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authorIngo Molnar <mingo@elte.hu>2009-04-07 11:15:40 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-07 11:15:40 +0200
commit5e34437840d33554f69380584311743b39e8fbeb (patch)
treee081135619ee146af5efb9ee883afca950df5757 /include/linux/timerfd.h
parent77d05632baee21b1cef8730d7c06aa69601e4dca (diff)
parentd508afb437daee7cf07da085b635c44a4ebf9b38 (diff)
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Merge branch 'linus' into core/softlockup
Conflicts: kernel/sysctl.c
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 86cb050..2d07929 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 */
-