Messages in this thread | | | Date | Fri, 22 Mar 2013 09:34:54 -0700 | From | "Paul E. McKenney" <> | Subject | Re: + atomic-improve-atomic_inc_unless_negative-atomic_dec_unless_positive .patch added to -mm tree |
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On Thu, Mar 21, 2013 at 03:56:58PM -0700, Eric Dumazet wrote: > On Thu, 2013-03-21 at 19:30 +0100, Oleg Nesterov wrote: > > > To me, it would be better to kill atomic_inc_not_zero_hint() or unify > > unify it with atomic_inc_not_zero(). But this is another story. > > git is your friend. > > I suggest you read 3f9d35b9514 changelog before killing it, thanks.
Hello, Eric,
Does the addition of a memory barrier in the not-zero case impose too large a performance penalty?
Thanx, Paul
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