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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-11 17:10:07 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-03-11 17:10:07 +1100
commite14eee56c2280953c6e3d24d5dce42bd90836b81 (patch)
tree21ab792d9ad6fbbab460058f352a0158f995644e /include/linux/timerfd.h
parentd6ee6f7e4c74d9a0fed7544f4d389bde004651d3 (diff)
parent99adcd9d67aaf04e28f5ae96df280f236bde4b66 (diff)
downloadblackbird-op-linux-e14eee56c2280953c6e3d24d5dce42bd90836b81.tar.gz
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Merge commit 'origin/master' into next
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 */
-
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