• Xiao Guangrong's avatar
    perf: Factorize trace events raw sample buffer operations · 430ad5a6
    Xiao Guangrong authored
    Introduce ftrace_perf_buf_prepare() and ftrace_perf_buf_submit() to
    gather the common code that operates on raw events sampling buffer.
    This cleans up redundant code between regular trace events, syscall
    events and kprobe events.
    Changelog v1->v2:
    - Rename function name as per Masami and Frederic's suggestion
    - Add __kprobes for ftrace_perf_buf_prepare() and make
      ftrace_perf_buf_submit() inline as per Masami's suggestion
    - Export ftrace_perf_buf_prepare since modules will use it
    Signed-off-by: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
    Acked-by: default avatarMasami Hiramatsu <mhiramat@redhat.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Jason Baron <jbaron@redhat.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    LKML-Reference: <4B60E92D.9000808@cn.fujitsu.com>
    Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
ftrace.h 24.3 KB