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sched/debug: Add explicit TASK_PARKED printing

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Currently TASK_PARKED is masqueraded as TASK_INTERRUPTIBLE, give it
its own print state because it will not in fact get woken by regular
wakeups and is a long-term state.

This requires moving TASK_PARKED into the TASK_REPORT mask, and since
that latter needs to be a contiguous bitmask, we need to shuffle the
bits around a bit.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra
2017-09-22 18:37:28 +02:00
committed by Ingo Molnar
parent 5d68cc95fb
commit 8ef9925b02
3 changed files with 10 additions and 11 deletions
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2
include/trace/events/sched.h
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@@ -160,7 +160,7 @@ TRACE_EVENT(sched_switch,
__print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|",
{ 0x01, "S" }, { 0x02, "D" }, { 0x04, "T" },
{ 0x08, "t" }, { 0x10, "X" }, { 0x20, "Z" },
{ 0x40, "I" }) :
{ 0x40, "P" }, { 0x80, "I" }) :
"R",
__entry->prev_state & TASK_STATE_MAX ? "+" : "",