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Subject[tip: core/rcu] rcu: Fix various typos in comments
The following commit has been merged into the core/rcu branch of tip:

Commit-ID: a616aec9aa140ef1ca61b06cec467391cbef11d7
Gitweb: https://git.kernel.org/tip/a616aec9aa140ef1ca61b06cec467391cbef11d7
Author: Ingo Molnar <mingo@kernel.org>
AuthorDate: Mon, 22 Mar 2021 22:29:10 -07:00
Committer: Paul E. McKenney <paulmck@kernel.org>
CommitterDate: Wed, 12 May 2021 12:11:05 -07:00

rcu: Fix various typos in comments

Fix ~12 single-word typos in RCU code comments.

[ paulmck: Apply feedback from Randy Dunlap. ]
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
kernel/rcu/srcutree.c | 4 ++--
kernel/rcu/sync.c | 4 ++--
kernel/rcu/tasks.h | 8 +++----
kernel/rcu/tree.c | 6 ++---
kernel/rcu/tree.h | 2 +-
kernel/rcu/tree_plugin.h | 2 +-
tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h | 2 +-
7 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index e26547b..036ff54 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -777,9 +777,9 @@ static bool srcu_might_be_idle(struct srcu_struct *ssp)
spin_unlock_irqrestore_rcu_node(sdp, flags);

/*
- * No local callbacks, so probabalistically probe global state.
+ * No local callbacks, so probabilistically probe global state.
* Exact information would require acquiring locks, which would
- * kill scalability, hence the probabalistic nature of the probe.
+ * kill scalability, hence the probabilistic nature of the probe.
*/

/* First, see if enough time has passed since the last GP. */
diff --git a/kernel/rcu/sync.c b/kernel/rcu/sync.c
index d4558ab..33d896d 100644
--- a/kernel/rcu/sync.c
+++ b/kernel/rcu/sync.c
@@ -94,9 +94,9 @@ static void rcu_sync_func(struct rcu_head *rhp)
rcu_sync_call(rsp);
} else {
/*
- * We're at least a GP after the last rcu_sync_exit(); eveybody
+ * We're at least a GP after the last rcu_sync_exit(); everybody
* will now have observed the write side critical section.
- * Let 'em rip!.
+ * Let 'em rip!
*/
WRITE_ONCE(rsp->gp_state, GP_IDLE);
}
diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index 350ebf5..da906b7 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -23,7 +23,7 @@ typedef void (*postgp_func_t)(struct rcu_tasks *rtp);
* struct rcu_tasks - Definition for a Tasks-RCU-like mechanism.
* @cbs_head: Head of callback list.
* @cbs_tail: Tail pointer for callback list.
- * @cbs_wq: Wait queue allowning new callback to get kthread's attention.
+ * @cbs_wq: Wait queue allowing new callback to get kthread's attention.
* @cbs_lock: Lock protecting callback list.
* @kthread_ptr: This flavor's grace-period/callback-invocation kthread.
* @gp_func: This flavor's grace-period-wait function.
@@ -504,7 +504,7 @@ DEFINE_RCU_TASKS(rcu_tasks, rcu_tasks_wait_gp, call_rcu_tasks, "RCU Tasks");
* or transition to usermode execution. As such, there are no read-side
* primitives analogous to rcu_read_lock() and rcu_read_unlock() because
* this primitive is intended to determine that all tasks have passed
- * through a safe state, not so much for data-strcuture synchronization.
+ * through a safe state, not so much for data-structure synchronization.
*
* See the description of call_rcu() for more detailed information on
* memory ordering guarantees.
@@ -637,7 +637,7 @@ DEFINE_RCU_TASKS(rcu_tasks_rude, rcu_tasks_rude_wait_gp, call_rcu_tasks_rude,
* there are no read-side primitives analogous to rcu_read_lock() and
* rcu_read_unlock() because this primitive is intended to determine
* that all tasks have passed through a safe state, not so much for
- * data-strcuture synchronization.
+ * data-structure synchronization.
*
* See the description of call_rcu() for more detailed information on
* memory ordering guarantees.
@@ -1163,7 +1163,7 @@ static void exit_tasks_rcu_finish_trace(struct task_struct *t)
* there are no read-side primitives analogous to rcu_read_lock() and
* rcu_read_unlock() because this primitive is intended to determine
* that all tasks have passed through a safe state, not so much for
- * data-strcuture synchronization.
+ * data-structure synchronization.
*
* See the description of call_rcu() for more detailed information on
* memory ordering guarantees.
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 5f1545a..ed1b546 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2489,7 +2489,7 @@ int rcutree_dead_cpu(unsigned int cpu)

/*
* Invoke any RCU callbacks that have made it to the end of their grace
- * period. Thottle as specified by rdp->blimit.
+ * period. Throttle as specified by rdp->blimit.
*/
static void rcu_do_batch(struct rcu_data *rdp)
{
@@ -3848,7 +3848,7 @@ EXPORT_SYMBOL_GPL(start_poll_synchronize_rcu);
*
* If a full RCU grace period has elapsed since the earlier call from
* which oldstate was obtained, return @true, otherwise return @false.
- * If @false is returned, it is the caller's responsibilty to invoke this
+ * If @false is returned, it is the caller's responsibility to invoke this
* function later on until it does return @true. Alternatively, the caller
* can explicitly wait for a grace period, for example, by passing @oldstate
* to cond_synchronize_rcu() or by directly invoking synchronize_rcu().
@@ -4094,7 +4094,7 @@ EXPORT_SYMBOL_GPL(rcu_barrier);
/*
* Propagate ->qsinitmask bits up the rcu_node tree to account for the
* first CPU in a given leaf rcu_node structure coming online. The caller
- * must hold the corresponding leaf rcu_node ->lock with interrrupts
+ * must hold the corresponding leaf rcu_node ->lock with interrupts
* disabled.
*/
static void rcu_init_new_rnp(struct rcu_node *rnp_leaf)
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 9a16487..c1ed047 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -153,7 +153,7 @@ struct rcu_data {
unsigned long gp_seq; /* Track rsp->gp_seq counter. */
unsigned long gp_seq_needed; /* Track furthest future GP request. */
union rcu_noqs cpu_no_qs; /* No QSes yet for this CPU. */
- bool core_needs_qs; /* Core waits for quiesc state. */
+ 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? */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index dfb048e..b0c3fb4 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2857,7 +2857,7 @@ static void show_rcu_nocb_state(struct rcu_data *rdp)
waslocked = raw_spin_is_locked(&rdp->nocb_gp_lock);
wassleep = swait_active(&rdp->nocb_gp_wq);
if (!rdp->nocb_gp_sleep && !waslocked && !wassleep)
- return; /* Nothing untowards. */
+ return; /* Nothing untoward. */

pr_info(" nocb GP activity on CB-only CPU!!! %c%c%c %c\n",
"lL"[waslocked],
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
index cf6938d..1e24827 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
@@ -174,7 +174,7 @@ static inline bool spin_trylock(spinlock_t *lock)
}

struct completion {
- /* Hopefuly this won't overflow. */
+ /* Hopefully this won't overflow. */
unsigned int count;
};

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