[PATCH -next] srcu: Remove redundant GP sequence checks in srcu_funnel_gp_start

[Feng Lee]

We will perform GP sequence checking at the beginning of srcu_gp_start,
thus making it safe to remove duplicate GP sequence checks prior to
calling srcu_gp_start.

Signed-off-by: Feng Lee <379943...@qq.com>
---
 kernel/rcu/srcutree.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index 5e2e53464794..cbef5674d201 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -1076,7 +1076,6 @@ static void srcu_funnel_gp_start(struct srcu_struct *ssp, 
struct srcu_data *sdp,
        /* If grace period not already in progress, start it. */
        if (!WARN_ON_ONCE(rcu_seq_done(&sup->srcu_gp_seq, s)) &&
            rcu_seq_state(sup->srcu_gp_seq) == SRCU_STATE_IDLE) {
-               WARN_ON_ONCE(ULONG_CMP_GE(sup->srcu_gp_seq, 
sup->srcu_gp_seq_needed));
                srcu_gp_start(ssp);
 
                // And how can that list_add() in the "else" clause
-- 
2.47.0