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Merge branches 'doc.2020.02.27a', 'fixes.2020.03.21a', 'kfree_rcu.2020.02.20a', 'locktorture.2020.02.20a', 'ovld.2020.02.20a', 'rcu-tasks.2020.02.20a', 'srcu.2020.02.20a' and 'torture.2020.02.20a' into HEAD

Browse Source 
doc.2020.02.27a: Documentation updates.
fixes.2020.03.21a: Miscellaneous fixes.
kfree_rcu.2020.02.20a: Updates to kfree_rcu().
locktorture.2020.02.20a: Lock torture-test updates.
ovld.2020.02.20a: Updates to callback-overload handling.
rcu-tasks.2020.02.20a: RCU-tasks updates.
srcu.2020.02.20a: SRCU updates.
torture.2020.02.20a: Torture-test updates.
This commit is contained in:
Paul E. McKenney
2020-03-21 17:15:11 -07:00
parent 8149b5cbfa 127e29815b 613707929b 28e09a2e48 b692dc4adf 90ba11ba99 710426068d a144935cea
commit aa93ec620b
29 changed files with 644 additions and 203 deletions
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29
include/trace/events/rcu.h
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@@ -623,6 +623,34 @@ TRACE_EVENT_RCU(rcu_invoke_kfree_callback,
__entry->rcuname, __entry->rhp, __entry->offset)
);
/*
* Tracepoint for the invocation of a single RCU callback of the special
* kfree_bulk() form. The first argument is the RCU flavor, the second
* argument is a number of elements in array to free, the third is an
* address of the array holding nr_records entries.
*/
TRACE_EVENT_RCU(rcu_invoke_kfree_bulk_callback,
TP_PROTO(const char *rcuname, unsigned long nr_records, void **p),
TP_ARGS(rcuname, nr_records, p),
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, nr_records)
__field(void **, p)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->nr_records = nr_records;
__entry->p = p;
),
TP_printk("%s bulk=0x%p nr_records=%lu",
__entry->rcuname, __entry->p, __entry->nr_records)
);
/*
* Tracepoint for exiting rcu_do_batch after RCU callbacks have been
* invoked. The first argument is the name of the RCU flavor,
@@ -712,6 +740,7 @@ TRACE_EVENT_RCU(rcu_torture_read,
* "Begin": rcu_barrier() started.
* "EarlyExit": rcu_barrier() piggybacked, thus early exit.
* "Inc1": rcu_barrier() piggyback check counter incremented.
* "OfflineNoCBQ": rcu_barrier() found offline no-CBs CPU with callbacks.
* "OnlineQ": rcu_barrier() found online CPU with callbacks.
* "OnlineNQ": rcu_barrier() found online CPU, no callbacks.
* "IRQ": An rcu_barrier_callback() callback posted on remote CPU.