiond-timer.c b/src/bin/lttng-sessiond/sessiond-timer.c
index 0d500aa5522ae92bd41a645dc587cd05c44faba7..ba8373bb92cdd6f42476b24113d36f2e796384af 100644 (file)
--- a/src/bin/lttng-sessiond/sessiond-timer.c
+++ b/src/bin/lttng-sessiond/sessiond-timer.c
@@ -284,35 +284,29 @@ int enqueue_timer_rotate_job(struct timer_thread_parameters *ctx,
                struct ltt_session *session, unsigned int signal)
 {
        int ret;
-       bool has_duplicate_timer_job;
        char *c = "!";
+       struct sessiond_rotation_timer *timer_data = NULL;
 
        pthread_mutex_lock(&ctx->rotation_timer_queue->lock);
-       has_duplicate_timer_job = check_duplicate_timer_job(ctx, session,
-                       signal);
-
-       if (!has_duplicate_timer_job) {
-               struct sessiond_rotation_timer *timer_data = NULL;
-
-               timer_data = zmalloc(sizeof(struct sessiond_rotation_timer));
-               if (!timer_data) {
-                       PERROR("Allocation of timer data");
-                       goto error;
-               }
-               timer_data->session_id = session->id;
-               timer_data->signal = signal;
-               cds_list_add_tail(&timer_data->head,
-                               &ctx->rotation_timer_queue->list);
-       } else {
+       if (check_duplicate_timer_job(ctx, session, signal)) {
                /*
                 * This timer job is already pending, we don't need to add
                 * it.
                 */
-               pthread_mutex_unlock(&ctx->rotation_timer_queue->lock);
                ret = 0;
                goto end;
        }
-       pthread_mutex_unlock(&ctx->rotation_timer_queue->lock);
+
+       timer_data = zmalloc(sizeof(struct sessiond_rotation_timer));
+       if (!timer_data) {
+               PERROR("Allocation of timer data");
+               ret = -1;
+               goto end;
+       }
+       timer_data->session_id = session->id;
+       timer_data->signal = signal;
+       cds_list_add_tail(&timer_data->head,
+                       &ctx->rotation_timer_queue->list);
 
        ret = lttng_write(
                        lttng_pipe_get_writefd(ctx->rotation_timer_queue->event_pipe),
@@ -328,15 +322,13 @@ int enqueue_timer_rotate_job(struct timer_thread_parameters *ctx,
                        goto end;
                }
                PERROR("Timer wakeup rotation thread");
-               goto error;
+               goto end;
        }
 
        ret = 0;
-       goto end;
 
-error:
-       ret = -1;
 end:
+       pthread_mutex_unlock(&ctx->rotation_timer_queue->lock);
        return ret;
 }