Re: [PATCH -v4 4/5] x86,smp: keep spinlock delay values per hashedspinlock address

From: Rik van Riel
Date: Wed Feb 06 2013 - 15:10:52 EST


On 01/27/2013 08:04 AM, Michel Lespinasse wrote:
On Fri, Jan 25, 2013 at 11:18 AM, Rik van Riel <riel@xxxxxxxxxx> wrote:
+ u32 delay = (ent->hash == hash) ? ent->delay : MIN_SPINLOCK_DELAY;

I still don't like the reseting of delay to MIN_SPINLOCK_DELAY when
there is a hash collision.

I've been spending some time looking at this, because I am
not a fan either.

However, it seems to work and I failed to come up with
anything better. Therefore, I have left it as is in the
-v5 patch series.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/