From 660349ac79cb22bb64c44b026d879069783e97d5 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 17 Mar 2023 20:22:58 -0700 Subject: srcu: Move ->sda_is_static from srcu_struct to srcu_usage This commit moves the ->sda_is_static field from the srcu_struct structure to the srcu_usage structure to reduce the size of the former in order to improve cache locality. Suggested-by: Christoph Hellwig Tested-by: Sachin Sant Tested-by: "Zhang, Qiang1" Tested-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney --- include/linux/srcutree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h index 3023492d8d89..d3534ecb806e 100644 --- a/include/linux/srcutree.h +++ b/include/linux/srcutree.h @@ -76,6 +76,7 @@ struct srcu_usage { unsigned long srcu_size_jiffies; /* Current contention-measurement interval. */ unsigned long srcu_n_lock_retries; /* Contention events in current interval. */ unsigned long srcu_n_exp_nodelay; /* # expedited no-delays in current GP phase. */ + bool sda_is_static; /* May ->sda be passed to free_percpu()? */ }; /* @@ -84,7 +85,6 @@ struct srcu_usage { struct srcu_struct { unsigned int srcu_idx; /* Current rdr array element. */ struct srcu_data __percpu *sda; /* Per-CPU srcu_data array. */ - bool sda_is_static; /* May ->sda be passed to free_percpu()? */ unsigned long srcu_barrier_seq; /* srcu_barrier seq #. */ struct mutex srcu_barrier_mutex; /* Serialize barrier ops. */ struct completion srcu_barrier_completion; -- cgit v1.2.3