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  • trace_output.c
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  • Lai Jiangshan's avatar
    tracing: infrastructure for supporting binary record · 1427cdf0
    Lai Jiangshan authored Mar 06, 2009
    
    
    Impact: save on memory for tracing
    
    Current tracers are typically using a struct(like struct ftrace_entry,
    struct ctx_switch_entry, struct special_entr etc...)to record a binary
    event. These structs can only record a their own kind of events.
    A new kind of tracer need a new struct and a lot of code too handle it.
    
    So we need a generic binary record for events. This infrastructure
    is for this purpose.
    
    [fweisbec@gmail.com: rebase against latest -tip, make it safe while sched
    tracing as reported by Steven Rostedt]
    
    Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
    Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
    Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
    LKML-Reference: <1236356510-8381-3-git-send-email-fweisbec@gmail.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    1427cdf0

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