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| author |   Paul Moore <pmoore@redhat.com> | 2014-03-31 09:49:07 -0400 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2014-03-31 09:49:07 -0400 |
| commit | 6d32c850621b0be75777b9102b14f6268bbd9f0f (patch) | |
| tree | fec325f5c1ae763f5eccb3ca1254ab9d9d164b05 /kernel/trace/ring_buffer.c | |
| parent | selinux: correctly label /proc inodes in use before the policy is loaded (diff) | |
| parent | Linux 3.14 (diff) | |
| download | wireguard-linux-6d32c850621b0be75777b9102b14f6268bbd9f0f.tar.xz wireguard-linux-6d32c850621b0be75777b9102b14f6268bbd9f0f.zip | |
Merge tag 'v3.14' into next
Linux 3.14
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", |