ring-buffer: Make rb_reserve_next_event() always inlined

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The function rb_reserved_next_event() is called by two functions:
ring_buffer_lock_reserve() and ring_buffer_write(). This is in a very hot
path of the tracing code, and it is best that they are not functions. The
two callers are basically wrapers for rb_reserver_next_event(). Removing the
function calls can save execution time in the hotpath of tracing.

Link: http://lkml.kernel.org/r/20161121183700.GW26852@two.firstfloor.org

Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt (Red Hat) 2016-11-23 11:36:30 -05:00 • committed by Steven Rostedt

parent 3e9a8aadca

commit fa7ffb39ef

1 changed files with 1 additions and 1 deletions

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kernel/trace/ring_buffer.c

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