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sched/debug: Rename task-state printing helpers

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Steve requested better names for the new task-state helper functions.

So introduce the concept of task-state index for the printing and
rename __get_task_state() to task_state_index() and
__task_state_to_char() to task_index_to_char().

Requested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170929115016.pzlqc7ss3ccystyg@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2017-09-29 13:50:16 +02:00 • committed by Ingo Molnar
parent 62cb1188ed
commit 1d48b080bc
5 changed files with 15 additions and 15 deletions
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6
include/linux/sched.h
View file

@ -1248,7 +1248,7 @@ static inline pid_t task_pgrp_nr(struct task_struct *tsk)
#define TASK_REPORT_IDLE (TASK_REPORT + 1)
#define TASK_REPORT_MAX (TASK_REPORT_IDLE << 1)
static inline unsigned int __get_task_state(struct task_struct *tsk)
static inline unsigned int task_state_index(struct task_struct *tsk)
{
unsigned int tsk_state = READ_ONCE(tsk->state);
unsigned int state = (tsk_state | tsk->exit_state) & TASK_REPORT;
@ -1261,7 +1261,7 @@ static inline unsigned int __get_task_state(struct task_struct *tsk)
return fls(state);
}
static inline char __task_state_to_char(unsigned int state)
static inline char task_index_to_char(unsigned int state)
{
static const char state_char[] = "RSDTtXZPI";
@ -1272,7 +1272,7 @@ static inline char __task_state_to_char(unsigned int state)
static inline char task_state_to_char(struct task_struct *tsk)
{
return __task_state_to_char(__get_task_state(tsk));
return task_index_to_char(task_state_index(tsk));
}
/**

2
include/trace/events/sched.h
View file

@ -117,7 +117,7 @@ static inline long __trace_sched_switch_state(bool preempt, struct task_struct *
if (preempt)
return TASK_STATE_MAX;
return __get_task_state(p);
return task_state_index(p);
}
#endif /* CREATE_TRACE_POINTS */