Re: [PATCH -mm]percpu_rw_semaphore-reimplement-to-not-block-the-readers-unnecessari ly.fix

[Andrew Morton]

On Sun, 11 Nov 2012 19:27:44 +0100
Oleg Nesterov <oleg@xxxxxxxxxx> wrote:

>  lib/percpu-rwsem.c |   35 +++++++++++++++++++++++++++++++++--

y'know, this looks like a great pile of useless bloat for single-CPU
machines.  Maybe add a CONFIG_SMP=n variant which simply calls the
regular rwsem operations?


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