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rcu: Remove redundant BH disabling in TINY_RCU

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The TINY_RCU rcu_process_callbacks() function is only ever invoked from
a softirq handler, which means that BH is already disabled.  This commit
therefore removes the redundant local_bh_disable() and local_bh_ennable()
from this function.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
This commit is contained in:
Paul E. McKenney 2024-03-01 17:16:53 -08:00 • committed by Uladzislau Rezki (Sony)
parent 1b4e9fdf9e
commit 3dbd8652f8
1 changed files with 0 additions and 2 deletions
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kernel/rcu/tiny.c
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@ -130,9 +130,7 @@ static __latent_entropy void rcu_process_callbacks(struct softirq_action *unused
next = list->next;
prefetch(next);
debug_rcu_head_unqueue(list);
local_bh_disable();
rcu_reclaim_tiny(list);
local_bh_enable();
list = next;
}
}