Re: [PATCH] Cpuset: rcu optimization of page alloc hook

From: Christoph Lameter
Date: Tue Dec 13 2005 - 12:36:46 EST


On Tue, 13 Dec 2005, Paul Jackson wrote:

> So my intuition is:
> If read alot but seldom written, mark "__read_mostly".
> If seldom read or written, leave unmarked.

Correct.

> 1) I would -not- mark "struct kmem_cache *cpuset" __read_mostly, as it
> is rarely accessed on -any- code path, much less a hot one. It is
> ideal cannon fodder.

Agree.

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