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    Subject[PATCH 0/10] ftrace/filter: Trace events filtering related fixies
    Date
    hi,

    on the way to perf/ftrace filtering changes, I made some changes
    to the current events filtering code. It could be divided into 3
    parts roughly:

    - remove unnecessary dynamic allocations (patches 1 - 4)
    - unify the predicate tree walking (patches 5 - 9)
    - added startup test for event filtering (patch 10)

    attached patches:
    - 01/10 tracing/filter: Use static allocation for filter predicates
    - 02/10 tracing/filter: Separate predicate init and filter addition
    - 03/10 tracing/filter: Remove field_name from filter_pred struct
    - 04/10 tracing/filter: Simplify tracepoint event lookup
    - 05/10 tracing/filter: Unify predicate tree walking, change check_pred_tree function to use it
    - 06/10 tracing/filter: Change count_leafs function to use walk_pred_tree
    - 07/10 tracing/filter: Change fold_pred_tree function to use walk_pred_tree
    - 08/10 tracing/filter: Change fold_pred function to use walk_pred_tree
    - 09/10 tracing/filter: Change filter_match_preds function to use walk_pred_tree
    - 10/10 tracing/filter: Add startup tests for events filter

    wbr,
    jirka
    ---
    include/trace/events/test.h | 45 ++
    kernel/trace/trace.h | 14 +-
    kernel/trace/trace_events_filter.c | 778 +++++++++++++++++++++---------------
    3 files changed, 497 insertions(+), 340 deletions(-)


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