William Lee Irwin III wrote:
I'd feel far more comfortable with this if the lockbit resided in the
page. Also, compare it to akpm's solution.
akpm's solution is alright. They perform similarly on the workload in
question. Of course, the bitlock will scale quite a lot better if you
pushed it and will automatically be localised per device and have NUMA
locality, etc.
As far as page flags go - I agree but I didn't want to use one up.
This is very localised and I don't think it is particularly worse
than what was there before, so I think we can get away with it for
the moment.
--
SUSE Labs, Novell Inc.
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