Re: +atomic-improve-atomic_inc_unless_negative-atomic_dec_unless_positive .patchadded to -mm tree

From: Paul E. McKenney
Date: Fri Mar 22 2013 - 12:35:21 EST

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

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at