fishHEADmaster

1 files changed, 21 insertions, 0 deletions

diff --git a/backport-include/linux/poll.h b/backport-include/linux/poll.h
new file mode 100644
index 0000000..978b95c
--- /dev/null
+++ b/backport-include/linux/poll.h
@@ -0,0 +1,21 @@
+#ifndef __BACKPORT_LINUX_POLL_H
+#define __BACKPORT_LINUX_POLL_H
+#include_next <linux/poll.h>
+#include <linux/version.h>
+
+#if  LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0) && \
+     LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
+#define poll_does_not_wait LINUX_BACKPORT(poll_does_not_wait)
+static inline bool poll_does_not_wait(const poll_table *p)
+{
+	return p == NULL || p->qproc == NULL;
+}
+
+#define poll_requested_events LINUX_BACKPORT(poll_requested_events)
+static inline unsigned long poll_requested_events(const poll_table *p)
+{
+	return p ? p->key : ~0UL;
+}
+#endif /* 2.6.31 <= version < 3.4 */
+
+#endif /* __BACKPORT_LINUX_POLL_H */