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authorH. Peter Anvin <hpa@linux.intel.com>2009-02-23 14:05:56 -0800
committerH. Peter Anvin <hpa@linux.intel.com>2009-02-23 14:05:56 -0800
commitdc731ca60954310be0993e8992d450c7089fd13d (patch)
tree6a997916f963d9e6dfa76fc5564296f57c3f909e /include/linux/timerfd.h
parentec5b3d32437571b8a742069a4cfd04edb6b6eda5 (diff)
parent20f4d6c3a2a23c5d7d9cc7f42fbb943ca7a03d1f (diff)
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Merge branch 'x86/urgent' into x86/mce2
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 86cb0501d3e..2d0792983f8 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 */
-