Messages in this thread | | | Date | Thu, 16 Mar 2023 00:19:19 +0100 | From | Frederic Weisbecker <> | Subject | Re: [PATCH 4/9] rcu: Register rcu-lazy shrinker only for CONFIG_RCU_LAZY=y kernels |
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Le Wed, Mar 15, 2023 at 07:43:44PM +0000, Joel Fernandes (Google) a écrit : > From: Zqiang <qiang1.zhang@intel.com> > > The lazy_rcu_shrink_count() shrinker function is registered even in > kernels built with CONFIG_RCU_LAZY=n, in which case this function > uselessly consumes cycles learning that no CPU has any lazy callbacks > queued. > > This commit therefore registers this shrinker function only in the kernels > built with CONFIG_RCU_LAZY=y, where it might actually do something useful. > > Signed-off-by: Zqiang <qiang1.zhang@intel.com> > Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> > Signed-off-by: Paul E. McKenney <paulmck@kernel.org> > Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
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