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Silence compiler "always false comparison" warning
[lttng-modules.git]
/
wrapper
/
poll.h
diff --git
a/wrapper/poll.h
b/wrapper/poll.h
index ae524730cda3e184c34293e69d8bd7beec4fa5d3..dde5c55b9562856b074a8daf1c415705e02b3a9c 100644
(file)
--- a/
wrapper/poll.h
+++ b/
wrapper/poll.h
@@
-1,20
+1,20
@@
-#ifndef _LTTNG_WRAPPER_POLL_H
-#define _LTTNG_WRAPPER_POLL_H
-
-/*
- * Copyright (C) 2011 Mathieu Desnoyers (mathieu.desnoyers@efficios.com)
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
*
*
- * wrapper around poll __pollwait and poll_get_entry. Using KALLSYMS to get its
- * address when available, else we need to have a kernel that exports this
- * function to GPL modules.
+ * wrapper/poll.h
*
*
- *
Dual LGPL v2.1/GPL v2 license.
+ *
Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
*/
+#ifndef _LTTNG_WRAPPER_POLL_H
+#define _LTTNG_WRAPPER_POLL_H
+
#include <linux/poll.h>
#include <linux/poll.h>
-void wrapper_pollwait_exclusive(struct file *filp,
- wait_queue_head_t *wait_address,
- poll_table *p);
+/*
+ * Note: poll_wait_set_exclusive() is defined as no-op. Thundering herd
+ * effect can be noticed with large number of consumer threads.
+ */
+
+#define poll_wait_set_exclusive(poll_table)
#endif /* _LTTNG_WRAPPER_POLL_H */
#endif /* _LTTNG_WRAPPER_POLL_H */
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