p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

sched/debug: Rename task-state printing helpers 

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/proc/array.c
View File

@ -137,7 +137,7 @@ static const char * const task_state_array[] = {
static inline const char *get_task_state(struct task_struct *tsk)
{
BUILD_BUG_ON(1 + ilog2(TASK_REPORT_MAX) != ARRAY_SIZE(task_state_array));
return task_state_array[__get_task_state(tsk)];
return task_state_array[task_state_index(tsk)];
}
static inline int get_task_umask(struct task_struct *tsk)

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 */

12
kernel/trace/trace_output.c
View File

@ -921,8 +921,8 @@ static enum print_line_t trace_ctxwake_print(struct trace_iterator *iter,
trace_assign_type(field, iter->ent);
T = __task_state_to_char(field->next_state);
S = __task_state_to_char(field->prev_state);
T = task_index_to_char(field->next_state);
S = task_index_to_char(field->prev_state);
trace_find_cmdline(field->next_pid, comm);
trace_seq_printf(&iter->seq,
" %5d:%3d:%c %s [%03d] %5d:%3d:%c %s\n",
@ -957,8 +957,8 @@ static int trace_ctxwake_raw(struct trace_iterator *iter, char S)
trace_assign_type(field, iter->ent);
if (!S)
S = __task_state_to_char(field->prev_state);
T = __task_state_to_char(field->next_state);
S = task_index_to_char(field->prev_state);
T = task_index_to_char(field->next_state);
trace_seq_printf(&iter->seq, "%d %d %c %d %d %d %c\n",
field->prev_pid,
field->prev_prio,
@ -993,8 +993,8 @@ static int trace_ctxwake_hex(struct trace_iterator *iter, char S)
trace_assign_type(field, iter->ent);
if (!S)
S = __task_state_to_char(field->prev_state);
T = __task_state_to_char(field->next_state);
S = task_index_to_char(field->prev_state);
T = task_index_to_char(field->next_state);
SEQ_PUT_HEX_FIELD(s, field->prev_pid);
SEQ_PUT_HEX_FIELD(s, field->prev_prio);

8
kernel/trace/trace_sched_wakeup.c
View File

@ -397,10 +397,10 @@ tracing_sched_switch_trace(struct trace_array *tr,
entry = ring_buffer_event_data(event);
entry->prev_pid = prev->pid;
entry->prev_prio = prev->prio;
entry->prev_state = __get_task_state(prev);
entry->prev_state = task_state_index(prev);
entry->next_pid = next->pid;
entry->next_prio = next->prio;
entry->next_state = __get_task_state(next);
entry->next_state = task_state_index(next);
entry->next_cpu = task_cpu(next);
if (!call_filter_check_discard(call, entry, buffer, event))
@ -425,10 +425,10 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
entry = ring_buffer_event_data(event);
entry->prev_pid = curr->pid;
entry->prev_prio = curr->prio;
entry->prev_state = __get_task_state(curr);
entry->prev_state = task_state_index(curr);
entry->next_pid = wakee->pid;
entry->next_prio = wakee->prio;
entry->next_state = __get_task_state(wakee);
entry->next_state = task_state_index(wakee);
entry->next_cpu = task_cpu(wakee);
if (!call_filter_check_discard(call, entry, buffer, event))