History

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner: "A set of small fixes: - Repair the ktime_get_coarse() functions so they actually deliver what they are supposed to: tick granular time stamps. The current code missed to add the accumulated nanoseconds part of the timekeeper so the resulting granularity was 1 second. - Prevent the tracer from infinitely recursing into time getter functions in the arm architectured timer by marking these functions notrace - Fix a trivial compiler warning caused by wrong qualifier ordering" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Repair ktime_get_coarse*() granularity clocksource/drivers/arm_arch_timer: Don't trace count reader functions clocksource/drivers/timer-ti-dm: Change to new style declaration

Linus Torvalds committed 7 years ago

Commit efba92d2 parents f763cf8 e3ff9c33 files · +8 −7Browse files

Unified · Split

3 files
  1. drivers/clocksource/arm_arch_timer.c +4 −4
  2. drivers/clocksource/timer-ti-dm.c +1 −1
  3. kernel/time/timekeeping.c +3 −2
drivers/clocksource/arm_arch_timer.c+4−4
@@ -149,22 +149,22 @@ u32 arch_timer_reg_read(int access, enum arch_timer_reg reg, · 148 unmodified lines
149 return val;149 return val;
150}150}
151 151
152static u64 arch_counter_get_cntpct_stable(void)152static notrace u64 arch_counter_get_cntpct_stable(void)
153{153{
154 return __arch_counter_get_cntpct_stable();154 return __arch_counter_get_cntpct_stable();
155}155}
156 156
157static u64 arch_counter_get_cntpct(void)157static notrace u64 arch_counter_get_cntpct(void)
158{158{
159 return __arch_counter_get_cntpct();159 return __arch_counter_get_cntpct();
160}160}
161 161
162static u64 arch_counter_get_cntvct_stable(void)162static notrace u64 arch_counter_get_cntvct_stable(void)
163{163{
164 return __arch_counter_get_cntvct_stable();164 return __arch_counter_get_cntvct_stable();
165}165}
166 166
167static u64 arch_counter_get_cntvct(void)167static notrace u64 arch_counter_get_cntvct(void)
168{168{
169 return __arch_counter_get_cntvct();169 return __arch_counter_get_cntvct();
170}170}
drivers/clocksource/timer-ti-dm.c+1−1
@@ -896,7 +896,7 @@ static int omap_dm_timer_remove(struct platform_device *pdev) · 895 unmodified lines
896 return ret;896 return ret;
897}897}
898 898
899const static struct omap_dm_timer_ops dmtimer_ops = {899static const struct omap_dm_timer_ops dmtimer_ops = {
900 .request_by_node = omap_dm_timer_request_by_node,900 .request_by_node = omap_dm_timer_request_by_node,
901 .request_specific = omap_dm_timer_request_specific,901 .request_specific = omap_dm_timer_request_specific,
902 .request = omap_dm_timer_request,902 .request = omap_dm_timer_request,
kernel/time/timekeeping.c+3−2
@@ -808,17 +808,18 @@ ktime_t ktime_get_coarse_with_offset(enum tk_offsets offs) · 807 unmodified lines
808 struct timekeeper *tk = &tk_core.timekeeper;808 struct timekeeper *tk = &tk_core.timekeeper;
809 unsigned int seq;809 unsigned int seq;
810 ktime_t base, *offset = offsets[offs];810 ktime_t base, *offset = offsets[offs];
811 u64 nsecs;
811 812
812 WARN_ON(timekeeping_suspended);813 WARN_ON(timekeeping_suspended);
813 814
814 do {815 do {
815 seq = read_seqcount_begin(&tk_core.seq);816 seq = read_seqcount_begin(&tk_core.seq);
816 base = ktime_add(tk->tkr_mono.base, *offset);817 base = ktime_add(tk->tkr_mono.base, *offset);
818 nsecs = tk->tkr_mono.xtime_nsec >> tk->tkr_mono.shift;
817 819
818 } while (read_seqcount_retry(&tk_core.seq, seq));820 } while (read_seqcount_retry(&tk_core.seq, seq));
819 821
820 return base;822 return base + nsecs;
821
822}823}
823EXPORT_SYMBOL_GPL(ktime_get_coarse_with_offset);824EXPORT_SYMBOL_GPL(ktime_get_coarse_with_offset);
824 825