diff options
| author | Len Brown <len.brown@intel.com> | 2009-04-05 02:14:15 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-05 02:14:15 -0400 |
| commit | 478c6a43fcbc6c11609f8cee7c7b57223907754f (patch) | |
| tree | a7f7952099da60d33032aed6de9c0c56c9f8779e /include/linux/eventfd.h | |
| parent | 8a3f257c704e02aee9869decd069a806b45be3f1 (diff) | |
| parent | 6bb597507f9839b13498781e481f5458aea33620 (diff) | |
Merge branch 'linus' into release
Conflicts:
arch/x86/kernel/cpu/cpufreq/longhaul.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/eventfd.h')
| -rw-r--r-- | include/linux/eventfd.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h index a667637b54e..f45a8ae5f82 100644 --- a/include/linux/eventfd.h +++ b/include/linux/eventfd.h @@ -13,10 +13,20 @@ /* For O_CLOEXEC and O_NONBLOCK */ #include <linux/fcntl.h> -/* Flags for eventfd2. */ +/* + * 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 EFD_SEMAPHORE (1 << 0) #define EFD_CLOEXEC O_CLOEXEC #define EFD_NONBLOCK O_NONBLOCK +#define EFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK) +#define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE) + struct file *eventfd_fget(int fd); int eventfd_signal(struct file *file, int n); |