diff options
| author | Richard Cochran <richard.cochran@omicron.at> | 2011-02-01 13:52:32 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-02 15:28:19 +0100 |
| commit | 81e294cba2596f5f10848bbe19d98b344c2a2d5c (patch) | |
| tree | 4334ced22eff475275a81f7e62f1f5e9df43a433 /kernel/posix-timers.c | |
| parent | ce26efdefa5e8f22d933df72d7f7482725091d6d (diff) | |
| download | lwn-81e294cba2596f5f10848bbe19d98b344c2a2d5c.tar.gz lwn-81e294cba2596f5f10848bbe19d98b344c2a2d5c.zip | |
posix-timers: Add support for fd based clocks
Extend the negative clockids which are currently used by posix cpu
timers to encode the PID with a file descriptor based type which
encodes the fd in the upper bits.
Originally-from: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <20110201134420.062860200@linutronix.de>
Diffstat (limited to 'kernel/posix-timers.c')
| -rw-r--r-- | kernel/posix-timers.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index 5a5a4f1c0971..df629d853a81 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -488,7 +488,7 @@ static void release_posix_timer(struct k_itimer *tmr, int it_id_set) static struct k_clock *clockid_to_kclock(const clockid_t id) { if (id < 0) - return &clock_posix_cpu; + return (id & CLOCKFD_MASK) == CLOCKFD ? NULL : &clock_posix_cpu; if (id >= MAX_CLOCKS || !posix_clocks[id].clock_getres) return NULL; |