Re: [PATCH] percpu_counter: use local_t and atomic_long_t ifpossible

[Peter Zijlstra]

One think that sprung to mind,..

IFF we're going to implement percpu_counter with local_t and make
local_t this funny tri-counter thing which has its own error, you need
to fix up bdi_stat_error() - it expects to be an upper bound for the
counter error, getting that wrong _will_ cause deadlocks.



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