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| author | Frederic Weisbecker <frederic@kernel.org> | 2020-11-13 13:13:19 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-07 01:24:19 +0100 |
| commit | d97b078182406c0bd0aacd36fc0a693e118e608f (patch) | |
| tree | 88d524c2c60c23eaded9d879db8c2c034051247f /kernel/rcu/rcu_segcblist.h | |
| parent | rcu/nocb: Always init segcblist on CPU up (diff) | |
| download | linux-d97b078182406c0bd0aacd36fc0a693e118e608f.tar.xz linux-d97b078182406c0bd0aacd36fc0a693e118e608f.zip | |
rcu/nocb: De-offloading CB kthread
To de-offload callback processing back onto a CPU, it is necessary to
clear SEGCBLIST_OFFLOAD and notify the nocb CB kthread, which will then
clear its own bit flag and go to sleep to stop handling callbacks. This
commit makes that change. It will also be necessary to notify the nocb
GP kthread in this same way, which is the subject of a follow-on commit.
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>
[ paulmck: Add export per kernel test robot feedback. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/rcu_segcblist.h')
| -rw-r--r-- | kernel/rcu/rcu_segcblist.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/rcu_segcblist.h b/kernel/rcu/rcu_segcblist.h index e05952ab9b87..28c9a5225afc 100644 --- a/kernel/rcu/rcu_segcblist.h +++ b/kernel/rcu/rcu_segcblist.h @@ -109,7 +109,7 @@ void rcu_segcblist_inc_len(struct rcu_segcblist *rsclp); void rcu_segcblist_add_len(struct rcu_segcblist *rsclp, long v); void rcu_segcblist_init(struct rcu_segcblist *rsclp); void rcu_segcblist_disable(struct rcu_segcblist *rsclp); -void rcu_segcblist_offload(struct rcu_segcblist *rsclp); +void rcu_segcblist_offload(struct rcu_segcblist *rsclp, bool offload); bool rcu_segcblist_ready_cbs(struct rcu_segcblist *rsclp); bool rcu_segcblist_pend_cbs(struct rcu_segcblist *rsclp); struct rcu_head *rcu_segcblist_first_cb(struct rcu_segcblist *rsclp); |