Pending cbs check in rcu_prepare_for_idle is inversed
in the sense that, it should accelerate if there are
pending cbs; but, the check does the opposite. So,
fix it.

Fixes: 15fecf89e46a ("srcu: Abstract multi-tail callback list handling")
Signed-off-by: Neeraj Upadhyay <>
 kernel/rcu/tree_plugin.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 908b309..b8f51df 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1493,7 +1493,7 @@ static void rcu_prepare_for_idle(void)
        rdtp->last_accelerate = jiffies;
        for_each_rcu_flavor(rsp) {
                rdp = this_cpu_ptr(rsp->rda);
-               if (rcu_segcblist_pend_cbs(&rdp->cblist))
+               if (!rcu_segcblist_pend_cbs(&rdp->cblist))
                rnp = rdp->mynode;
                raw_spin_lock_rcu_node(rnp); /* irqs already disabled. */
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