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Fix: semaphore semantics are expected from notification command eventfd
[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
notification-thread.c
diff --git
a/src/bin/lttng-sessiond/notification-thread.c
b/src/bin/lttng-sessiond/notification-thread.c
index e0937d8e58eb577d2f088968d7a16299fe5db4c8..70ab7bb5fceb974c0acd04a8003ae453ea5a2efe 100644
(file)
--- a/
src/bin/lttng-sessiond/notification-thread.c
+++ b/
src/bin/lttng-sessiond/notification-thread.c
@@
-209,7
+209,7
@@
struct notification_thread_handle *notification_thread_handle_create(
}
/* FIXME Replace eventfd by a pipe to support older kernels. */
}
/* FIXME Replace eventfd by a pipe to support older kernels. */
- handle->cmd_queue.event_fd = eventfd(0, EFD_CLOEXEC);
+ handle->cmd_queue.event_fd = eventfd(0, EFD_CLOEXEC
| EFD_SEMAPHORE
);
if (handle->cmd_queue.event_fd < 0) {
PERROR("eventfd notification command queue");
goto error;
if (handle->cmd_queue.event_fd < 0) {
PERROR("eventfd notification command queue");
goto error;
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