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| author | Paul E. McKenney <paulmck@kernel.org> | 2023-03-18 03:22:27 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-04-04 18:35:56 +0300 |
| commit | 574dc1a7efe490dffe5c1ce0285306feec16a880 (patch) | |
| tree | ecd147fec191f8b83ba86e312dff07edb84f2442 /include/linux/srcutree.h | |
| parent | a0d8cbd3821369dc9478cabd605417afb9eb24dc (diff) | |
| download | linux-574dc1a7efe490dffe5c1ce0285306feec16a880.tar.xz | |
srcu: Move ->srcu_cb_mutex from srcu_struct to srcu_usage
This commit moves the ->srcu_cb_mutex 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 <hch@lst.de>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Tested-by: "Zhang, Qiang1" <qiang1.zhang@intel.com>
Tested-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include/linux/srcutree.h')
| -rw-r--r-- | include/linux/srcutree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h index 443d27a214ef..231de66ceb15 100644 --- a/include/linux/srcutree.h +++ b/include/linux/srcutree.h @@ -65,13 +65,13 @@ struct srcu_usage { struct srcu_node *level[RCU_NUM_LVLS + 1]; /* First node at each level. */ int srcu_size_state; /* Small-to-big transition state. */ + struct mutex srcu_cb_mutex; /* Serialize CB preparation. */ }; /* * Per-SRCU-domain structure, similar in function to rcu_state. */ struct srcu_struct { - struct mutex srcu_cb_mutex; /* Serialize CB preparation. */ spinlock_t __private lock; /* Protect counters and size state. */ struct mutex srcu_gp_mutex; /* Serialize GP work. */ unsigned int srcu_idx; /* Current rdr array element. */ |