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authorIngo Molnar <mingo@elte.hu>2009-02-22 17:59:49 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-22 17:59:49 +0100
commit2702e0a46c2d28da92b32c9b068ee1291fc0de35 (patch)
treec1e9868a4b91beeebd5f4e820588bc2ae8371911 /include/linux/timerfd.h
parent42bb8cc5e81028e217105299001070d57eb84ad7 (diff)
parentadfafefd104d840ee4461965f22624d77532675b (diff)
Merge branch 'linus' into timers/hpet
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 */
-