Re: [RFC][PATCH 7/9] rbtree: Implement generic latch_tree

[Peter Zijlstra]

On Mon, Mar 02, 2015 at 11:53:32AM -0800, Paul E. McKenney wrote:
> On Sat, Feb 28, 2015 at 10:24:54PM +0100, Peter Zijlstra wrote:
> > Implement a latched RB-tree in order to get RCU style lookups.
> > 
> > Cc: Michel Lespinasse <walken@xxxxxxxxxx>
> > Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> > Cc: David Woodhouse <David.Woodhouse@xxxxxxxxx>
> > Cc: Rik van Riel <riel@xxxxxxxxxx>
> > Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
> > Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
> > Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> 
> The caller of latch_tree_erase() is required to wait for a grace period
> before freeing the erased nodes?  Or am I missing something subtle here?

Correct; let me clarify this.
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