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| author | Paul E. McKenney <paulmck@kernel.org> | 2023-03-18 05:13:16 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-04-04 18:36:14 +0300 |
| commit | e3a6ab25cfa0fcdcb31c346b9871a566d440980d (patch) | |
| tree | 8383bceafaaa1d5323c92b67a0d80a0491d61018 /include/linux/srcutree.h | |
| parent | b3fb11f7e9c3c64dd86403409a070c996d8ac081 (diff) | |
| download | linux-e3a6ab25cfa0fcdcb31c346b9871a566d440980d.tar.xz | |
srcu: Move ->srcu_gp_mutex from srcu_struct to srcu_usage
This commit moves the ->srcu_gp_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 694d87b81917..d04e3da6181c 100644 --- a/include/linux/srcutree.h +++ b/include/linux/srcutree.h @@ -67,13 +67,13 @@ struct srcu_usage { int srcu_size_state; /* Small-to-big transition state. */ 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. */ }; /* * Per-SRCU-domain structure, similar in function to rcu_state. */ struct srcu_struct { - struct mutex srcu_gp_mutex; /* Serialize GP work. */ unsigned int srcu_idx; /* Current rdr array element. */ unsigned long srcu_gp_seq; /* Grace-period seq #. */ unsigned long srcu_gp_seq_needed; /* Latest gp_seq needed. */ |