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[v4,0/3] Improve trace/ring_buffer.c

Message ID 20230305155532.5549-1-ubizjak@gmail.com (mailing list archive)
Headers show
Series Improve trace/ring_buffer.c | expand

Message

Uros Bizjak March 5, 2023, 3:55 p.m. UTC 
This series improves ring_buffer.c by changing the type of some
static functions to void or bool and uses try_cmpxchg instead of
cmpxchg (*ptr, old, new) == old where appropriate.

v2: Convert only loops with cmpxchg.
v3: Rearrange variable declarations.
v4: Change ret in rb_get_reader_page.
    Rearrange variable declarations.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mukesh Ojha <quic_mojha@quicinc.com>

Uros Bizjak (3):
  ring_buffer: Change some static functions to void
  ring_buffer: Change some static functions to bool
  ring_buffer: Use try_cmpxchg instead of cmpxchg

 kernel/trace/ring_buffer.c | 77 +++++++++++++++++---------------------
 1 file changed, 34 insertions(+), 43 deletions(-)