diff options
| author | Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> | 2020-05-04 14:05:05 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-06-29 20:58:49 +0200 |
| commit | 88748e330040ecf4681a2c8f344fd386862bf913 (patch) | |
| tree | 3373b3f05a013a7ec162fba396d50a5a964672c9 /include/trace | |
| parent | rcu: Add comment documenting rcu_callback_map's purpose (diff) | |
| download | linux-88748e330040ecf4681a2c8f344fd386862bf913.tar.xz linux-88748e330040ecf4681a2c8f344fd386862bf913.zip | |
trace: events: rcu: Change description of rcu_dyntick trace event
The different strings used for describing the polarity are
Start, End and StillNonIdle. Since StillIdle is not used in any trace
point for rcu_dyntick, it can be removed and StillNonIdle can be added
in the description. Because StillNonIdle is used in a few tracepoints for
rcu_dyntick.
Similarly, USER, IDLE and IRQ are used for describing context in
the rcu_dyntick tracepoints. Since, "KERNEL" is not used for any
of the rcu_dyntick tracepoints, remove it from the description.
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/rcu.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index f9a7811148e2..af274d1532bf 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -435,11 +435,12 @@ TRACE_EVENT_RCU(rcu_fqs, #endif /* #if defined(CONFIG_TREE_RCU) */ /* - * Tracepoint for dyntick-idle entry/exit events. These take a string - * as argument: "Start" for entering dyntick-idle mode, "Startirq" for - * entering it from irq/NMI, "End" for leaving it, "Endirq" for leaving it - * to irq/NMI, "--=" for events moving towards idle, and "++=" for events - * moving away from idle. + * Tracepoint for dyntick-idle entry/exit events. These take 2 strings + * as argument: + * polarity: "Start", "End", "StillNonIdle" for entering, exiting or still not + * being in dyntick-idle mode. + * context: "USER" or "IDLE" or "IRQ". + * NMIs nested in IRQs are inferred with dynticks_nesting > 1 in IRQ context. * * These events also take a pair of numbers, which indicate the nesting * depth before and after the event of interest, and a third number that is |