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authorTakashi Iwai <tiwai@suse.de>2009-03-09 15:21:57 +0100
committerTakashi Iwai <tiwai@suse.de>2009-03-09 15:21:57 +0100
commitefdcd41b4e41560375bb34ad8b095bcaa1c3a93f (patch)
tree57200ef68bae530776c0c2621c51e9464e1e72f9 /include/linux/timerfd.h
parent33dbe6114047496a5b6fee0941c52dad41250043 (diff)
parent79c7cdd5441f5d3900c1632adcc8cd2bee35c8da (diff)
Merge branch 'topic/vmaster-update' into topic/docbook-fix
Diffstat (limited to 'include/linux/timerfd.h')
-rw-r--r--include/linux/timerfd.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
index 86cb0501d3e2..2d0792983f8c 100644
--- a/include/linux/timerfd.h
+++ b/include/linux/timerfd.h
@@ -11,13 +11,21 @@
/* For O_CLOEXEC and O_NONBLOCK */
#include <linux/fcntl.h>
-/* Flags for timerfd_settime. */
+/*
+ * CAREFUL: Check include/asm-generic/fcntl.h when defining
+ * new flags, since they might collide with O_* ones. We want
+ * to re-use O_* flags that couldn't possibly have a meaning
+ * from eventfd, in order to leave a free define-space for
+ * shared O_* flags.
+ */
#define TFD_TIMER_ABSTIME (1 << 0)
-
-/* Flags for timerfd_create. */
#define TFD_CLOEXEC O_CLOEXEC
#define TFD_NONBLOCK O_NONBLOCK
+#define TFD_SHARED_FCNTL_FLAGS (TFD_CLOEXEC | TFD_NONBLOCK)
+/* Flags for timerfd_create. */
+#define TFD_CREATE_FLAGS TFD_SHARED_FCNTL_FLAGS
+/* Flags for timerfd_settime. */
+#define TFD_SETTIME_FLAGS TFD_TIMER_ABSTIME
#endif /* _LINUX_TIMERFD_H */
-