Messages in this thread | | | Date | Mon, 22 Jun 2015 15:28:21 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH] fs: optimize inotify/fsnotify code for unwatched files |
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On Sat, Jun 20, 2015 at 06:30:58PM -0700, Paul E. McKenney wrote: > Well, it is not hard to have an SRCU-like thing that doesn't have > read-side memory barriers, given that older versions of SRCU didn't > have them. However, the price is increased latency for the analog to > synchronize_srcu(). I am guessing that this would not be a problem > for notification-group destruction, which is presumably rare.
I don't think it ever makes sense to optimize for a global state. So screw sync_srcu() and make the srcu_read_lock() thing go fast.
If you need fast global state you're doing it wrong. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
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