Andi Kleen pointed out a trace that showed lots of functions being
called in the trace event hot path. These functions would help to
be inlined. More needs to be done, but this is just a start.
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
for-next
Head SHA1: 38e11df134297ea3860c7aad8263ece27db01308
Steven Rostedt (Red Hat) (8):
tracing: Create a always_inlined __trace_buffer_lock_reserve()
ring-buffer: Make rb_reserve_next_event() always inlined
ring-buffer: Always inline rb_event_data()
tracing: Make tracepoint_printk a static_key
tracing: Make __buffer_unlock_commit() always_inline
ring-buffer: Force inline of hotpath helper functions
ring-buffer: Froce rb_update_write_stamp() to be inlined
ring-buffer: Force rb_end_commit() and rb_set_commit_to_write() inline
----
include/linux/ftrace.h | 4 +
kernel/sysctl.c | 2 +-
kernel/trace/ring_buffer.c | 28 ++---
kernel/trace/trace.c | 206 ++++++++++++++++++++++++++---------
kernel/trace/trace.h | 4 +-
kernel/trace/trace_branch.c | 2 +-
kernel/trace/trace_events.c | 40 -------
kernel/trace/trace_functions_graph.c | 4 +-
kernel/trace/trace_hwlat.c | 2 +-
9 files changed, 177 insertions(+), 115 deletions(-)
