Merge branches 'timers-urgent-for-linus' and 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timers and perf fixes from Ingo Molnar:
"Timers:
- Fix another timekeeping bug
Pef:
- Make clean brace expansion fix for some shells, from Palmer Cox
- Warn user just once per guest kernel when not finding kernel info,
from David Ahern
- perf test fix from Jiri Olsa
- Fix error handling on event creation in perf top, from David Ahern
- Fix check on perf_target__strnerror, from Namhyung Kim
- Save the whole cmdline, from David Ahern
There's this infrastructure change:
- Prep work for the DWARF CFI post unwinder, so that it doesn't use
perf_session in lots of places, just evlist/evsel is enough.
which is a late infrastructure change that prepare for future feature
work - we wanted it upstream to simplify the fixes/development patch
flows."
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
time: Fix adjustment cleanup bug in timekeeping_adjust()
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Remove brace expansion from clean target
perf kvm top: Limit guest kernel info message to once
perf tools: Introduce intlist
perf tools: Change strlist to use the new rblist
perf tools: Introducing rblist
perf kvm: Use strtol for walking guestmount directory
perf tool: Save cmdline from user in file header vs what is passed to record
perf top: Error handling for counter creation should parallel perf-record
perf session: Remove no longer used synthesize_sample method
perf evsel: Adopt parse_sample method from perf_event
perf evlist: Introduce perf_evlist__parse_sample
perf session: Use perf_evlist__id_hdr_size more extensively
perf session: Use perf_evlist__sample_id_all more extensively
perf session: Use perf_evlist__sample_type more extensively
perf evsel: Precalculate the sample size
perf target: Fix check on buffer size
perf symbols: Fix array sizes for binary types arrays
perf test: Fix parse events automated tests
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 2988bc8..e16af19 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -923,20 +923,22 @@
if (likely(error <= interval))
adj = 1;
else
- adj = timekeeping_bigadjust(tk, error, &interval,
- &offset);
- } else if (error < -interval) {
- /* See comment above, this is just switched for the negative */
- error >>= 2;
- if (likely(error >= -interval)) {
- adj = -1;
- interval = -interval;
- offset = -offset;
- } else
- adj = timekeeping_bigadjust(tk, error, &interval,
- &offset);
- } else
- return;
+ adj = timekeeping_bigadjust(tk, error, &interval, &offset);
+ } else {
+ if (error < -interval) {
+ /* See comment above, this is just switched for the negative */
+ error >>= 2;
+ if (likely(error >= -interval)) {
+ adj = -1;
+ interval = -interval;
+ offset = -offset;
+ } else {
+ adj = timekeeping_bigadjust(tk, error, &interval, &offset);
+ }
+ } else {
+ goto out_adjust;
+ }
+ }
if (unlikely(tk->clock->maxadj &&
(tk->mult + adj > tk->clock->mult + tk->clock->maxadj))) {
@@ -999,6 +1001,7 @@
tk->xtime_nsec -= offset;
tk->ntp_error -= (interval - offset) << tk->ntp_error_shift;
+out_adjust:
/*
* It may be possible that when we entered this function, xtime_nsec
* was very small. Further, if we're slightly speeding the clocksource
