From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit ff28915fd31ccafc0d38e6f84b66df280ed9e86a ]
include/trace/events/sched.h includes <linux/sched.h> (via <linux/sched/numa_balancing.h>) and so knows about the TASK_* constants used to interpret .prev_state. So instead of duplicating the magic numbers make use of the defined macros to ease understanding the mapping from state bits to letters which isn't completely intuitive for an outsider.
Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Sebastian Andrzej Siewior bigeasy@linutronix.de Cc: Thomas Gleixner tglx@linutronix.de Cc: kernel@pengutronix.de Link: http://lkml.kernel.org/r/20180905093636.24068-1-u.kleine-koenig@pengutronix.... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/trace/events/sched.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 6e692a52936c7..18197e0bb5108 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -169,9 +169,14 @@ TRACE_EVENT(sched_switch,
(__entry->prev_state & (TASK_REPORT_MAX - 1)) ? __print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|", - { 0x01, "S" }, { 0x02, "D" }, { 0x04, "T" }, - { 0x08, "t" }, { 0x10, "X" }, { 0x20, "Z" }, - { 0x40, "P" }, { 0x80, "I" }) : + { TASK_INTERRUPTIBLE, "S" }, + { TASK_UNINTERRUPTIBLE, "D" }, + { __TASK_STOPPED, "T" }, + { __TASK_TRACED, "t" }, + { EXIT_DEAD, "X" }, + { EXIT_ZOMBIE, "Z" }, + { TASK_PARKED, "P" }, + { TASK_DEAD, "I" }) : "R",
__entry->prev_state & TASK_REPORT_MAX ? "+" : "",