hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

tracing/hrtimer: Fix tracing bugs by taking all clock bases and modes into account 

So far only CLOCK_MONOTONIC and CLOCK_REALTIME were taken into account as
well as HRTIMER_MODE_ABS/REL in the hrtimer_init tracepoint. The query for
detecting the ABS or REL timer modes is not valid anymore, it got broken
by the introduction of HRTIMER_MODE_PINNED.

HRTIMER_MODE_PINNED is not evaluated in the hrtimer_init() call, but for the
sake of completeness print all given modes.

Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: keescook@chromium.org
Link: http://lkml.kernel.org/r/20171221104205.7269-9-anna-maria@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Anna-Maria Gleixner 2017-12-21 11:41:37 +01:00 committed by Ingo Molnar
parent 19b51cb5ff
commit 91633eed73
1 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
include/trace/events/timer.h
View File

@ -136,6 +136,20 @@ DEFINE_EVENT(timer_class, timer_cancel,
TP_ARGS(timer)
);
#define decode_clockid(type) \
__print_symbolic(type, \
{ CLOCK_REALTIME, "CLOCK_REALTIME" }, \
{ CLOCK_MONOTONIC, "CLOCK_MONOTONIC" }, \
{ CLOCK_BOOTTIME, "CLOCK_BOOTTIME" }, \
{ CLOCK_TAI, "CLOCK_TAI" })
#define decode_hrtimer_mode(mode) \
__print_symbolic(mode, \
{ HRTIMER_MODE_ABS, "ABS" }, \
{ HRTIMER_MODE_REL, "REL" }, \
{ HRTIMER_MODE_ABS_PINNED, "ABS|PINNED" }, \
{ HRTIMER_MODE_REL_PINNED, "REL|PINNED" })
/**
* hrtimer_init - called when the hrtimer is initialized
* @hrtimer: pointer to struct hrtimer
@ -162,10 +176,8 @@ TRACE_EVENT(hrtimer_init,
),
TP_printk("hrtimer=%p clockid=%s mode=%s", __entry->hrtimer,
__entry->clockid == CLOCK_REALTIME ?
"CLOCK_REALTIME" : "CLOCK_MONOTONIC",
__entry->mode == HRTIMER_MODE_ABS ?
"HRTIMER_MODE_ABS" : "HRTIMER_MODE_REL")
decode_clockid(__entry->clockid),
decode_hrtimer_mode(__entry->mode))
);
/**