tree e5bc78f690d12635a56460ea6f54b49318221dc8
parent 250f972d85effad5b6e10da4bbd877e6a4b503b6
author Thomas Gleixner <tglx@linutronix.de> 1305901130 +0200
committer Thomas Gleixner <tglx@linutronix.de> 1306151993 +0200

timerfd: Manage cancelable timers in timerfd

Peter is concerned about the extra scan of CLOCK_REALTIME_COS in the
timer interrupt. Yes, I did not think about it, because the solution
was so elegant. I didn't like the extra list in timerfd when it was
proposed some time ago, but with a rcu based list the list walk it's
less horrible than the original global lock, which was held over the
list iteration.

Requested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>