From eabe7625f053050e4cecbbe98bd944f7e8eb14f5 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sat, 18 Mar 2023 09:34:52 -0700 Subject: srcu: Fix long lines in srcu_get_delay() This commit creates an srcu_usage pointer named "sup" as a shorter synonym for the "ssp->srcu_sup" that was bloating several lines of code. Tested-by: Sachin Sant Tested-by: "Zhang, Qiang1" Cc: Christoph Hellwig Tested-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney --- kernel/rcu/srcutree.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'kernel/rcu') diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index f9dd6ed5503e..9699bcab7215 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -616,17 +616,18 @@ static unsigned long srcu_get_delay(struct srcu_struct *ssp) unsigned long gpstart; unsigned long j; unsigned long jbase = SRCU_INTERVAL; + struct srcu_usage *sup = ssp->srcu_sup; - if (ULONG_CMP_LT(READ_ONCE(ssp->srcu_sup->srcu_gp_seq), READ_ONCE(ssp->srcu_sup->srcu_gp_seq_needed_exp))) + if (ULONG_CMP_LT(READ_ONCE(sup->srcu_gp_seq), READ_ONCE(sup->srcu_gp_seq_needed_exp))) jbase = 0; - if (rcu_seq_state(READ_ONCE(ssp->srcu_sup->srcu_gp_seq))) { + if (rcu_seq_state(READ_ONCE(sup->srcu_gp_seq))) { j = jiffies - 1; - gpstart = READ_ONCE(ssp->srcu_sup->srcu_gp_start); + gpstart = READ_ONCE(sup->srcu_gp_start); if (time_after(j, gpstart)) jbase += j - gpstart; if (!jbase) { - WRITE_ONCE(ssp->srcu_sup->srcu_n_exp_nodelay, READ_ONCE(ssp->srcu_sup->srcu_n_exp_nodelay) + 1); - if (READ_ONCE(ssp->srcu_sup->srcu_n_exp_nodelay) > srcu_max_nodelay_phase) + WRITE_ONCE(sup->srcu_n_exp_nodelay, READ_ONCE(sup->srcu_n_exp_nodelay) + 1); + if (READ_ONCE(sup->srcu_n_exp_nodelay) > srcu_max_nodelay_phase) jbase = 1; } } -- cgit v1.2.3