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authorUwe Kleine-König <[email protected]>2018-09-05 11:36:36 +0200
committerIngo Molnar <[email protected]>2018-09-10 11:05:56 +0200
commitff28915fd31ccafc0d38e6f84b66df280ed9e86a (patch)
treefc05512d865bdb0036b7d6ec077972417f6dbeb6
parent7477a3504e619768c9e972dafe2907e6b8ed9823 (diff)
sched/debug: Use symbolic names for task state constants
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 <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--include/trace/events/sched.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 0be866c91f62..f07b270d4fc4 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -159,9 +159,14 @@ 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 ? "+" : "",