diff options
| author | Frederic Weisbecker <frederic@kernel.org> | 2021-09-16 14:10:48 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-12-07 16:22:21 -0800 |
| commit | 6120b72e25e195b6fa15b0a674479a38166c392a (patch) | |
| tree | d7784c7e62f7ec7663a70cf5c5b11db6ee8c645a /kernel/rcu/tree.h | |
| parent | 6e16b0f7bae3817ea67f4bef4f84298e880fbf66 (diff) | |
rcu: Remove rcu_data.exp_deferred_qs and convert to rcu_data.cpu no_qs.b.exp
Having two fields for the same purpose with subtle differences on
different RCU flavours is confusing, especially when both fields always
exist on both RCU flavours.
Fortunately, it is now safe for preemptible RCU to rely on the rcu_data
structure's ->cpu_no_qs.b.exp field, just like non-preemptible RCU.
This commit therefore removes the ad-hoc ->exp_deferred_qs field.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 305cf6aeb408..ea46ed40f6bc 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -157,7 +157,6 @@ struct rcu_data { bool core_needs_qs; /* Core waits for quiescent state. */ bool beenonline; /* CPU online at least once. */ bool gpwrap; /* Possible ->gp_seq wrap. */ - bool exp_deferred_qs; /* This CPU awaiting a deferred QS? */ bool cpu_started; /* RCU watching this onlining CPU. */ struct rcu_node *mynode; /* This CPU's leaf of hierarchy */ unsigned long grpmask; /* Mask to apply to leaf qsmask. */ |