Patch "perf docs: Document bpf event modifier" has been added to the 6.9-stable tree

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This is a note to let you know that I've just added the patch titled

    perf docs: Document bpf event modifier

to the 6.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-docs-document-bpf-event-modifier.patch
and it can be found in the queue-6.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 3126a9716d85d543b4fe915572aba6f6fbc71637
Author: Ian Rogers <irogers@xxxxxxxxxx>
Date:   Tue Apr 16 10:00:13 2024 -0700

    perf docs: Document bpf event modifier
    
    [ Upstream commit eb4d27cf9aef3e6c9bcaf8fa1a1cadc2433d847b ]
    
    Document that 'b' is used as a modifier to make an event use a BPF
    counter.
    
    Fixes: 01bd8efcec444468 ("perf stat: Introduce ':b' modifier")
    Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
    Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
    Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
    Cc: Athira Rajeev <atrajeev@xxxxxxxxxxxxxxxxxx>
    Cc: Ingo Molnar <mingo@xxxxxxxxxx>
    Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
    Cc: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
    Cc: Mark Rutland <mark.rutland@xxxxxxx>
    Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
    Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    Cc: Ravi Bangoria <ravi.bangoria@xxxxxxx>
    Cc: Song Liu <song@xxxxxxxxxx>
    Cc: Thomas Richter <tmricht@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240416170014.985191-1-irogers@xxxxxxxxxx
    Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 3b12595193c9f..6bf2468f59d31 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -71,6 +71,7 @@ counted. The following modifiers exist:
  D - pin the event to the PMU
  W - group is weak and will fallback to non-group if not schedulable,
  e - group or event are exclusive and do not share the PMU
+ b - use BPF aggregration (see perf stat --bpf-counters)
 
 The 'p' modifier can be used for specifying how precise the instruction
 address should be. The 'p' modifier can be specified multiple times:




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