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| author | Frederic Weisbecker <frederic@kernel.org> | 2020-11-13 13:13:16 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-06 16:24:19 -0800 |
| commit | 65e560327fe68153a9ad7452d5fd3171a1927d33 (patch) | |
| tree | e64a575eda8129d59a4d1fb1ff6bb3182ff2a5a1 /include/linux/rcu_segcblist.h | |
| parent | b4e6039e8af8c20dfbbdfcaebfcbd7c9d9ffe713 (diff) | |
| download | linux-stable-65e560327fe68153a9ad7452d5fd3171a1927d33.tar.gz linux-stable-65e560327fe68153a9ad7452d5fd3171a1927d33.tar.bz2 linux-stable-65e560327fe68153a9ad7452d5fd3171a1927d33.zip | |
rcu/nocb: Turn enabled/offload states into a common flag
This commit gathers the rcu_segcblist ->enabled and ->offloaded property
field into a single ->flags bitmask to avoid further proliferation of
individual u8 fields in the structure. This change prepares for the
state formerly known as ->offloaded state to be modified at runtime.
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Neeraj Upadhyay <neeraju@codeaurora.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Inspired-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include/linux/rcu_segcblist.h')
| -rw-r--r-- | include/linux/rcu_segcblist.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/rcu_segcblist.h b/include/linux/rcu_segcblist.h index 6c01f09a6456..4714b0263c76 100644 --- a/include/linux/rcu_segcblist.h +++ b/include/linux/rcu_segcblist.h @@ -63,6 +63,9 @@ struct rcu_cblist { #define RCU_NEXT_TAIL 3 #define RCU_CBLIST_NSEGS 4 +#define SEGCBLIST_ENABLED BIT(0) +#define SEGCBLIST_OFFLOADED BIT(1) + struct rcu_segcblist { struct rcu_head *head; struct rcu_head **tails[RCU_CBLIST_NSEGS]; @@ -73,8 +76,7 @@ struct rcu_segcblist { long len; #endif long seglen[RCU_CBLIST_NSEGS]; - u8 enabled; - u8 offloaded; + u8 flags; }; #define RCU_SEGCBLIST_INITIALIZER(n) \ |