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| author | Zqiang <qiang1.zhang@intel.com> | 2023-01-30 15:17:37 +0800 |
|---|---|---|
| committer | Joel Fernandes (Google) <joel@joelfernandes.org> | 2023-04-05 13:47:43 +0000 |
| commit | 2450b78e0bb1e034eaa2a33dca689282bd8c892a (patch) | |
| tree | d289de27675ab21ee8a723e069252e5cf7b0d2b1 /kernel/fail_function.c | |
| parent | db7b464df9d820186e98a65aa6a10f0d51fbf8ce (diff) | |
rcu: Register rcu-lazy shrinker only for CONFIG_RCU_LAZY=y kernels
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: Frederic Weisbecker <frederic@kernel.org>
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>
Diffstat (limited to 'kernel/fail_function.c')
0 files changed, 0 insertions, 0 deletions