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authorPaul E. McKenney <paulmck@kernel.org>2023-03-18 09:34:52 -0700
committerPaul E. McKenney <paulmck@kernel.org>2023-04-04 08:36:48 -0700
commiteabe7625f053050e4cecbbe98bd944f7e8eb14f5 (patch)
tree5c508cf9a60557cb51720a36bbec9996548b658e /kernel/rcu
parenta7bf4d7c16c1cf9753873879630a5d5169eb3206 (diff)
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 <sachinp@linux.ibm.com> Tested-by: "Zhang, Qiang1" <qiang1.zhang@intel.com> Cc: Christoph Hellwig <hch@lst.de> Tested-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/srcutree.c11
1 files changed, 6 insertions, 5 deletions
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;
}
}