diff options
| author | Chris Zankel <chris@zankel.net> | 2014-02-24 00:34:36 -0800 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2014-02-24 00:34:36 -0800 |
| commit | b3fdfc1b4b641d372e35ced98814289bc60bc5d1 (patch) | |
| tree | 5f11d5ba885031dde45690745646519fb887f447 /kernel/trace/ring_buffer.c | |
| parent | c0e50d41126e4786d9cf1105bdf783e55c99f915 (diff) | |
| parent | f63b6d7555cd4064554b39da4d44c4cbbc9d6a4a (diff) | |
Merge tag 'xtensa-for-next-20140221-1' into for_next
Xtensa fixes for 3.14:
- allow booting xtfpga on boards with new uBoot and >128MBytes memory;
- drop nonexistent GPIO32 support from fsf variant;
- don't select USE_GENERIC_SMP_HELPERS;
- enable common clock framework support, set up ethoc clock on xtfpga;
- wire up sched_setattr and sched_getattr syscalls.
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index cc2f66f68dc5..fc4da2d97f9b 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2397,6 +2397,13 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer, write &= RB_WRITE_MASK; tail = write - length; + /* + * If this is the first commit on the page, then it has the same + * timestamp as the page itself. + */ + if (!tail) + delta = 0; + /* See if we shot pass the end of this buffer page */ if (unlikely(write > BUF_PAGE_SIZE)) return rb_move_tail(cpu_buffer, length, tail, @@ -2558,7 +2565,7 @@ rb_reserve_next_event(struct ring_buffer *buffer, if (unlikely(test_time_stamp(delta))) { int local_clock_stable = 1; #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK - local_clock_stable = sched_clock_stable; + local_clock_stable = sched_clock_stable(); #endif WARN_ONCE(delta > (1ULL << 59), KERN_WARNING "Delta way too big! %llu ts=%llu write stamp = %llu\n%s", |