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| author |   Paul E. McKenney <paulmck@kernel.org> | 2024-08-01 17:34:23 -0700 |
|---|---|---|
| committer |   Neeraj Upadhyay <neeraj.upadhyay@kernel.org> | 2024-08-14 16:49:56 +0530 |
| commit | 54973cdd166b13195a99940cd21a827c3a99cac2 (patch) | |
| tree | 6b2f7c6b7683f2ace1cbb452c41946454b2852f3 | |
| parent | rcu/tasks: Update rtp->tasks_gp_seq comment (diff) | |
| download | wireguard-linux-54973cdd166b13195a99940cd21a827c3a99cac2.tar.xz wireguard-linux-54973cdd166b13195a99940cd21a827c3a99cac2.zip | |
rcu: Provide rcu_barrier_cb_is_done() to check rcu_barrier() CBs
This commit provides a rcu_barrier_cb_is_done() function that returns
true if the *rcu_barrier*() callback passed in is done. This will be
used when printing grace-period debugging information.
Signed-off-by: "Paul E. McKenney" <paulmck@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
| -rw-r--r-- | kernel/rcu/rcu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 38238e595a61..caaed27e476b 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -255,6 +255,11 @@ static inline void debug_rcu_head_callback(struct rcu_head *rhp) kmem_dump_obj(rhp); } +static inline bool rcu_barrier_cb_is_done(struct rcu_head *rhp) +{ + return rhp->next == rhp; +} + extern int rcu_cpu_stall_suppress_at_boot; static inline bool rcu_stall_is_suppressed_at_boot(void) |